Cisco IOS和StrongSwan之间的IKEv1/IKEv2配置示例
目录
简介
本文档提供Cisco IOS®和strongSwan之间LAN到LAN(L2L)VPN的配置示例。同时显示Internet密钥交换版本1(IKEv1)和Internet密钥交换版本2(IKEv2)配置。
先决条件
要求
Cisco 建议您了解以下主题：
- 有关Linux配置的基本知识
- 有关Cisco IOS上VPN配置的知识
- 了解以下协议：
- IKEv1
- IKEv2
- 互联网协议安全(IPSec)
使用的组件
本文档中的信息基于以下软件版本：
- 思科IOS版本15.3T
- strongSwan 5.0.4
- Linux内核3.2.12
配置
网络图
两个示例的拓扑相同，即Cisco IOS和StrongSwan之间的L2L隧道。
流量在192.168.1.0/24<->192.168.2.0/24之间受到保护。
开源L2L IPSec VPN
有几个开源项目利用互联网密钥交换(IKE)和IPSec协议构建安全L2L隧道：
免费安全广域网（免费S/WAN）：历史记录，未主动维护
ipsec工具：racoon — 不支持IKEv2，旧版Linux内核2.6
奥彭斯万：非常基本的IKEv2支持、较旧的Linux内核2.6和更早的API，未主动维护
strongSwan:支持IKEv2和EAP/移动扩展、使用NETKEY API（内核2.6及更高版本中本机IPSec实施的名称）的新Linux内核3.x及更高版本，并主动维护，详细记录
目前，最佳选择通常是强天鹅。在配置上与Openswan相似，但有几个细微差异。本指南重点介绍StrongSwan和Cisco IOS配置。
Cisco IOS和StrongSwan之间的IKEv1
Cisco IOS配置
crypto isakmp policy 10
encr aes
authentication pre-share
group 5
crypto isakmp key cisco address 172.16.10.2
crypto ipsec transform-set TS esp-aes esp-sha-hmac
mode tunnel
crypto map cmap 10 ipsec-isakmp
set peer 172.16.10.2
set transform-set TS
match address cryptoacl
interface Ethernet0/1
ip address 192.168.1.1 255.255.255.0
interface Ethernet0/0
ip address 172.16.10.1 255.255.255.0
crypto map cmap
ip access-list extended cryptoacl
permit ip 192.168.1.0 0.0.0.255 192.168.2.0 0.0.0.255
strongSwan配置
左侧与strongSwan相关，右侧为远程（本例中为Cisco IOS）。
/etc/ipsec.conf
config setup
# strictcrlpolicy=yes
# uniqueids = no
conn %default
ikelifetime=1440m
keylife=60m
rekeymargin=3m
keyingtries=1
keyexchange=ikev1
authby=secret
conn ciscoios
left=172.16.10.2 #strongswan outside address
leftsubnet=192.168.2.0/24 #network behind strongswan
leftid=172.16.10.2 #IKEID sent by strongswan
leftfirewall=yes
right=172.16.10.1 #IOS outside address
rightsubnet=192.168.1.0/24 #network behind IOS
rightid=172.16.10.1 #IKEID sent by IOS
auto=add
ike=aes128-md5-modp1536 #P1: modp1536 = DH group 5
esp=aes128-sha1 #P2
默认情况下，Cisco IOS使用地址作为IKE ID — 这就是为什么地址被用作“rightid”和“leftid”。strongSwan与Cisco IOS一样，支持下一代加密(Suite B) — 因此可以将4096 Diffie-Hellman(DH)密钥与AES256和SHA512一起使用。
对于auto参数，已使用“add”参数。这会在隧道收到有趣流量后启动隧道。为了立即启动它，可以使用“start”参数。
/etc/ipsec.secrets
172.16.10.2 172.16.10.1 : PSK cisco
对于IKEv1，两个密钥需要相同，在本例中为“cisco”。
Cisco IOS与StrongSwan之间的IKEv2
Cisco IOS配置
crypto ikev2 proposal ikev2proposal
encryption aes-cbc-128
integrity sha1
group 5
crypto ikev2 policy ikev2policy
match fvrf any
proposal ikev2proposal
crypto ikev2 keyring keys
peer strongswan
address 172.16.10.2
pre-shared-key local cisco
pre-shared-key remote cisco
crypto ikev2 profile ikev2profile
match identity remote address 172.16.10.2 255.255.255.255
authentication remote pre-share
authentication local pre-share
keyring local keys
crypto ipsec transform-set TS esp-aes esp-sha-hmac
mode tunnel
crypto map cmap 10 ipsec-isakmp
set peer 172.16.10.2
set transform-set TS
set ikev2-profile ikev2profile
match address cryptoacl
interface Ethernet0/1
ip address 192.168.1.1 255.255.255.0
interface Ethernet0/0
ip address 172.16.10.1 255.255.255.0
crypto map cmap
ip access-list extended cryptoacl
permit ip 192.168.1.0 0.0.0.255 192.168.2.0 0.0.0.255
strongSwan配置
与IKEv1相比，只有两项更改：密钥交换，可能还有密钥。
/etc/ipsec.conf
config setup
# strictcrlpolicy=yes
# uniqueids = no
conn %default
ikelifetime=1440m
keylife=60m
rekeymargin=3m
keyingtries=1
keyexchange=ikev1
authby=secret
conn ciscoios
left=172.16.10.2
leftsubnet=192.168.2.0/24
leftid=172.16.10.2
leftfirewall=yes
right=172.16.10.1
rightsubnet=192.168.1.0/24
rightid=172.16.10.1
auto=add
ike=aes128-sha1-modp1536
esp=aes128-sha1
keyexchange=ikev2
/etc/ipsec.secrets
172.16.10.2 : PSK "cisco"
172.16.10.1 : PSK "cisco"
在IKEv2中，每个站点的密钥可以不同。
验证
有关验证过程，请参阅故障排除部分。
故障排除
本部分提供的信息可用于对配置进行故障排除。
Cisco IOS和StrongSwan之间的IKEv1
Cisco IOS
R1#ping 192.168.2.1 source e0/1 repeat 1
Cisco IOS触发的隧道建立
*May 24 18:02:48.464: IPSEC(sa_request): ,
(key eng. msg.) OUTBOUND local= 172.16.10.1:500, remote= 172.16.10.2:500,
local_proxy= 192.168.1.0/255.255.255.0/256/0,
remote_proxy= 192.168.2.0/255.255.255.0/256/0,
protocol= ESP, transform= esp-aes esp-sha-hmac (Tunnel),
lifedur= 3600s and 4608000kb,
spi= 0x0(0), conn_id= 0, keysize= 128, flags= 0x0
*May 24 18:02:48.465: ISAKMP:(0): SA request profile is (NULL)
*May 24 18:02:48.465: ISAKMP: Created a peer struct for 172.16.10.2, peer port 500
*May 24 18:02:48.465: ISAKMP: New peer created peer = 0xF334E7E0 peer_handle =
0x80000006
*May 24 18:02:48.465: ISAKMP: Locking peer struct 0xF334E7E0, refcount 1 for
isakmp_initiator
*May 24 18:02:48.465: ISAKMP: local port 500, remote port 500
*May 24 18:02:48.465: ISAKMP: set new node 0 to QM_IDLE
*May 24 18:02:48.465: ISAKMP: Find a dup sa in the avl tree during calling
isadb_insert sa = F49C9890
*May 24 18:02:48.465: ISAKMP:(0):Can not start Aggressive mode, trying Main mode.
*May 24 18:02:48.465: ISAKMP:(0):found peer pre-shared key matching 172.16.10.2
*May 24 18:02:48.465: ISAKMP:(0): constructed NAT-T vendor-rfc3947 ID
*May 24 18:02:48.465: ISAKMP:(0): constructed NAT-T vendor-07 ID
*May 24 18:02:48.465: ISAKMP:(0): constructed NAT-T vendor-03 ID
*May 24 18:02:48.465: ISAKMP:(0): constructed NAT-T vendor-02 ID
*May 24 18:02:48.465: ISAKMP:(0):Input = IKE_MESG_FROM_IPSEC, IKE_SA_REQ_MM
*May 24 18:02:48.465: ISAKMP:(0):Old State = IKE_READY New State = IKE_I_MM1
*May 24 18:02:48.465: ISAKMP:(0): beginning Main Mode exchange
*May 24 18:02:48.465: ISAKMP:(0): sending packet to 172.16.10.2 my_port 500
peer_port 500 (I) MM_NO_STATE
*May 24 18:02:48.465: ISAKMP:(0):Sending an IKE IPv4 Packet.
*May 24 18:02:48.466: ISAKMP (0): received packet from 172.16.10.2 dport 500
sport 500 Global (I) MM_NO_STATE
*May 24 18:02:48.466: ISAKMP:(0):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*May 24 18:02:48.466: ISAKMP:(0):Old State = IKE_I_MM1 New State = IKE_I_MM2
*May 24 18:02:48.466: ISAKMP:(0): processing SA payload. message ID = 0
*May 24 18:02:48.466: ISAKMP:(0): processing vendor id payload
*May 24 18:02:48.466: ISAKMP:(0): vendor ID seems Unity/DPD but major 215 mismatch
*May 24 18:02:48.466: ISAKMP:(0): vendor ID is XAUTH
*May 24 18:02:48.466: ISAKMP:(0): processing vendor id payload
*May 24 18:02:48.466: ISAKMP:(0): vendor ID is DPD
*May 24 18:02:48.466: ISAKMP:(0): processing vendor id payload
*May 24 18:02:48.466: ISAKMP:(0): vendor ID seems Unity/DPD but major 69 mismatch
*May 24 18:02:48.466: ISAKMP (0): vendor ID is NAT-T RFC 3947
*May 24 18:02:48.466: ISAKMP:(0):found peer pre-shared key matching 172.16.10.2
*May 24 18:02:48.466: ISAKMP:(0): local preshared key found
*May 24 18:02:48.466: ISAKMP : Scanning profiles for xauth ...
*May 24 18:02:48.466: ISAKMP:(0):Checking ISAKMP transform 1 against priority
10 policy
*May 24 18:02:48.466: ISAKMP: encryption AES-CBC
*May 24 18:02:48.466: ISAKMP: keylength of 128
*May 24 18:02:48.466: ISAKMP: hash SHA
*May 24 18:02:48.466: ISAKMP: default group 5
*May 24 18:02:48.466: ISAKMP: auth pre-share
*May 24 18:02:48.466: ISAKMP: life type in seconds
*May 24 18:02:48.466: ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
*May 24 18:02:48.466: ISAKMP:(0):atts are acceptable. Next payload is 0
*May 24 18:02:48.466: ISAKMP:(0):Acceptable atts:actual life: 0
*May 24 18:02:48.466: ISAKMP:(0):Acceptable atts:life: 0
*May 24 18:02:48.466: ISAKMP:(0):Fill atts in sa vpi_length:4
*May 24 18:02:48.466: ISAKMP:(0):Fill atts in sa life_in_seconds:86400
*May 24 18:02:48.466: ISAKMP:(0):Returning Actual lifetime: 86400
*May 24 18:02:48.466: ISAKMP:(0)::Started lifetime timer: 86400.
*May 24 18:02:48.466: ISAKMP:(0): processing vendor id payload
*May 24 18:02:48.466: ISAKMP:(0): vendor ID seems Unity/DPD but major 215 mismatch
*May 24 18:02:48.466: ISAKMP:(0): vendor ID is XAUTH
*May 24 18:02:48.466: ISAKMP:(0): processing vendor id payload
*May 24 18:02:48.466: ISAKMP:(0): vendor ID is DPD
*May 24 18:02:48.466: ISAKMP:(0): processing vendor id payload
*May 24 18:02:48.466: ISAKMP:(0): vendor ID seems Unity/DPD but major 69 mismatch
*May 24 18:02:48.466: ISAKMP (0): vendor ID is NAT-T RFC 3947
*May 24 18:02:48.466: ISAKMP:(0):Input = IKE_MESG_INTERNAL, IKE_PROCESS_MAIN_MODE
*May 24 18:02:48.466: ISAKMP:(0):Old State = IKE_I_MM2 New State = IKE_I_MM2
*May 24 18:02:48.466: ISAKMP:(0): sending packet to 172.16.10.2 my_port 500
peer_port 500 (I) MM_SA_SETUP
*May 24 18:02:48.466: ISAKMP:(0):Sending an IKE IPv4 Packet.
*May 24 18:02:48.466: ISAKMP:(0):Input = IKE_MESG_INTERNAL, IKE_PROCESS_COMPLETE
*May 24 18:02:48.466: ISAKMP:(0):Old State = IKE_I_MM2 New State = IKE_I_MM3
*May 24 18:02:48.474: ISAKMP (0): received packet from 172.16.10.2 dport 500 sport
500 Global (I) MM_SA_SETUP
*May 24 18:02:48.474: ISAKMP:(0):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*May 24 18:02:48.474: ISAKMP:(0):Old State = IKE_I_MM3 New State = IKE_I_MM4
*May 24 18:02:48.474: ISAKMP:(0): processing KE payload. message ID = 0
*May 24 18:02:48.482: ISAKMP:(0): processing NONCE payload. message ID = 0
*May 24 18:02:48.482: ISAKMP:(0):found peer pre-shared key matching 172.16.10.2
*May 24 18:02:48.482: ISAKMP:received payload type 20
*May 24 18:02:48.482: ISAKMP (1003): His hash no match - this node outside NAT
*May 24 18:02:48.482: ISAKMP:received payload type 20
*May 24 18:02:48.482: ISAKMP (1003): No NAT Found for self or peer
*May 24 18:02:48.482: ISAKMP:(1003):Input = IKE_MESG_INTERNAL, IKE_PROCESS_MAIN_MODE
*May 24 18:02:48.482: ISAKMP:(1003):Old State = IKE_I_MM4 New State = IKE_I_MM4
*May 24 18:02:48.482: ISAKMP:(1003):Send initial contact
*May 24 18:02:48.482: ISAKMP:(1003):SA is doing pre-shared key authentication using
id type ID_IPV4_ADDR
*May 24 18:02:48.482: ISAKMP (1003): ID payload
next-payload : 8
type : 1
address : 172.16.10.1
protocol : 17
port : 500
length : 12
*May 24 18:02:48.482: ISAKMP:(1003):Total payload length: 12
*May 24 18:02:48.482: ISAKMP:(1003): sending packet to 172.16.10.2 my_port 500
peer_port 500 (I) MM_KEY_EXCH
*May 24 18:02:48.482: ISAKMP:(1003):Sending an IKE IPv4 Packet.
*May 24 18:02:48.482: ISAKMP:(1003):Input = IKE_MESG_INTERNAL, IKE_PROCESS_COMPLETE
*May 24 18:02:48.482: ISAKMP:(1003):Old State = IKE_I_MM4 New State = IKE_I_MM5
*May 24 18:02:48.483: ISAKMP (1003): received packet from 172.16.10.2 dport 500
sport 500 Global (I) MM_KEY_EXCH
*May 24 18:02:48.483: ISAKMP:(1003): processing ID payload. message ID = 0
*May 24 18:02:48.483: ISAKMP (1003): ID payload
next-payload : 8
type : 1
address : 172.16.10.2
protocol : 0
port : 0
length : 12
*May 24 18:02:48.483: ISAKMP:(0):: peer matches *none* of the profiles
*May 24 18:02:48.483: ISAKMP:(1003): processing HASH payload. message ID = 0
*May 24 18:02:48.483: ISAKMP:(1003):SA authentication status:
authenticated
*May 24 18:02:48.483: ISAKMP:(1003):SA has been authenticated with 172.16.10.2
*May 24 18:02:48.483: ISAKMP: Trying to insert a peer 172.16.10.1/172.16.10.2/500/,
and inserted successfully F334E7E0.
*May 24 18:02:48.483: ISAKMP:(1003):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*May 24 18:02:48.483: ISAKMP:(1003):Old State = IKE_I_MM5 New State = IKE_I_MM6
*May 24 18:02:48.483: ISAKMP:(1003):Input = IKE_MESG_INTERNAL, IKE_PROCESS_MAIN_MODE
*May 24 18:02:48.483: ISAKMP:(1003):Old State = IKE_I_MM6 New State = IKE_I_MM6
*May 24 18:02:48.487: ISAKMP:(1003):Input = IKE_MESG_INTERNAL, IKE_PROCESS_COMPLETE
*May 24 18:02:48.487: ISAKMP:(1003):Old State = IKE_I_MM6 New State = IKE_P1_COMPLETE
*May 24 18:02:48.487: ISAKMP:(1003):beginning Quick Mode exchange, M-ID of 2605730229
*May 24 18:02:48.487: ISAKMP:(1003):QM Initiator gets spi
*May 24 18:02:48.487: ISAKMP:(1003): sending packet to 172.16.10.2 my_port 500
peer_port 500 (I) QM_IDLE
*May 24 18:02:48.487: ISAKMP:(1003):Sending an IKE IPv4 Packet.
*May 24 18:02:48.488: ISAKMP:(1003):Node 2605730229, Input = IKE_MESG_INTERNAL,
IKE_INIT_QM
*May 24 18:02:48.488: ISAKMP:(1003):Old State = IKE_QM_READY New State = IKE_QM_I_QM1
*May 24 18:02:48.488: ISAKMP:(1003):Input = IKE_MESG_INTERNAL, IKE_PHASE1_COMPLETE
*May 24 18:02:48.488: ISAKMP:(1003):Old State = IKE_P1_COMPLETE New State =
IKE_P1_COMPLETE
*May 24 18:02:48.488: ISAKMP (1003): received packet from 172.16.10.2 dport 500
sport 500 Global (I) QM_IDLE
*May 24 18:02:48.488: ISAKMP:(1003): processing HASH payload. message ID = 2605730229
*May 24 18:02:48.488: ISAKMP:(1003): processing SA payload. message ID = 2605730229
*May 24 18:02:48.488: ISAKMP:(1003):Checking IPSec proposal 1
*May 24 18:02:48.488: ISAKMP: transform 1, ESP_AES
*May 24 18:02:48.488: ISAKMP: attributes in transform:
*May 24 18:02:48.488: ISAKMP: key length is 128
*May 24 18:02:48.488: ISAKMP: authenticator is HMAC-SHA
*May 24 18:02:48.488: ISAKMP: encaps is 1 (Tunnel)
*May 24 18:02:48.488: ISAKMP: SA life type in seconds
*May 24 18:02:48.488: ISAKMP: SA life duration (basic) of 3600
*May 24 18:02:48.488: ISAKMP: SA life type in kilobytes
*May 24 18:02:48.488: ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0
*May 24 18:02:48.488: ISAKMP:(1003):atts are acceptable.
*May 24 18:02:48.488: IPSEC(validate_proposal_request): proposal part #1
*May 24 18:02:48.488: IPSEC(validate_proposal_request): proposal part #1,
(key eng. msg.) INBOUND local= 172.16.10.1:0, remote= 172.16.10.2:0,
local_proxy= 192.168.1.0/255.255.255.0/256/0,
remote_proxy= 192.168.2.0/255.255.255.0/256/0,
protocol= ESP, transform= NONE (Tunnel),
lifedur= 0s and 0kb,
spi= 0x0(0), conn_id= 0, keysize= 128, flags= 0x0
*May 24 18:02:48.488: Crypto mapdb : proxy_match
src addr : 192.168.1.0
dst addr : 192.168.2.0
protocol : 0
src port : 0
dst port : 0
*May 24 18:02:48.488: ISAKMP:(1003): processing NONCE payload. message ID = 2605730229
*May 24 18:02:48.488: ISAKMP:(1003): processing ID payload. message ID = 2605730229
*May 24 18:02:48.488: ISAKMP:(1003): processing ID payload. message ID = 2605730229
*May 24 18:02:48.488: ISAKMP:(1003):Node 2605730229, Input = IKE_MESG_FROM_PEER,
IKE_QM_EXCH
*May 24 18:02:48.488: ISAKMP:(1003):Old State = IKE_QM_I_QM1 New State =
IKE_QM_IPSEC_INSTALL_AWAIT
*May 24 18:02:48.488: IPSEC(key_engine): got a queue event with 1 KMI message(s)
*May 24 18:02:48.488: Crypto mapdb : proxy_match
src addr : 192.168.1.0
dst addr : 192.168.2.0
protocol : 256
src port : 0
dst port : 0
*May 24 18:02:48.488: IPSEC(crypto_ipsec_create_ipsec_sas): Map found cmap
*May 24 18:02:48.489: IPSEC(crypto_ipsec_sa_find_ident_head): reconnecting with the
same proxies and peer 172.16.10.2
*May 24 18:02:48.489: IPSEC(create_sa): sa created,
(sa) sa_dest= 172.16.10.1, sa_proto= 50,
sa_spi= 0x4C0D0EF0(1275924208),
sa_trans= esp-aes esp-sha-hmac , sa_conn_id= 7
sa_lifetime(k/sec)= (4608000/3600)
*May 24 18:02:48.489: IPSEC(create_sa): sa created,
(sa) sa_dest= 172.16.10.2, sa_proto= 50,
sa_spi= 0xC72072C6(3340792518),
sa_trans= esp-aes esp-sha-hmac , sa_conn_id= 8
sa_lifetime(k/sec)= (4608000/3600)
在两个阶段中，互联网安全关联和密钥管理协议(ISAKMP)和IPSec都处于启用状态。
Cisco IOS:检查IPSec计数器
R1#show crypto session detail
Crypto session current status
Code: C - IKE Configuration mode, D - Dead Peer Detection
K - Keepalives, N - NAT-traversal, T - cTCP encapsulation
X - IKE Extended Authentication, F - IKE Fragmentation
Interface: Ethernet0/0
Uptime: 00:00:05
Session status: UP-ACTIVE
Peer: 172.16.10.2 port 500 fvrf: (none) ivrf: (none)
Phase1_id: 172.16.10.2
Desc: (none)
IKEv1 SA: local 172.16.10.1/500 remote 172.16.10.2/500 Active
Capabilities:(none) connid:1003 lifetime:23:59:54
IPSEC FLOW: permit ip 192.168.1.0/255.255.255.0 192.168.2.0/255.255.255.0
Active SAs: 2, origin: crypto map
Inbound: #pkts dec'ed 0 drop 0 life (KB/Sec) 4164218/3594
Outbound: #pkts enc'ed 0 drop 0 life (KB/Sec) 4164218/3594A
发送100个数据包后：
R1#ping 192.168.2.1 source e0/1 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.1
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 4/4/5 ms
R1#
R1#show crypto session detail
Crypto session current status
Code: C - IKE Configuration mode, D - Dead Peer Detection
K - Keepalives, N - NAT-traversal, T - cTCP encapsulation
X - IKE Extended Authentication, F - IKE Fragmentation
Interface: Ethernet0/0
Uptime: 00:00:09
Session status: UP-ACTIVE
Peer: 172.16.10.2 port 500 fvrf: (none) ivrf: (none)
Phase1_id: 172.16.10.2
Desc: (none)
IKEv1 SA: local 172.16.10.1/500 remote 172.16.10.2/500 Active
Capabilities:(none) connid:1003 lifetime:23:59:50
IPSEC FLOW: permit ip 192.168.1.0/255.255.255.0 192.168.2.0/255.255.255.0
Active SAs: 2, origin: crypto map
Inbound: #pkts dec'ed 100 drop 0 life (KB/Sec) 4164202/3590
Outbound: #pkts enc'ed 100 drop 0 life (KB/Sec) 4164202/3590
Cisco IOS:检验IKEv1和IPSec参数
R1#show crypto isakmp sa detail
Codes: C - IKE configuration mode, D - Dead Peer Detection
K - Keepalives, N - NAT-traversal
T - cTCP encapsulation, X - IKE Extended Authentication
psk - Preshared key, rsig - RSA signature
renc - RSA encryption
IPv4 Crypto ISAKMP SA
C-id Local Remote I-VRF Status Encr Hash Auth DH Lifetime Cap.
1003 172.16.10.1 172.16.10.2 ACTIVE aes sha psk 5 23:59:35
Engine-id:Conn-id = SW:3
R1#show crypto ipsec sa
interface: Ethernet0/0
Crypto map tag: cmap, local addr 172.16.10.1
protected vrf: (none)
local ident (addr/mask/prot/port): (192.168.1.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (192.168.2.0/255.255.255.0/0/0)
current_peer 172.16.10.2 port 500
PERMIT, flags={origin_is_acl,}
#pkts encaps: 100, #pkts encrypt: 100, #pkts digest: 100
#pkts decaps: 100, #pkts decrypt: 100, #pkts verify: 100
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 0, #pkts compr. failed: 0
#pkts not decompressed: 0, #pkts decompress failed: 0
#send errors 0, #recv errors 0
local crypto endpt.: 172.16.10.1, remote crypto endpt.: 172.16.10.2
plaintext mtu 1438, path mtu 1500, ip mtu 1500, ip mtu idb Ethernet0/0
current outbound spi: 0xC72072C6(3340792518)
PFS (Y/N): N, DH group: none
inbound esp sas:
spi: 0x4C0D0EF0(1275924208)
transform: esp-aes esp-sha-hmac ,
in use settings ={Tunnel, }
conn id: 7, flow_id: SW:7, sibling_flags 80000040, crypto map: cmap
sa timing: remaining key lifetime (k/sec): (4164202/3562)
IV size: 16 bytes
replay detection support: Y
Status: ACTIVE(ACTIVE)
inbound ah sas:
inbound pcp sas:
outbound esp sas:
spi: 0xC72072C6(3340792518)
transform: esp-aes esp-sha-hmac ,
in use settings ={Tunnel, }
conn id: 8, flow_id: SW:8, sibling_flags 80000040, crypto map: cmap
sa timing: remaining key lifetime (k/sec): (4164202/3562)
IV size: 16 bytes
replay detection support: Y
Status: ACTIVE(ACTIVE)
outbound ah sas:
outbound pcp sas:
这两个阶段都已启动。IPSec安全参数索引(SPI)已协商。发送100个数据包后，计数器已增加到100。
strongSwan:隧道建立
pluton# /etc/init.d/ipsec start
May 24 20:02:48 localhost charon: 10[NET] received packet: from 172.16.10.1[500]
to 172.16.10.2[500] (168 bytes)
May 24 20:02:48 localhost charon: 10[ENC] parsed ID_PROT request 0 [ SA V V V V ]
May 24 20:02:48 localhost charon: 10[IKE] received NAT-T (RFC 3947) vendor ID
May 24 20:02:48 localhost charon: 10[IKE] received draft-ietf-ipsec-nat-t-ike-07
vendor ID
May 24 20:02:48 localhost charon: 10[IKE] received draft-ietf-ipsec-nat-t-ike-03
vendor ID
May 24 20:02:48 localhost charon: 10[IKE] received draft-ietf-ipsec-nat-t-ike-02\n
vendor ID
May 24 20:02:48 localhost charon: 10[IKE] 172.16.10.1 is initiating a Main Mode IKE_SA
May 24 20:02:48 localhost charon: 10[IKE] 172.16.10.1 is initiating a Main Mode IKE_SA
May 24 20:02:48 localhost charon: 10[ENC] generating ID_PROT response 0 [ SA V V V ]
May 24 20:02:48 localhost charon: 10[NET] sending packet: from 172.16.10.2[500] to
172.16.10.1[500] (140 bytes)
May 24 20:02:48 localhost charon: 11[NET] received packet: from 172.16.10.1[500] to
172.16.10.2[500] (348 bytes)
May 24 20:02:48 localhost charon: 11[ENC] parsed ID_PROT request 0
[ KE No V V V NAT-D NAT-D ]
May 24 20:02:48 localhost charon: 11[ENC] generating ID_PROT response 0
[ KE No NAT-D NAT-D ]
May 24 20:02:48 localhost charon: 11[NET] sending packet: from 172.16.10.2[500]
to 172.16.10.1[500] (308 bytes)
May 24 20:02:48 localhost charon: 12[NET] received packet: from 172.16.10.1[500]
to 172.16.10.2[500] (108 bytes)
May 24 20:02:48 localhost charon: 12[ENC] parsed ID_PROT request 0
[ ID HASH N(INITIAL_CONTACT) ]
May 24 20:02:48 localhost charon: 12[CFG] looking for pre-shared key peer configs
matching 172.16.10.2...172.16.10.1[172.16.10.1]
May 24 20:02:48 localhost charon: 12[CFG] selected peer config "ciscoios"
May 24 20:02:48 localhost charon: 12[IKE] IKE_SA ciscoios[2] established between
172.16.10.2[172.16.10.2]...172.16.10.1[172.16.10.1]
May 24 20:02:48 localhost charon: 12[IKE] IKE_SA ciscoios[2] established between
172.16.10.2[172.16.10.2]...172.16.10.1[172.16.10.1]
May 24 20:02:48 localhost charon: 12[IKE] scheduling reauthentication in 3289s
May 24 20:02:48 localhost charon: 12[IKE] maximum IKE_SA lifetime 3469s
May 24 20:02:48 localhost charon: 12[ENC] generating ID_PROT response 0 [ ID HASH ]
May 24 20:02:48 localhost charon: 12[NET] sending packet: from 172.16.10.2[500] to
172.16.10.1[500] (76 bytes)
May 24 20:02:48 localhost charon: 14[NET] received packet: from 172.16.10.1[500] to
172.16.10.2[500] (188 bytes)
May 24 20:02:48 localhost charon: 14[ENC] parsed QUICK_MODE request 2605730229
[ HASH SA No ID ID ]
May 24 20:02:48 localhost charon: 14[IKE] received 3600s lifetime, configured 1200s
May 24 20:02:48 localhost charon: 14[IKE] received 4608000000 lifebytes, configured 0
May 24 20:02:48 localhost charon: 14[ENC] generating QUICK_MODE response 2605730229
[ HASH SA No ID ID ]
May 24 20:02:48 localhost charon: 14[NET] sending packet: from 172.16.10.2[500] to
172.16.10.1[500] (188 bytes)
May 24 20:02:48 localhost charon: 15[NET] received packet: from 172.16.10.1[500] to
172.16.10.2[500] (60 bytes)
May 24 20:02:48 localhost charon: 15[ENC] parsed QUICK_MODE request 2605730229 [ HASH ]
May 24 20:02:48 localhost charon: 15[IKE] CHILD_SA ciscoios{2} established with SPIs
c72072c6_i 4c0d0ef0_o and TS 192.168.2.0/24 === 192.168.1.0/24
May 24 20:02:48 localhost charon: 15[IKE] CHILD_SA ciscoios{2} established with SPIs
c72072c6_i 4c0d0ef0_o and TS 192.168.2.0/24 === 192.168.1.0/24
May 24 20:02:48 localhost vpn: + 172.16.10.1 192.168.1.0/24 == 172.16.10.1 --
172.16.10.2 == 192.168.2.0/24
这两个阶段都已启动。协商保护192.168.2.0/24和192.168.1.0/24之间流量的正确SPI。
strongSwan:验证IPSec连接状态
pluton ~ # ipsec statusall
Status of IKE charon daemon (strongSwan 5.0.4, Linux 3.2.12-gentoo, x86_64):
uptime: 4 minutes, since May 24 20:02:15 2013
malloc: sbrk 393216, mmap 0, used 274064, free 119152
worker threads: 8 of 16 idle, 7/1/0/0 working, job queue: 0/0/0/0, scheduled: 4
loaded plugins: charon mysql sqlite aes des sha1 sha2 md5 random nonce x509
revocation constraints pubkey pkcs1 pkcs8 pgp dnskey pem openssl gcrypt fips-prf
gmp xcbc cmac hmac attr kernel-netlink resolve socket-default stroke updown
eap-identity eap-sim eap-aka eap-aka-3gpp2 eap-simaka-pseudonym eap-simaka-reauth
eap-md5 eap-gtc eap-mschapv2 eap-radius xauth-generic
Listening IP addresses:
10.0.0.100
192.168.10.1
172.16.10.2
192.168.2.1
Connections:
ciscoios: 172.16.10.2...172.16.10.1 IKEv1
ciscoios: local: [172.16.10.2] uses pre-shared key authentication
ciscoios: remote: [172.16.10.1] uses pre-shared key authentication
ciscoios: child: 192.168.2.0/24 === 192.168.1.0/24 TUNNEL
Security Associations (1 up, 0 connecting):
ciscoios[2]: ESTABLISHED 4 minutes ago, 172.16.10.2[172.16.10.2]...
172.16.10.1[172.16.10.1]
ciscoios[2]: IKEv1 SPIs: 278f22e3c3e5f606_i dbb5a27f3e0eccd1_r*,
pre-shared key reauthentication in 50 minutes
ciscoios[2]: IKE proposal: AES_CBC_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1536
ciscoios{2}: INSTALLED, TUNNEL, ESP SPIs: c72072c6_i 4c0d0ef0_o
ciscoios{2}: AES_CBC_128/HMAC_SHA1_96, 10000 bytes_i (100 pkts, 255s ago),
10000 bytes_o (100 pkts, 255s ago), rekeying in 11 minutes
ciscoios{2}: 192.168.2.0/24 === 192.168.1.0/24
有关协商的ISAKMP和IPSec参数的详细信息可用。
strongSwan:验证IPSec策略
pluton ~ # ip -s xfrm policy
src 192.168.1.0/24 dst 192.168.2.0/24 uid 0
dir fwd action allow index 258 priority 1859 share any flag (0x00000000)
lifetime config:
limit: soft (INF)(bytes), hard (INF)(bytes)
limit: soft (INF)(packets), hard (INF)(packets)
expire add: soft 0(sec), hard 0(sec)
expire use: soft 0(sec), hard 0(sec)
lifetime current:
0(bytes), 0(packets)
add 2013-05-24 20:02:48 use -
tmpl src 172.16.10.1 dst 172.16.10.2
proto esp spi 0x00000000(0) reqid 2(0x00000002) mode tunnel
level required share any
enc-mask ffffffff auth-mask ffffffff comp-mask ffffffff
src 192.168.1.0/24 dst 192.168.2.0/24 uid 0
dir in action allow index 248 priority 1859 share any flag (0x00000000)
lifetime config:
limit: soft (INF)(bytes), hard (INF)(bytes)
limit: soft (INF)(packets), hard (INF)(packets)
expire add: soft 0(sec), hard 0(sec)
expire use: soft 0(sec), hard 0(sec)
lifetime current:
0(bytes), 0(packets)
add 2013-05-24 20:02:48 use 2013-05-24 20:02:56
tmpl src 172.16.10.1 dst 172.16.10.2
proto esp spi 0x00000000(0) reqid 2(0x00000002) mode tunnel
level required share any
enc-mask ffffffff auth-mask ffffffff comp-mask ffffffff
src 192.168.2.0/24 dst 192.168.1.0/24 uid 0
dir out action allow index 241 priority 1859 share any flag (0x00000000)
lifetime config:
limit: soft (INF)(bytes), hard (INF)(bytes)
limit: soft (INF)(packets), hard (INF)(packets)
expire add: soft 0(sec), hard 0(sec)
expire use: soft 0(sec), hard 0(sec)
lifetime current:
0(bytes), 0(packets)
add 2013-05-24 20:02:48 use 2013-05-24 20:02:56
tmpl src 172.16.10.2 dst 172.16.10.1
proto esp spi 0x00000000(0) reqid 2(0x00000002) mode tunnel
level required share any
enc-mask ffffffff auth-mask ffffffff comp-mask ffffffff
以前的详细信息包括内部策略表。
Cisco IOS与StrongSwan之间的IKEv2
Cisco IOS
R1#ping 192.168.2.1 source e0/1 repeat 1
Cisco IOS触发的隧道建立
*May 24 19:14:10.485: IPSEC(sa_request): ,
(key eng. msg.) OUTBOUND local= 172.16.10.1:500, remote= 172.16.10.2:500,
local_proxy= 192.168.1.0/255.255.255.0/256/0,
remote_proxy= 192.168.2.0/255.255.255.0/256/0,
protocol= ESP, transform= esp-aes esp-sha-hmac (Tunnel),
lifedur= 3600s and 4608000kb,
spi= 0x0(0), conn_id= 0, keysize= 128, flags= 0x0
*May 24 19:14:10.486: IKEv2:% Getting preshared key from profile keyring keys
*May 24 19:14:10.486: IKEv2:% Matched peer block 'strongswan'
*May 24 19:14:10.486: IKEv2:Searching Policy with fvrf 0, local address 172.16.10.1
*May 24 19:14:10.486: IKEv2:Found Policy 'ikev2policy'
*May 24 19:14:10.486: IKEv2:(SA ID = 1):[IKEv2 -> Crypto Engine] Computing DH public
key, DH Group 5
*May 24 19:14:10.486: IKEv2:(SA ID = 1):[Crypto Engine -> IKEv2] DH key Computation
PASSED
*May 24 19:14:10.486: IKEv2:(SA ID = 1):Request queued for computation of DH key
*May 24 19:14:10.486: IKEv2:IKEv2 initiator - no config data to send in IKE_SA_INIT exch
*May 24 19:14:10.486: IKEv2:(SA ID = 1):Generating IKE_SA_INIT message
*May 24 19:14:10.486: IKEv2:(SA ID = 1):IKE Proposal: 1, SPI size: 0
(initial negotiation),
Num. transforms: 4
AES-CBC SHA1 SHA96 DH_GROUP_1536_MODP/Group 5
*May 24 19:14:10.486: IKEv2:(SA ID = 1):Sending Packet [To 172.16.10.2:500/From
172.16.10.1:500/VRF i0:f0]
Initiator SPI : 9FFC38791FFEF212 - Responder SPI : 0000000000000000 Message id: 0
IKEv2 IKE_SA_INIT Exchange REQUEST
Payload contents:
SA KE N VID VID NOTIFY(NAT_DETECTION_SOURCE_IP) NOTIFY(NAT_DETECTION_DESTINATION_IP)
*May 24 19:14:10.486: IKEv2:(SA ID = 1):Insert SA
*May 24 19:14:10.495: IKEv2:(SA ID = 1):Received Packet [From 172.16.10.2:500/To
172.16.10.1:500/VRF i0:f0]
Initiator SPI : 9FFC38791FFEF212 - Responder SPI : 6CDC17F5B0B10C1A Message id: 0
IKEv2 IKE_SA_INIT Exchange RESPONSE
Payload contents:
SA KE N NOTIFY(NAT_DETECTION_SOURCE_IP) NOTIFY(NAT_DETECTION_DESTINATION_IP)
NOTIFY(Unknown - 16404)
*May 24 19:14:10.495: IKEv2:(SA ID = 1):Processing IKE_SA_INIT message
*May 24 19:14:10.495: IKEv2:(SA ID = 1):Verify SA init message
*May 24 19:14:10.495: IKEv2:(SA ID = 1):Processing IKE_SA_INIT message
*May 24 19:14:10.495: IKEv2:(SA ID = 1):Checking NAT discovery
*May 24 19:14:10.495: IKEv2:(SA ID = 1):NAT not found
*May 24 19:14:10.495: IKEv2:(SA ID = 1):[IKEv2 -> Crypto Engine] Computing DH
secret key, DH Group 5
*May 24 19:14:10.504: IKEv2:(SA ID = 1):[Crypto Engine -> IKEv2] DH key Computation
PASSED
*May 24 19:14:10.504: IKEv2:(SA ID = 1):Request queued for computation of DH secret
*May 24 19:14:10.504: IKEv2:(SA ID = 1):[IKEv2 -> Crypto Engine] Calculate SKEYSEED
and create rekeyed IKEv2 SA
*May 24 19:14:10.504: IKEv2:(SA ID = 1):[Crypto Engine -> IKEv2] SKEYSEED
calculation and creation of
rekeyed IKEv2 SA PASSED
*May 24 19:14:10.504: IKEv2:(SA ID = 1):Completed SA init exchange
*May 24 19:14:10.504: IKEv2:(SA ID = 1):Check for EAP exchange
*May 24 19:14:10.504: IKEv2:(SA ID = 1):Generate my authentication data
*May 24 19:14:10.504: IKEv2:(SA ID = 1):Use preshared key for id 172.16.10.1,
key len 5
*May 24 19:14:10.504: IKEv2:[IKEv2 -> Crypto Engine] Generate IKEv2 authentication
data
*May 24 19:14:10.504: IKEv2:[Crypto Engine -> IKEv2] IKEv2 authentication data
generation PASSED
*May 24 19:14:10.504: IKEv2:(SA ID = 1):Get my authentication method
*May 24 19:14:10.504: IKEv2:(SA ID = 1):My authentication method is 'PSK'
*May 24 19:14:10.504: IKEv2:(SA ID = 1):Check for EAP exchange
*May 24 19:14:10.504: IKEv2:(SA ID = 1):Generating IKE_AUTH message
*May 24 19:14:10.504: IKEv2:(SA ID = 1):Constructing IDi payload: '172.16.10.1'
of type 'IPv4 address'
*May 24 19:14:10.504: IKEv2:(SA ID = 1):ESP Proposal: 1, SPI size: 4
(IPSec negotiation),
Num. transforms: 3
AES-CBC SHA96 Don't use ESN
*May 24 19:14:10.504: IKEv2:(SA ID = 1):Building packet for encryption.
Payload contents:
VID IDi AUTH SA TSi TSr NOTIFY(INITIAL_CONTACT) NOTIFY(SET_WINDOW_SIZE)
NOTIFY(ESP_TFC_NO_SUPPORT) NOTIFY(NON_FIRST_FRAGS)
*May 24 19:14:10.505: IKEv2:(SA ID = 1):Sending Packet
[To 172.16.10.2:500/From 172.16.10.1:500/VRF i0:f0]
Initiator SPI : 9FFC38791FFEF212 - Responder SPI : 6CDC17F5B0B10C1A Message id: 1
IKEv2 IKE_AUTH Exchange REQUEST
Payload contents:
ENCR
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Received Packet
[From 172.16.10.2:500/To 172.16.10.1:500/VRF i0:f0]
Initiator SPI : 9FFC38791FFEF212 - Responder SPI : 6CDC17F5B0B10C1A Message id: 1
IKEv2 IKE_AUTH Exchange RESPONSE
Payload contents:
IDr AUTH SA TSi TSr NOTIFY(Unknown - 16403)
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Process auth response notify
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Searching policy based on peer's
identity '172.16.10.2' of type 'IPv4 address'
*May 24 19:14:10.522: IKEv2:Searching Policy with fvrf 0, local address 172.16.10.1
*May 24 19:14:10.522: IKEv2:Found Policy 'ikev2policy'
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Verify peer's policy
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Peer's policy verified
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Get peer's authentication method
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Peer's authentication method is 'PSK'
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Get peer's preshared key for 172.16.10.2
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Verify peer's authentication data
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Use preshared key for id 172.16.10.2, key len 5
*May 24 19:14:10.522: IKEv2:[IKEv2 -> Crypto Engine] Generate IKEv2 authentication data
*May 24 19:14:10.522: IKEv2:[Crypto Engine -> IKEv2] IKEv2 authentication data
generation PASSED
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Verification of peer's authenctication data
PASSED
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Check for EAP exchange
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Processing IKE_AUTH message
*May 24 19:14:10.522: IKEv2:KMI/verify policy/sending to IPSec:
prot: 3 txfm: 12 hmac 2 flags 8177 keysize 128 IDB 0x0
*May 24 19:14:10.522: IPSEC(validate_proposal_request): proposal part #1
*May 24 19:14:10.522: IPSEC(validate_proposal_request): proposal part #1,
(key eng. msg.) INBOUND local= 172.16.10.1:0, remote= 172.16.10.2:0,
local_proxy= 192.168.1.0/255.255.255.0/256/0,
remote_proxy= 192.168.2.0/255.255.255.0/256/0,
protocol= ESP, transform= NONE (Tunnel),
lifedur= 0s and 0kb,
spi= 0x0(0), conn_id= 0, keysize= 128, flags= 0x0
*May 24 19:14:10.522: Crypto mapdb : proxy_match
src addr : 192.168.1.0
dst addr : 192.168.2.0
protocol : 0
src port : 0
dst port : 0
*May 24 19:14:10.522: IKEv2:(SA ID = 1):IKEV2 SA created; inserting SA into database.
SA lifetime timer (86400 sec) started
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Session with IKE ID PAIR
(172.16.10.2, 172.16.10.1) is UP
*May 24 19:14:10.522: IKEv2:IKEv2 MIB tunnel started, tunnel index 1
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Load IPSEC key material
*May 24 19:14:10.522: IKEv2:(SA ID = 1):[IKEv2 -> IPsec] Create IPsec SA into
IPsec database
*May 24 19:14:10.522: IKEv2:(SA ID = 1):Asynchronous request queued
*May 24 19:14:10.522: IKEv2:(SA ID = 1):
*May 24 19:14:10.523: IPSEC(key_engine): got a queue event with 1 KMI message(s)
*May 24 19:14:10.523: Crypto mapdb : proxy_match
src addr : 192.168.1.0
dst addr : 192.168.2.0
protocol : 256
src port : 0
dst port : 0
*May 24 19:14:10.523: IPSEC(crypto_ipsec_create_ipsec_sas): Map found cmap
*May 24 19:14:10.523: IPSEC(crypto_ipsec_sa_find_ident_head): reconnecting with
the same proxies and peer 172.16.10.2
*May 24 19:14:10.523: IPSEC(create_sa): sa created,
(sa) sa_dest= 172.16.10.1, sa_proto= 50,
sa_spi= 0xDF405365(3745534821),
sa_trans= esp-aes esp-sha-hmac , sa_conn_id= 6
sa_lifetime(k/sec)= (4608000/3600)
*May 24 19:14:10.523: IPSEC(create_sa): sa created,
(sa) sa_dest= 172.16.10.2, sa_proto= 50,
sa_spi= 0xC0CC116C(3234599276),
sa_trans= esp-aes esp-sha-hmac , sa_conn_id= 5
sa_lifetime(k/sec)= (4608000/3600)
*May 24 19:14:10.523: IPSEC: Expand action denied, notify RP
*May 24 19:14:10.523: IKEv2:(SA ID = 1):[IPsec -> IKEv2] Creation of IPsec
SA into IPsec database PASSED
IKEv2会话已打开，并且已创建保护192.168.1.0/24和192.168.2.0/24之间流量的IPSec SA。
Cisco IOS:检查IPSec计数器
R1#show crypto session detail
Crypto session current status
Code: C - IKE Configuration mode, D - Dead Peer Detection
K - Keepalives, N - NAT-traversal, T - cTCP encapsulation
X - IKE Extended Authentication, F - IKE Fragmentation
Interface: Ethernet0/0
Uptime: 00:00:09
Session status: UP-ACTIVE
Peer: 172.16.10.2 port 500 fvrf: (none) ivrf: (none)
Phase1_id: 172.16.10.2
Desc: (none)
IKEv2 SA: local 172.16.10.1/500 remote 172.16.10.2/500 Active
Capabilities:(none) connid:1 lifetime:23:59:51
IPSEC FLOW: permit ip 192.168.1.0/255.255.255.0 192.168.2.0/255.255.255.0
Active SAs: 2, origin: crypto map
Inbound: #pkts dec'ed 0 drop 0 life (KB/Sec) 4375820/3590
Outbound: #pkts enc'ed 0 drop 0 life (KB/Sec) 4375820/3590
发送100个数据包后：
R1#ping 192.168.2.1 source 192.168.1.1 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.1
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 1/4/5 ms
R1#
R1#show crypto session detail
Crypto session current status
Code: C - IKE Configuration mode, D - Dead Peer Detection
K - Keepalives, N - NAT-traversal, T - cTCP encapsulation
X - IKE Extended Authentication, F - IKE Fragmentation
Interface: Ethernet0/0
Uptime: 00:00:15
Session status: UP-ACTIVE
Peer: 172.16.10.2 port 500 fvrf: (none) ivrf: (none)
Phase1_id: 172.16.10.2
Desc: (none)
IKEv2 SA: local 172.16.10.1/500 remote 172.16.10.2/500 Active
Capabilities:(none) connid:1 lifetime:23:59:45
IPSEC FLOW: permit ip 192.168.1.0/255.255.255.0 192.168.2.0/255.255.255.0
Active SAs: 2, origin: crypto map
Inbound: #pkts dec'ed 100 drop 0 life (KB/Sec) 4375803/3585
Outbound: #pkts enc'ed 100 drop 0 life (KB/Sec) 4375803/3585
计数器增加了100。
Cisco IOS:检验IKEv2和IPSec参数
Cisco IOS对IKEv2会话的统计信息/详细信息非常好：
R1#show crypto ikev2 sa detailed
IPv4 Crypto IKEv2 SA
Tunnel-id Local Remote fvrf/ivrf Status
1 172.16.10.1/500 172.16.10.2/500 none/none READY
Encr: AES-CBC, keysize: 128, Hash: SHA96, DH Grp:5, Auth sign: PSK, Auth verify: PSK
Life/Active Time: 86400/152 sec
CE id: 1019, Session-id: 3
Status Description: Negotiation done
Local spi: 9FFC38791FFEF212 Remote spi: 6CDC17F5B0B10C1A
Local id: 172.16.10.1
Remote id: 172.16.10.2
Local req msg id: 2 Remote req msg id: 0
Local next msg id: 2 Remote next msg id: 0
Local req queued: 2 Remote req queued: 0
Local window: 5 Remote window: 1
DPD configured for 0 seconds, retry 0
Fragmentation not configured.
Extended Authentication not configured.
NAT-T is not detected
Cisco Trust Security SGT is disabled
Initiator of SA : Yes
IPv6 Crypto IKEv2 SA
R1#show crypto ipsec sa
interface: Ethernet0/0
Crypto map tag: cmap, local addr 172.16.10.1
protected vrf: (none)
local ident (addr/mask/prot/port): (192.168.1.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (192.168.2.0/255.255.255.0/0/0)
current_peer 172.16.10.2 port 500
PERMIT, flags={origin_is_acl,}
#pkts encaps: 100, #pkts encrypt: 100, #pkts digest: 100
#pkts decaps: 100, #pkts decrypt: 100, #pkts verify: 100
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 0, #pkts compr. failed: 0
#pkts not decompressed: 0, #pkts decompress failed: 0
#send errors 0, #recv errors 0
local crypto endpt.: 172.16.10.1, remote crypto endpt.: 172.16.10.2
plaintext mtu 1438, path mtu 1500, ip mtu 1500, ip mtu idb Ethernet0/0
current outbound spi: 0xC0CC116C(3234599276)
PFS (Y/N): N, DH group: none
inbound esp sas:
spi: 0xDF405365(3745534821)
transform: esp-aes esp-sha-hmac ,
in use settings ={Tunnel, }
conn id: 6, flow_id: SW:6, sibling_flags 80000040, crypto map: cmap
sa timing: remaining key lifetime (k/sec): (4375803/3442)
IV size: 16 bytes
replay detection support: Y
Status: ACTIVE(ACTIVE)
inbound ah sas:
inbound pcp sas:
outbound esp sas:
spi: 0xC0CC116C(3234599276)
transform: esp-aes esp-sha-hmac ,
in use settings ={Tunnel, }
conn id: 5, flow_id: SW:5, sibling_flags 80000040, crypto map: cmap
sa timing: remaining key lifetime (k/sec): (4375803/3442)
IV size: 16 bytes
replay detection support: Y
Status: ACTIVE(ACTIVE)
outbound ah sas:
outbound pcp sas:
strongSwan:隧道建立
May 24 21:14:10 localhost charon: 08[NET] received packet: from 172.16.10.1[500]
to 172.16.10.2[500] (400 bytes)
May 24 21:14:10 localhost charon: 08[ENC] parsed IKE_SA_INIT request 0
[ SA KE No V V N(NATD_S_IP) N(NATD_D_IP) ]
May 24 21:14:10 localhost charon: 08[ENC] received unknown vendor
ID: 43:49:53:43:4f:2d:44:45:4c:45:54:45:2d:52:45:41:53:4f:4e
May 24 21:14:10 localhost charon: 08[ENC] received unknown vendor ID:
46:4c:45:58:56:50:4e:2d:53:55:50:50:4f:52:54:45:44
May 24 21:14:10 localhost charon: 08[IKE] 172.16.10.1 is initiating an IKE_SA
May 24 21:14:10 localhost charon: 08[IKE] 172.16.10.1 is initiating an IKE_SA
May 24 21:14:10 localhost charon: 08[ENC] generating IKE_SA_INIT response 0
[ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(MULT_AUTH) ]
May 24 21:14:10 localhost charon: 08[NET] sending packet: from 172.16.10.2[500]
to 172.16.10.1[500] (376 bytes)
May 24 21:14:10 localhost charon: 07[NET] received packet: from 172.16.10.1[500]
to 172.16.10.2[500] (284 bytes)
May 24 21:14:10 localhost charon: 07[ENC] parsed IKE_AUTH request 1 [ V IDi AUTH
SA TSi TSr N(INIT_CONTACT) N(SET_WINSIZE) N(ESP_TFC_PAD_N) N(NON_FIRST_FRAG) ]
May 24 21:14:10 localhost charon: 07[CFG] looking for peer configs matching
172.16.10.2[%any]...172.16.10.1[172.16.10.1]
May 24 21:14:10 localhost charon: 07[CFG] selected peer config 'ciscoios'
May 24 21:14:10 localhost charon: 07[IKE] authentication of '172.16.10.1' with
pre-shared key successful
May 24 21:14:10 localhost charon: 07[IKE] received ESP_TFC_PADDING_NOT_SUPPORTED,
not using ESPv3 TFC padding
May 24 21:14:10 localhost charon: 07[IKE] authentication of '172.16.10.2' (myself)
with pre-shared key
May 24 21:14:10 localhost charon: 07[IKE] IKE_SA ciscoios[2] established between
172.16.10.2[172.16.10.2]...172.16.10.1[172.16.10.1]
May 24 21:14:10 localhost charon: 07[IKE] IKE_SA ciscoios[2] established between
172.16.10.2[172.16.10.2]...172.16.10.1[172.16.10.1]
May 24 21:14:10 localhost charon: 07[IKE] scheduling reauthentication in 3247s
May 24 21:14:10 localhost charon: 07[IKE] maximum IKE_SA lifetime 3427s
May 24 21:14:10 localhost charon: 07[IKE] CHILD_SA ciscoios{2} established with
SPIs c0cc116c_i df405365_o and TS 192.168.2.0/24 === 192.168.1.0/24
May 24 21:14:10 localhost charon: 07[IKE] CHILD_SA ciscoios{2} established with
SPIs c0cc116c_i df405365_o and TS 192.168.2.0/24 === 192.168.1.0/24
May 24 21:14:10 localhost vpn: + 172.16.10.1 192.168.1.0/24 == 172.16.10.1 --
172.16.10.2 == 192.168.2.0/24
隧道建立详细信息与IKEv1有点相似。
strongSwan:验证IPSec连接状态
pluton ~ # ipsec statusall
Status of IKE charon daemon (strongSwan 5.0.4, Linux 3.2.12-gentoo, x86_64):
uptime: 2 minutes, since May 24 21:13:27 2013
malloc: sbrk 393216, mmap 0, used 274864, free 118352
worker threads: 8 of 16 idle, 7/1/0/0 working, job queue: 0/0/0/0, scheduled: 4
loaded plugins: charon mysql sqlite aes des sha1 sha2 md5 random nonce x509
revocation constraints pubkey pkcs1 pkcs8 pgp dnskey pem openssl gcrypt
fips-prf gmp xcbc cmac hmac attr kernel-netlink resolve socket-default
stroke updown eap-identity eap-sim eap-aka eap-aka-3gpp2 eap-simaka-pseudonym
eap-simaka-reauth eap-md5 eap-gtc eap-mschapv2 eap-radius xauth-generic
Listening IP addresses:
10.0.0.100
192.168.10.1
192.168.2.1
172.16.10.2
Connections:
ciscoios: 172.16.10.2...172.16.10.1 IKEv2
ciscoios: local: [172.16.10.2] uses pre-shared key authentication
ciscoios: remote: [172.16.10.1] uses pre-shared key authentication
ciscoios: child: 192.168.2.0/24 === 192.168.1.0/24 TUNNEL
Security Associations (1 up, 0 connecting):
ciscoios[2]: ESTABLISHED 116 seconds ago, 172.16.10.2[172.16.10.2]...
172.16.10.1[172.16.10.1]
ciscoios[2]: IKEv2 SPIs: 12f2fe1f7938fc9f_i 1a0cb1b0f517dc6c_r*,
pre-shared key reauthentication in 52 minutes
ciscoios[2]: IKE proposal: AES_CBC_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1536
ciscoios{2}: INSTALLED, TUNNEL, ESP SPIs: c0cc116c_i df405365_o
ciscoios{2}: AES_CBC_128/HMAC_SHA1_96, 10000 bytes_i (100 pkts, 102s ago),
10000 bytes_o (100 pkts, 102s ago), rekeying in 12 minutes
ciscoios{2}: 192.168.2.0/24 === 192.168.1.0/24
strongSwan:验证IPSec策略
pluton ~ # ip -s xfrm policy
src 192.168.1.0/24 dst 192.168.2.0/24 uid 0
dir fwd action allow index 1154 priority 1859 share any flag (0x00000000)
lifetime config:
limit: soft (INF)(bytes), hard (INF)(bytes)
limit: soft (INF)(packets), hard (INF)(packets)
expire add: soft 0(sec), hard 0(sec)
expire use: soft 0(sec), hard 0(sec)
lifetime current:
0(bytes), 0(packets)
add 2013-05-24 21:14:10 use -
tmpl src 172.16.10.1 dst 172.16.10.2
proto esp spi 0x00000000(0) reqid 2(0x00000002) mode tunnel
level required share any
enc-mask ffffffff auth-mask ffffffff comp-mask ffffffff
src 192.168.1.0/24 dst 192.168.2.0/24 uid 0
dir in action allow index 1144 priority 1859 share any flag (0x00000000)
lifetime config:
limit: soft (INF)(bytes), hard (INF)(bytes)
limit: soft (INF)(packets), hard (INF)(packets)
expire add: soft 0(sec), hard 0(sec)
expire use: soft 0(sec), hard 0(sec)
lifetime current:
0(bytes), 0(packets)
add 2013-05-24 21:14:10 use 2013-05-24 21:14:23
tmpl src 172.16.10.1 dst 172.16.10.2
proto esp spi 0x00000000(0) reqid 2(0x00000002) mode tunnel
level required share any
enc-mask ffffffff auth-mask ffffffff comp-mask ffffffff
src 192.168.2.0/24 dst 192.168.1.0/24 uid 0
dir out action allow index 1137 priority 1859 share any flag (0x00000000)
lifetime config:
limit: soft (INF)(bytes), hard (INF)(bytes)
limit: soft (INF)(packets), hard (INF)(packets)
expire add: soft 0(sec), hard 0(sec)
expire use: soft 0(sec), hard 0(sec)
lifetime current:
0(bytes), 0(packets)
add 2013-05-24 21:14:10 use 2013-05-24 21:14:23
tmpl src 172.16.10.2 dst 172.16.10.1
proto esp spi 0x00000000(0) reqid 2(0x00000002) mode tunnel
level required share any
enc-mask ffffffff auth-mask ffffffff comp-mask ffffffff
相关信息
修订历史记录
| 版本 | 发布日期 | 备注 |
|---|---|---|
1.0 |
27-Jan-2014 |
初始版本 |
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