Tunnel End-Point Discovery (TED) is een Cisco IOS®-softwarefunctie waarmee routers IP Security (IPsec)-endpoints automatisch kunnen detecteren. De implementatie van IPsec met Internet Key Exchange (IKE) vereist de configuratie van een cryptokaart voor elke peer die het eindpunt identificeert waarop een beveiligde tunnel moet worden gevestigd. Deze benadering is niet goed van pas gekomen als er veel collega's zijn waarvoor tunnels moeten worden gebouwd. Dynamische crypto-kaarten vereenvoudigen een dergelijk scenario door automatisch de IPsec-peer te bepalen. Dit werkt alleen op routers die IKE-aanvragen ontvangen. TED staat routers toe die IKE verzoeken in werking stellen en ontvangen om het IPsec tunneleindpunt dynamisch te ontdekken.
TED gebruikt een detectiesonde die een speciaal IKE-pakket is dat van de initiatiefnemende peer naar het doelnetwerk of de host wordt gestuurd waar het oorspronkelijke verkeer toe bestemd was. Aangezien TED-sondes de adressen van de beschermde entiteiten gebruiken, moeten de adressen wereldwijd routeerbaar zijn. TED werkt niet als er netwerkadresomzetting (NAT) bij betrokken is.
Voordat u deze configuratie uitvoert, moet aan de volgende vereisten worden voldaan:
Kennis en configuratie van IPsec zoals besproken in Een inleiding tot IP-beveiliging (IPSec) versleuteling
Dit voorbeeldnetwerk laat zien hoe het TED-proces werkt.
D1 verstuurt een gegevenspakket gericht op A1. SRC=D1 DST=A1
D ontvangt het, ziet dat het geen IPsec security associatie (SA) heeft ingesteld (maar het valt binnen het bereik van de toegangslijst), laat het pakket vallen en stuurt een TED-sonde pakket (om te vinden wie de remote peer is) gericht op A1, met het IP-adres van D ingebed in de payload.
SRC=D1
DST=A1
Data=IP_of_D
Het pakket van de TED-sonde komt aan bij A, dat het herkent als een pakket van de TED-sonde. Het pakket wordt verlaagd omdat elk verkeer tussen D1 en A1 versleuteld moet worden. Vervolgens wordt er een TED-antwoordpakket verzonden gericht op D met het IP-adres van A in de payload. Dit komt doordat D moet weten met welke router het IPsec SA moet opzetten, wat de reden is dat D oorspronkelijk het TED-probe pakket uitzond.
SRC=A
DST=D
Data=IP_of_A
Het TED-antwoordpakket komt aan op D. Aangezien D nu het IKE-eindpunt kent, kan het de tunnel naar A in hoofdmodus of in agressieve modus starten.
De informatie in dit document is gebaseerd op de volgende software- en hardware-versies.
Cisco IOS-softwarerelease 12.2(27)
Cisco 2600 routers
De informatie in dit document is gebaseerd op de apparaten in een specifieke laboratoriumomgeving. Alle apparaten die in dit document worden beschreven, hadden een opgeschoonde (standaard)configuratie. Als uw netwerk live is, moet u de potentiële impact van elke opdracht begrijpen.
Deze sectie bevat informatie over het configureren van de functies die in dit document worden beschreven.
Opmerking: Gebruik de Command Lookup Tool (alleen voor geregistreerde klanten) voor meer informatie over de opdrachten die in dit document worden gebruikt.
Het netwerk in dit document is als volgt opgebouwd:
Opmerking: Maak de tunnel tussen routers Daphne en Fred.
Dit document gebruikt de volgende configuraties:
Daphne-configuratie |
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Daphne#show running-config Building configuration... Current configuration : 1426 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname Daphne ! boot system flash c2600-jk9s-mz.122-27.bin enable password cisco ! memory-size iomem 10 ip subnet-zero ! ! no ip domain-lookup ! ! ! ! !--- Defines the IKE policy. While using TED, the peer !--- address associated with the pre-shared key should be defined as wildcard !--- in the IKE policy, to authenticate any discovered peer. crypto isakmp policy 10 authentication pre-share crypto isakmp key abc123 address 0.0.0.0 0.0.0.0 ! ! !--- Defines the transform to use for IPsec SAs. crypto ipsec transform-set ted-transforms esp-des esp-md5-hmac ! !--- Defines a dynamic crypto map to use for establishing IPsec SAs. crypto dynamic-map ted-map 10 set transform-set ted-transforms match address 101 ! ! !--- The 'discover' keyword used with the dynamic crypto map !--- enables peer discovery. crypto map tedtag 10 ipsec-isakmp dynamic ted-map discover ! ! interface FastEthernet0/0 ip address 11.11.11.1 255.255.255.0 duplex auto speed auto crypto map tedtag ! interface FastEthernet0/1 ip address 13.13.13.13 255.255.255.0 duplex auto speed auto ! ip classless ip route 0.0.0.0 0.0.0.0 11.11.11.2 ip http server ! ! ! !--- Defines the traffic to be encrypted using IPsec. access-list 101 permit ip 13.13.13.0 0.0.0.255 12.12.12.0 0.0.0.255 ! ! !--- Output is suppressed. ! ! line con 0 line aux 0 line vty 0 4 login ! end |
Fred-configuratie |
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fred#show running-config Building configuration... Current configuration : 1295 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname fred ! boot system flash c2600-jk9s-mz.122-27.bin ! memory-size iomem 10 ip subnet-zero ! ! ! ! ! ! !--- Defines the IKE policy. While using TED, the peer !--- address associated with the pre-shared key should be defined as wildcard !--- in the IKE policy, to authenticate any discovered peer. crypto isakmp policy 10 authentication pre-share crypto isakmp key abc123 address 0.0.0.0 0.0.0.0 ! ! !--- Defines the transform to use for IPsec SAs. crypto ipsec transform-set ted-transforms esp-des esp-md5-hmac ! !--- Defines a dynamic crypto map used to establish IPsec SAs. crypto dynamic-map ted-map 10 set transform-set ted-transforms match address 101 ! ! !--- The 'discover' keyword used with the dynamic crypto map !--- enables peer discovery. crypto map tedtag 10 ipsec-isakmp dynamic ted-map discover ! ! ! interface FastEthernet0/0 ip address 11.11.11.2 255.255.255.0 duplex auto speed auto crypto map tedtag ! interface FastEthernet0/1 ip address 12.12.12.12 255.255.255.0 duplex auto speed auto ! ip classless ip route 0.0.0.0 0.0.0.0 11.11.11.1 ip http server ! ! ! !--- Defines the traffic encrypted using IPsec. access-list 101 permit ip 12.12.12.0 0.0.0.255 13.13.13.0 0.0.0.255 ! ! !--- Output is suppressed. ! line con 0 line aux 0 line vty 0 4 login ! end |
Gebruik deze sectie om te controleren of uw configuratie goed werkt.
De Output Interpreter Tool (OIT) (alleen voor geregistreerde klanten) ondersteunt bepaalde opdrachten met show. Gebruik de OIT om een analyse te bekijken van de output van de opdracht show.
toon crypto isakmp sa-Toont de fase 1 veiligheidsverenigingen door de router IKE SA te tonen. De weergegeven staat is QM_IDLE voor een IKE SA om te worden beschouwd als up en functionerend.
toon crypto ipsec sa-Toont de fase 2 veiligheidsverenigingen door een gedetailleerde lijst van de actieve IPsec SAs van de router te tonen.
toon crypto kaart -Toont de crypto kaarten die op de router samen met zijn details zoals crypto toegangslijsten, transformatie reeksen, peers, enzovoort worden gevormd.
tonen crypto motorverbindingen actief -Toont een lijst van actieve SAs met hun bijbehorende interfaces, transformaties en tellers.
Deze sectie vangt de output van het showbevel op router Daphne, wanneer een ping bevel op de gastheer 13.13.13.4 wordt uitgevoerd die voor de gastheer 12.12.12.13 wordt bestemd. De uitgangen op de router Fred zijn ook vergelijkbaar. De belangrijkste parameters in de output worden vet aangegeven. Raadpleeg Problemen oplossen bij IP-beveiliging - Begrijpen en gebruiken van debug-opdrachten voor een toelichting op de opdrachtoutput.
Daphne#show crypto isakmp sa dst src state conn-id slot 11.11.11.2 11.11.11.1 QM_IDLE 2 0 Daphne#show crypto ipsec sa interface: FastEthernet0/0 Crypto map tag: tedtag, local addr. 11.11.11.1 protected vrf: local ident (addr/mask/prot/port): (13.13.13.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (12.12.12.0/255.255.255.0/0/0) current_peer: 11.11.11.2 PERMIT, flags={} #pkts encaps: 9, #pkts encrypt: 9, #pkts digest 9 #pkts decaps: 9, #pkts decrypt: 9, #pkts verify 9 #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.: 11.11.11.1, remote crypto endpt.: 11.11.11.2 path mtu 1500, media mtu 1500 current outbound spi: B326CBE6 inbound esp sas: spi: 0xD8870500(3632727296) transform: esp-des esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 2000, flow_id: 1, crypto map: tedtag sa timing: remaining key lifetime (k/sec): (4414715/2524) IV size: 8 bytes replay detection support: Y inbound ah sas: inbound pcp sas: outbound esp sas: spi: 0xB326CBE6(3005664230) transform: esp-des esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 2001, flow_id: 2, crypto map: tedtag sa timing: remaining key lifetime (k/sec): (4414715/2524) IV size: 8 bytes replay detection support: Y outbound ah sas: outbound pcp sas: Daphne#show crypto map Crypto Map "tedtag" 10 ipsec-isakmp Dynamic map template tag: ted-map Discover enabled Crypto Map "tedtag" 11 ipsec-isakmp Peer = 11.11.11.2 Extended IP access list access-list permit ip 13.13.13.0 0.0.0.255 12.12.12.0 0.0.0.255 dynamic (created from dynamic map ted-map/10) Current peer: 11.11.11.2 Security association lifetime: 4608000 kilobytes/3600 seconds PFS (Y/N): N Transform sets={ ted-transforms, } Interfaces using crypto map tedtag: FastEthernet0/0 Daphne#show crypto engine connections active ID Interface IP-Address State Algorithm Encrypt Decrypt 2 <none> <none> set HMAC_SHA+DES_56_CB 0 0 2000 FastEthernet0/0 11.11.11.1 set HMAC_MD5+DES_56_CB 0 9 2001 FastEthernet0/0 11.11.11.1 set HMAC_MD5+DES_56_CB 9 0
Deze sectie bevat informatie om uw configuratie te troubleshooten.
Opmerking: raadpleeg Belangrijke informatie over debug-opdrachten voordat u debug-opdrachten gebruikt.
debug crypto engine —Hier wordt informatie weergegeven over de crypto engine die het encryptie- en decryptie proces uitvoert.
debug crypto ipsec: toont de IPsec-onderhandelingen van fase 2.
debug crypto isakmp —Hier worden de IKE-onderhandelingen over fase 1 weergegeven.
Deze sectie vangt de debug opdrachtoutput op de routers die met IPsec zijn geconfigureerd op wanneer een ping-opdracht wordt uitgevoerd op de host 13.13.13.4 die voor de host 12.12.13.13 is bestemd.
Daphne#show debug Cryptographic Subsystem: Crypto ISAKMP debugging is on Crypto Engine debugging is on Crypto IPSEC debugging is on Daphne# !--- TED process begins here. *Mar 1 02:07:18.850: IPSEC(tunnel discover request): , (key eng. msg.) INBOUND local= 13.13.13.14, remote= 12.12.12.13, local_proxy= 13.13.13.0/255.255.255.0/0/0 (type=4), remote_proxy= 11.11.11.1/255.255.255.255/0/0 (type=1), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 3600s and 4608000kb, spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4004 dest=FastEthernet0 /0:11.11.11.2 *Mar 1 02:07:18.854: ISAKMP: received ke message (1/1) *Mar 1 02:07:18.854: ISAKMP: GOT A PEER DISCOVERY MESSAGE FROM THE SA MANAGER!!! *Mar 1 02:07:18.854: src = 13.13.13.14 to 12.12.12.13, protocol 3, transform 2, hmac 1 *Mar 1 02:07:18.854: proxy source is 13.13.13.0/255.255.255.0 and my address (not used now) is 11.11.11.1 !--- IKE uses UDP port 500. *Mar 1 02:07:18.854: ISAKMP: local port 500, remote port 500 *Mar 1 02:07:18.858: ISAKMP (0:1): no idb in request *Mar 1 02:07:18.858: ISAKMP (1): ID payload next-payload : 5 type : 1 protocol : 17 port : 500 length : 8 *Mar 1 02:07:18.858: ISAKMP (1): Total payload length: 12 *Mar 1 02:07:18.858: 1st ID is 11.11.11.1 *Mar 1 02:07:18.862: 2nd ID is 13.13.13.0/255.255.255.0 *Mar 1 02:07:18.862: ISAKMP (0:1): beginning peer discovery exchange !--- TED probe is sent to the original destination of the !--- IP packet that matches the crypto access-list for encryption. *Mar 1 02:07:18.862: ISAKMP (0:1): sending packet to 12.12.12.13 (I) PEER_DISCOVERY via FastEthernet0/0:11.11.11.2 !--- TED response is received and the peer discovered. *Mar 1 02:07:18.962: ISAKMP (0:1): received packet from 11.11.11.2 (I) PEER_DISCOVERY *Mar 1 02:07:18.966: ISAKMP (0:1): processing vendor id payload *Mar 1 02:07:18.966: ISAKMP (0:1): speaking to another IOS box! *Mar 1 02:07:18.966: ISAKMP (0:1): processing ID payload. message ID = 0 *Mar 1 02:07:18.966: ISAKMP:received payload type 16 *Mar 1 02:07:18.966: ISAKMP (0:1): received response to my peer discovery probe! *Mar 1 02:07:18.966: ISAKMP (0:1): ted negotiated proxies: 0 13.13.13.0/255.255.255.0:0, 12.12.12.0 /255.255.255.0:0 !--- Normal IKE process begins here to form a secure tunnel to the !--- peer discovered through TED. *Mar 1 02:07:18.970: ISAKMP (0:1): initiating IKE to 11.11.11.2 in response to probe. *Mar 1 02:07:18.970: ISAKMP: local port 500, remote port 500 *Mar 1 02:07:18.970: ISAKMP (0:1): created new SA after peer-discovery with 11.11.11.2 *Mar 1 02:07:18.974: ISAKMP (0:2): sending packet to 11.11.11.2 (I) MM_NO_STATE *Mar 1 02:07:18.974: ISAKMP (0:1): peer does not do paranoid keepalives. *Mar 1 02:07:18.974: ISAKMP (0:1): deleting SA reason "delete_me flag/throw" state (I) PEER_DISCOVE RY (peer 12.12.12.13) input queue 0 *Mar 1 02:07:19.975: ISAKMP (0:1): purging SA., sa=82687F70, delme=82687F70 *Mar 1 02:07:19.975: CryptoEngine0: delete connection 1 *Mar 1 02:07:20.608: ISAKMP (0:2): received packet from 11.11.11.2 (I) MM_NO_STATE *Mar 1 02:07:20.608: ISAKMP (0:2): processing SA payload. message ID = 0 *Mar 1 02:07:20.608: ISAKMP (0:2): found peer pre-shared key matching 11.11.11.2 !--- IKE SAs are negotiated. *Mar 1 02:07:20.612: ISAKMP (0:2): Checking ISAKMP transform 1 against priority 10 policy *Mar 1 02:07:20.612: ISAKMP: encryption DES-CBC *Mar 1 02:07:20.612: ISAKMP: hash SHA *Mar 1 02:07:20.612: ISAKMP: default group 1 *Mar 1 02:07:20.612: ISAKMP: auth pre-share *Mar 1 02:07:20.612: ISAKMP: life type in seconds *Mar 1 02:07:20.612: ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80 *Mar 1 02:07:20.612: ISAKMP (0:2): atts are acceptable. Next payload is 0 *Mar 1 02:07:20.616: CryptoEngine0: generate alg parameter *Mar 1 02:07:20.781: CRYPTO_ENGINE: Dh phase 1 status: 0 *Mar 1 02:07:20.781: CRYPTO_ENGINE: Dh phase 1 status: 0 *Mar 1 02:07:20.781: ISAKMP (0:2): SA is doing pre-shared key authentication using id type ID_IPV4_ADDR *Mar 1 02:07:20.797: ISAKMP (0:2): sending packet to 11.11.11.2 (I) MM_SA_SETUP *Mar 1 02:07:22.972: ISAKMP (0:2): received packet from 11.11.11.2 (I) MM_SA_SETUP *Mar 1 02:07:22.972: ISAKMP (0:2): processing KE payload. message ID = 0 *Mar 1 02:07:22.972: CryptoEngine0: generate alg parameter *Mar 1 02:07:23.177: ISAKMP (0:2): processing NONCE payload. message ID = 0 *Mar 1 02:07:23.177: ISAKMP (0:2): found peer pre-shared key matching 11.11.11.2 *Mar 1 02:07:23.181: CryptoEngine0: create ISAKMP SKEYID for conn id 2 *Mar 1 02:07:23.181: ISAKMP (0:2): SKEYID state generated *Mar 1 02:07:23.185: ISAKMP (0:2): processing vendor id payload *Mar 1 02:07:23.185: ISAKMP (0:2): speaking to another IOS box! *Mar 1 02:07:23.185: ISAKMP (2): ID payload next-payload : 8 type : 1 protocol : 17 port : 500 length : 8 *Mar 1 02:07:23.185: ISAKMP (2): Total payload length: 12 *Mar 1 02:07:23.185: CryptoEngine0: generate hmac context for conn id 2 *Mar 1 02:07:23.189: ISAKMP (0:2): sending packet to 11.11.11.2 (I) MM_KEY_EXCH *Mar 1 02:07:23.277: ISAKMP (0:2): received packet from 11.11.11.2 (I) MM_KEY_EXCH *Mar 1 02:07:23.281: ISAKMP (0:2): processing ID payload. message ID = 0 *Mar 1 02:07:23.281: ISAKMP (0:2): processing HASH payload. message ID = 0 *Mar 1 02:07:23.281: CryptoEngine0: generate hmac context for conn id 2 !--- Peer is authenticated. *Mar 1 02:07:23.285: ISAKMP (0:2): SA has been authenticated with 11.11.11.2 *Mar 1 02:07:23.285: ISAKMP (0:2): beginning Quick Mode exchange, M-ID of 409419560 *Mar 1 02:07:23.285: ISAKMP (0:2): asking for 1 spis from ipsec *Mar 1 02:07:23.285: ISAKMP (0:2): had to get SPI's from ipsec. *Mar 1 02:07:23.289: CryptoEngine0: clear dh number for conn id 1 *Mar 1 02:07:23.289: IPSEC(key_engine): got a queue event... *Mar 1 02:07:23.289: IPSEC(spi_response): getting spi 4160804383 for SA from 11.11.11.1 to 11.11.11.2 for prot 3 *Mar 1 02:07:23.289: ISAKMP: received ke message (2/1) *Mar 1 02:07:23.537: CryptoEngine0: generate hmac context for conn id 2 *Mar 1 02:07:23.541: ISAKMP (0:2): sending packet to 11.11.11.2 (I) QM_IDLE *Mar 1 02:07:23.958: ISAKMP (0:2): received packet from 11.11.11.2 (I) QM_IDLE *Mar 1 02:07:23.962: CryptoEngine0: generate hmac context for conn id 2 *Mar 1 02:07:23.962: ISAKMP (0:2): processing HASH payload. message ID = 409419560 *Mar 1 02:07:23.962: ISAKMP (0:2): processing SA payload. message ID = 409419560 !--- IPsec SAs are negotiated. *Mar 1 02:07:23.962: ISAKMP (0:2): Checking IPSec proposal 1 *Mar 1 02:07:23.962: ISAKMP: transform 1, ESP_DES *Mar 1 02:07:23.966: ISAKMP: attributes in transform: *Mar 1 02:07:23.966: ISAKMP: encaps is 1 *Mar 1 02:07:23.966: ISAKMP: SA life type in seconds *Mar 1 02:07:23.966: ISAKMP: SA life duration (basic) of 3600 *Mar 1 02:07:23.966: ISAKMP: SA life type in kilobytes *Mar 1 02:07:23.966: ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0 *Mar 1 02:07:23.966: ISAKMP: authenticator is HMAC-MD5 *Mar 1 02:07:23.970: validate proposal 0 *Mar 1 02:07:23.970: ISAKMP (0:2): atts are acceptable. *Mar 1 02:07:23.970: IPSEC(validate_proposal_request): proposal part #1, (key eng. msg.) INBOUND local= 11.11.11.1, remote= 11.11.11.2, local_proxy= 13.13.13.0/255.255.255.0/0/0 (type=4), remote_proxy= 12.12.12.0/255.255.255.0/0/0 (type=4), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 0s and 0kb, spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4 *Mar 1 02:07:23.974: validate proposal request 0 *Mar 1 02:07:23.974: ISAKMP (0:2): processing NONCE payload. message ID = 409419560 *Mar 1 02:07:23.974: ISAKMP (0:2): processing ID payload. message ID = 409419560 *Mar 1 02:07:23.974: ISAKMP (0:2): processing ID payload. message ID = 409419560 *Mar 1 02:07:23.974: CryptoEngine0: generate hmac context for conn id 2 *Mar 1 02:07:23.978: ipsec allocate flow 0 *Mar 1 02:07:23.978: ipsec allocate flow 0 !--- IPsec SAs are generated for inbound and outbound traffic. *Mar 1 02:07:23.986: ISAKMP (0:2): Creating IPSec SAs *Mar 1 02:07:23.986: inbound SA from 11.11.11.2 to 11.11.11.1 (proxy 12.12.12.0 to 13.13.13.0) *Mar 1 02:07:23.986: has spi 0xF800D61F and conn_id 2000 and flags 4 *Mar 1 02:07:23.986: lifetime of 3600 seconds *Mar 1 02:07:23.986: lifetime of 4608000 kilobytes *Mar 1 02:07:23.990: outbound SA from 11.11.11.1 to 11.11.11.2 (proxy 13.13.13.0 to 12.12.12.0 ) *Mar 1 02:07:23.990: has spi -1535570016 and conn_id 2001 and flags C *Mar 1 02:07:23.990: lifetime of 3600 seconds *Mar 1 02:07:23.990: lifetime of 4608000 kilobytes *Mar 1 02:07:23.990: ISAKMP (0:2): sending packet to 11.11.11.2 (I) QM_IDLE *Mar 1 02:07:23.994: ISAKMP (0:2): deleting node 409419560 error FALSE reason "" *Mar 1 02:07:23.994: IPSEC(key_engine): got a queue event... *Mar 1 02:07:23.994: IPSEC(initialize_sas): , (key eng. msg.) INBOUND local= 11.11.11.1, remote= 11.11.11.2, local_proxy= 13.13.13.0/255.255.255.0/0/0 (type=4), remote_proxy= 12.12.12.0/255.255.255.0/0/0 (type=4), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 3600s and 4608000kb, spi= 0xF800D61F(4160804383), conn_id= 2000, keysize= 0, flags= 0x4 *Mar 1 02:07:23.998: IPSEC(initialize_sas): , (key eng. msg.) OUTBOUND local= 11.11.11.1, remote= 11.11.11.2, local_proxy= 13.13.13.0/255.255.255.0/0/0 (type=4), remote_proxy= 12.12.12.0/255.255.255.0/0/0 (type=4), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 3600s and 4608000kb, spi= 0xA4790FA0(2759397280), conn_id= 2001, keysize= 0, flags= 0xC *Mar 1 02:07:24.002: IPSEC(create_sa): sa created, (sa) sa_dest= 11.11.11.1, sa_prot= 50, sa_spi= 0xF800D61F(4160804383), sa_trans= esp-des esp-md5-hmac , sa_conn_id= 2000 *Mar 1 02:07:24.002: IPSEC(create_sa): sa created, (sa) sa_dest= 11.11.11.2, sa_prot= 50, sa_spi= 0xA4790FA0(2759397280), sa_trans= esp-des esp-md5-hmac , sa_conn_id= 2001 Daphne#
fred#show debug Cryptographic Subsystem: Crypto ISAKMP debugging is on Crypto Engine debugging is on Crypto IPSEC debugging is on fred# !--- Receives the TED probe. *Mar 1 02:07:45.763: ISAKMP (0:0): received packet from 13.13.13.14 (N) NEW SA *Mar 1 02:07:45.767: ISAKMP: local port 500, remote port 500 *Mar 1 02:07:45.779: ISAKMP (0:1): processing vendor id payload *Mar 1 02:07:45.783: ISAKMP (0:1): speaking to another IOS box! *Mar 1 02:07:45.783: ISAKMP (0:1): processing ID payload. message ID = 0 *Mar 1 02:07:45.787: ISAKMP (0:1): processing ID payload. message ID = -1992472852 *Mar 1 02:07:45.791: ISAKMP (1): ID_IPV4_ADDR_SUBNET src 13.13.13.0 /255.255.255.0 prot 0 port 0 *Mar 1 02:07:45.791: ISAKMP (0:1): processing vendor id payload !--- Sends a response to the other peer for the TED probe. *Mar 1 02:07:45.795: ISAKMP (0:1): responding to peer discovery probe! *Mar 1 02:07:45.799: peer's address is 11.11.11.1 *Mar 1 02:07:45.799: src (him) 4, 13.13.13.0/255.255.255.0 to dst (me) 0, 0.0.0.0/0.0.0.0 *Mar 1 02:07:45.803: ISAKMP (0:1): peer can handle TED V3: changing source to 11.11.11.1 and dest to 11.11.11.2 *Mar 1 02:07:45.811: ISAKMP (1): ID payload next-payload : 239 type : 1 protocol : 17 port : 500 length : 8 *Mar 1 02:07:45.815: ISAKMP (1): Total payload length: 12 *Mar 1 02:07:45.819: ISAKMP (0:1): sending packet to 11.11.11.1 (R) PEER_DISCOVERY *Mar 1 02:07:45.823: ISAKMP (0:1): peer does not do paranoid keepalives. *Mar 1 02:07:45.823: ISAKMP (0:1): deleting SA reason "delete_me flag/throw" state (R) PEER_DISCOVE RY (peer 11.11.11.1) input queue 0 *Mar 1 02:07:45.827: ISAKMP (0:1): deleting node 0 error TRUE reason "delete_me flag/throw" !--- IKE processing begins here. *Mar 1 02:07:45.871: ISAKMP (0:0): received packet from 11.11.11.1 (N) NEW SA *Mar 1 02:07:45.875: ISAKMP: local port 500, remote port 500 *Mar 1 02:07:45.883: ISAKMP (0:2): processing SA payload. message ID = 0 *Mar 1 02:07:45.887: ISAKMP (0:2): found peer pre-shared key matching 11.11.11.1 !--- IKE SAs are negotiated. *Mar 1 02:07:45.887: ISAKMP (0:2): Checking ISAKMP transform 1 against priority 10 policy *Mar 1 02:07:45.891: ISAKMP: encryption DES-CBC *Mar 1 02:07:45.891: ISAKMP: hash SHA *Mar 1 02:07:45.895: ISAKMP: default group 1 *Mar 1 02:07:45.895: ISAKMP: auth pre-share *Mar 1 02:07:45.899: ISAKMP: life type in seconds *Mar 1 02:07:45.899: ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80 *Mar 1 02:07:45.903: ISAKMP (0:2): atts are acceptable. Next payload is 0 *Mar 1 02:07:45.907: CryptoEngine0: generate alg parameter *Mar 1 02:07:47.455: CRYPTO_ENGINE: Dh phase 1 status: 0 *Mar 1 02:07:47.455: CRYPTO_ENGINE: Dh phase 1 status: 0 *Mar 1 02:07:47.459: ISAKMP (0:2): SA is doing pre-shared key authentication using id type ID_IPV4_ ADDR *Mar 1 02:07:47.463: ISAKMP (0:2): sending packet to 11.11.11.1 (R) MM_SA_SETUP *Mar 1 02:07:47.467: ISAKMP (0:1): purging SA., sa=2349E0, delme=2349E0 *Mar 1 02:07:47.471: ISAKMP (0:1): purging node 0 *Mar 1 02:07:47.475: CryptoEngine0: delete connection 1 *Mar 1 02:07:47.707: ISAKMP (0:2): received packet from 11.11.11.1 (R) MM_SA_SETUP *Mar 1 02:07:47.711: ISAKMP (0:2): processing KE payload. message ID = 0 *Mar 1 02:07:47.715: CryptoEngine0: generate alg parameter *Mar 1 02:07:49.767: ISAKMP (0:2): processing NONCE payload. message ID = 0 *Mar 1 02:07:49.775: ISAKMP (0:2): found peer pre-shared key matching 11.11.11.1 *Mar 1 02:07:49.783: CryptoEngine0: create ISAKMP SKEYID for conn id 2 *Mar 1 02:07:49.799: ISAKMP (0:2): SKEYID state generated *Mar 1 02:07:49.803: ISAKMP (0:2): processing vendor id payload *Mar 1 02:07:49.807: ISAKMP (0:2): speaking to another IOS box! *Mar 1 02:07:49.815: ISAKMP (0:2): sending packet to 11.11.11.1 (R) MM_KEY_EXCH *Mar 1 02:07:50.087: ISAKMP (0:2): received packet from 11.11.11.1 (R) MM_KEY_EXCH *Mar 1 02:07:50.095: ISAKMP (0:2): processing ID payload. message ID = 0 *Mar 1 02:07:50.099: ISAKMP (0:2): processing HASH payload. message ID = 0 *Mar 1 02:07:50.103: CryptoEngine0: generate hmac context for conn id 2 !--- Peer is authenticated. *Mar 1 02:07:50.111: ISAKMP (0:2): SA has been authenticated with 11.11.11.1 *Mar 1 02:07:50.115: ISAKMP (2): ID payload next-payload : 8 type : 1 protocol : 17 port : 500 length : 8 *Mar 1 02:07:50.115: ISAKMP (2): Total payload length: 12 *Mar 1 02:07:50.119: CryptoEngine0: generate hmac context for conn id 2 *Mar 1 02:07:50.131: CryptoEngine0: clear dh number for conn id 1 *Mar 1 02:07:50.135: ISAKMP (0:2): sending packet to 11.11.11.1 (R) QM_IDLE *Mar 1 02:07:50.451: ISAKMP (0:2): received packet from 11.11.11.1 (R) QM_IDLE *Mar 1 02:07:50.467: CryptoEngine0: generate hmac context for conn id 2 *Mar 1 02:07:50.475: ISAKMP (0:2): processing HASH payload. message ID = 409419560 *Mar 1 02:07:50.475: ISAKMP (0:2): processing SA payload. message ID = 409419560 !--- IPsec SAs are negotiated. *Mar 1 02:07:50.479: ISAKMP (0:2): Checking IPSec proposal 1 *Mar 1 02:07:50.479: ISAKMP: transform 1, ESP_DES *Mar 1 02:07:50.483: ISAKMP: attributes in transform: *Mar 1 02:07:50.483: ISAKMP: encaps is 1 *Mar 1 02:07:50.487: ISAKMP: SA life type in seconds *Mar 1 02:07:50.487: ISAKMP: SA life duration (basic) of 3600 *Mar 1 02:07:50.487: ISAKMP: SA life type in kilobytes *Mar 1 02:07:50.491: ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0 *Mar 1 02:07:50.495: ISAKMP: authenticator is HMAC-MD5 *Mar 1 02:07:50.495: validate proposal 0 *Mar 1 02:07:50.499: ISAKMP (0:2): atts are acceptable. *Mar 1 02:07:50.503: IPSEC(validate_proposal_request): proposal part #1, (key eng. msg.) INBOUND local= 11.11.11.2, remote= 11.11.11.1, local_proxy= 12.12.12.0/255.255.255.0/0/0 (type=4), remote_proxy= 13.13.13.0/255.255.255.0/0/0 (type=4), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 0s and 0kb, spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4 *Mar 1 02:07:50.515: validate proposal request 0 *Mar 1 02:07:50.519: ISAKMP (0:2): processing NONCE payload. message ID = 409419560 *Mar 1 02:07:50.523: ISAKMP (0:2): processing ID payload. message ID = 409419560 *Mar 1 02:07:50.523: ISAKMP (0:2): processing ID payload. message ID = 409419560 *Mar 1 02:07:50.527: ISAKMP (0:2): asking for 1 spis from ipsec *Mar 1 02:07:50.535: IPSEC(key_engine): got a queue event... *Mar 1 02:07:50.543: IPSEC(spi_response): getting spi 2759397280 for SA from 11.11.11.2 to 11.11.11.1 for prot 3 *Mar 1 02:07:50.551: ISAKMP: received ke message (2/1) *Mar 1 02:07:50.787: CryptoEngine0: generate hmac context for conn id 2 *Mar 1 02:07:50.803: ISAKMP (0:2): sending packet to 11.11.11.1 (R) QM_IDLE *Mar 1 02:07:50.887: ISAKMP (0:2): received packet from 11.11.11.1 (R) QM_IDLE *Mar 1 02:07:50.899: CryptoEngine0: generate hmac context for conn id 2 *Mar 1 02:07:50.907: ipsec allocate flow 0 *Mar 1 02:07:50.907: ipsec allocate flow 0 !--- IPsec SAs are generated for inbound and outbound traffic. *Mar 1 02:07:50.939: ISAKMP (0:2): Creating IPSec SAs *Mar 1 02:07:50.939: inbound SA from 11.11.11.1 to 11.11.11.2 (proxy 13.13.13.0 to 12.12.12.0) *Mar 1 02:07:50.947: has spi 0xA4790FA0 and conn_id 2000 and flags 4 *Mar 1 02:07:50.947: lifetime of 3600 seconds *Mar 1 02:07:50.951: lifetime of 4608000 kilobytes *Mar 1 02:07:50.951: outbound SA from 11.11.11.2 to 11.11.11.1 (proxy 12.12.12.0 to 13.13.13.0 ) *Mar 1 02:07:50.959: has spi -134162913 and conn_id 2001 and flags C *Mar 1 02:07:50.959: lifetime of 3600 seconds *Mar 1 02:07:50.963: lifetime of 4608000 kilobytes *Mar 1 02:07:50.963: ISAKMP (0:2): deleting node 409419560 error FALSE reason "quick mode done (awa it()" *Mar 1 02:07:50.971: IPSEC(key_engine): got a queue event... *Mar 1 02:07:50.971: IPSEC(initialize_sas): , (key eng. msg.) INBOUND local= 11.11.11.2, remote= 11.11.11.1, local_proxy= 12.12.12.0/255.255.255.0/0/0 (type=4), remote_proxy= 13.13.13.0/255.255.255.0/0/0 (type=4), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 3600s and 4608000kb, spi= 0xA4790FA0(2759397280), conn_id= 2000, keysize= 0, flags= 0x4 *Mar 1 02:07:50.983: IPSEC(initialize_sas): , (key eng. msg.) OUTBOUND local= 11.11.11.2, remote= 11.11.11.1, local_proxy= 12.12.12.0/255.255.255.0/0/0 (type=4), remote_proxy= 13.13.13.0/255.255.255.0/0/0 (type=4), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 3600s and 4608000kb, spi= 0xF800D61F(4160804383), conn_id= 2001, keysize= 0, flags= 0xC *Mar 1 02:07:51.003: IPSEC(create_sa): sa created, (sa) sa_dest= 11.11.11.2, sa_prot= 50, sa_spi= 0xA4790FA0(2759397280), sa_trans= esp-des esp-md5-hmac , sa_conn_id= 2000 *Mar 1 02:07:51.007: IPSEC(create_sa): sa created, (sa) sa_dest= 11.11.11.1, sa_prot= 50, sa_spi= 0xF800D61F(4160804383), sa_trans= esp-des esp-md5-hmac , sa_conn_id= 2001 fred#
Revisie | Publicatiedatum | Opmerkingen |
---|---|---|
1.0 |
11-Dec-2001 |
Eerste vrijgave |