Dieses Dokument enthält eine Beispielkonfiguration zur Verschlüsselung des Datenverkehrs vom Netzwerk hinter Router 1 zum Netzwerk hinter Router 2 (in diesem Beispiel werden die Loopback-0 als Netzwerke verwendet). Wenn die primäre Verbindung (Ethernet) zwischen Router 1 und Router 2 ausfällt, fließt IP Security (IPSec)-Datenverkehr weiterhin über die sekundäre Verbindung (ISDN). Es gibt mehrere Möglichkeiten, dieses Ziel zu erreichen. Sie können die Dialer-Uhr, die Backup-Schnittstelle, die Nachfrageseite und das Floating-Static verwenden. Diese Beispielkonfiguration veranschaulicht den Dialer-Überwachungsmechanismus. Weitere Informationen zu anderen Funktionen finden Sie unter Evaluieren von Backup-Schnittstellen, Floating Static Routes und Dialer Watch für DDR-Sicherung.
Für dieses Dokument bestehen keine speziellen Anforderungen.
Die Informationen in diesem Dokument basieren auf den folgenden Software- und Hardwareversionen:
Cisco Router 2621 und 3640
Cisco IOS® Softwareversion 12.3(3)
Die in diesem Dokument enthaltenen Informationen wurden aus Geräten in einer bestimmten Laborumgebung erstellt. Alle in diesem Dokument verwendeten Geräte haben mit einer leeren (Standard-)Konfiguration begonnen. Wenn Ihr Netzwerk in Betrieb ist, stellen Sie sicher, dass Sie die potenziellen Auswirkungen eines Befehls verstehen, bevor Sie es verwenden.
Weitere Informationen zu Dokumentkonventionen finden Sie in den Cisco Technical Tips Conventions.
In diesem Abschnitt erhalten Sie Informationen zum Konfigurieren der in diesem Dokument beschriebenen Funktionen.
Hinweis: Um weitere Informationen zu den in diesem Dokument verwendeten Befehlen zu erhalten, verwenden Sie das Command Lookup Tool (nur registrierte Kunden).
In diesem Dokument wird die Netzwerkeinrichtung verwendet, die im Diagramm hier gezeigt wird:
In diesem Dokument werden die folgenden Konfigurationen verwendet:
Router 1 (2621) |
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r1#show running-config Building configuration... Current configuration : 2244 bytes ! version 12.3 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname r1 ! boot-start-marker boot-end-marker ! ! username r2 password 0 cisco !--- This is the username for remote router (Router 2) !--- and shared secret. Shared secret (used for Challenge Handshake !--- Authentication Protocol [CHAP]) must be the same on both sides. no aaa new-model ip subnet-zero ip tcp synwait-time 5 ! ! no ip domain lookup ! ip audit notify log ip audit po max-events 100 ip ssh break-string no ftp-server write-enable ! ! ! crypto isakmp policy 10 hash md5 authentication pre-share crypto isakmp key cisco address 222.222.222.222 ! ! crypto ipsec transform-set abc esp-des esp-md5-hmac ! crypto map cisco local-address Loopback1 crypto map cisco 10 ipsec-isakmp set peer 222.222.222.222 !--- Peer address, Loopback 1 of Router 2 set transform-set abc match address 101 !--- Networks to encrypt (Loopback 0 on both ends) ! isdn switch-type basic-ts013 ! ! ! ! ! ! ! ! ! no voice hpi capture buffer no voice hpi capture destination ! ! ! ! ! ! interface Loopback0 !--- Network to encrypt ip address 11.11.11.11 255.255.255.0 ! interface Loopback1 !--- Used for peer address for IPSec ip address 111.111.111.111 255.255.255.0 ! interface FastEthernet0/0 !--- Primary link ip address 10.1.1.1 255.255.255.0 no ip route-cache !--- Enable process switching no ip mroute-cache duplex auto speed auto crypto map cisco !--- Apply crypto map on primary interface ! interface BRI0/0 no ip address encapsulation ppp no ip route-cache no ip mroute-cache dialer pool-member 1 isdn switch-type basic-ts013 no cdp enable ! interface Dialer1 !--- Backup link ip address 20.1.1.1 255.255.255.0 encapsulation ppp no ip route-cache !--- Enable process switching ip ospf cost 9999 !--- Increase the cost so that when primary comes up again, !--- Open Shortest Path First (OSPF) routes are !--- preferred using the primary link (due to better cost). no ip mroute-cache dialer idle-timeout 180 dialer pool 1 dialer string 94134028 dialer watch-group 1 !--- Enable dialer watch on this backup interface. !--- Watch the route specified with the dialer watch-list 1 command. dialer-group 1 !--- Apply interesting traffic defined in dialer list 1. no peer neighbor-route ppp authentication chap crypto map cisco !--- Apply crypto map on backup interface. ! router ospf 1 !--- OSPF advertising Loopback 0, Loopback 1, !--- primary, and secondary links. log-adjacency-changes network 10.1.1.0 0.0.0.255 area 0 network 11.11.11.0 0.0.0.255 area 0 network 20.1.1.0 0.0.0.255 area 0 network 111.111.111.0 0.0.0.255 area 0 ! ip http server no ip http secure-server ip classless ! ! access-list 101 permit ip host 11.11.11.11 host 22.22.22.22 !--- Access control list (ACL) 101 is the !--- IPSec traffic used in match address. access-list 110 deny ip any any !--- ACL 110 is for the dialer list to mark !--- all IP traffic uninteresting. The dialer watch will !--- trigger the ISDN backup when the route is lost. dialer watch-list 1 ip 222.222.222.222 255.255.255.255 !--- This defines the route(s) to be watched. !--- This exact route (including subnet mask) !--- must exist in the routing table. !--- Use the dialer watch-group 1 command to apply this !--- list to the backup interface. dialer watch-list 1 delay route-check initial 10 dialer-list 1 protocol ip list 110 !--- Interesting traffic is defined by ACL 110. !--- This is applied to Dialer1 using dialer group 1. ! ! ! dial-peer cor custom ! ! ! ! ! line con 0 exec-timeout 0 0 logging synchronous escape-character 27 line aux 0 line vty 0 4 login ! end |
Router 2 (3640) |
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r2#show running-config Building configuration... Current configuration : 2311 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname r2 ! boot-start-marker boot-end-marker ! username r1 password 0 cisco !--- This is the username for remote router (Router 1) !--- and shared secret. Shared secret (used for CHAP) !--- must be the same on both sides. no aaa new-model ip subnet-zero ip tcp synwait-time 5 ! ! no ip domain lookup ! ip audit notify log ip audit po max-events 100 ip ssh break-string no ftp-server write-enable ! ! ! crypto isakmp policy 10 hash md5 authentication pre-share crypto isakmp key cisco address 111.111.111.111 ! ! crypto ipsec transform-set abc esp-des esp-md5-hmac ! ! crypto map cisco local-address Loopback1 crypto map cisco 10 ipsec-isakmp set peer 111.111.111.111 !--- Peer address, Loopback 1 of Router 1 set transform-set abc match address 101 !--- Networks to encrypt (Loopback 0 on both ends) ! isdn switch-type basic-ts013 ! ! ! ! ! ! ! ! ! no voice hpi capture buffer no voice hpi capture destination ! ! ! ! ! ! interface Loopback0 ip address 22.22.22.22 255.255.255.0 !--- Network to encrypt ! interface Loopback1 ip address 222.222.222.222 255.255.255.0 !--- Used for peer address for IPSec. ! interface BRI0/0 no ip address encapsulation ppp no ip route-cache no ip mroute-cache dialer pool-member 1 isdn switch-type basic-ts013 ! interface Ethernet0/0 !--- Primary link ip address 10.1.1.2 255.255.255.0 no ip route-cache !--- Enable process switching. no ip mroute-cache half-duplex crypto map cisco !--- Apply crypto map on primary interface. ! interface Dialer1 ip address 20.1.1.2 255.255.255.0 encapsulation ppp no ip route-cache ip ospf cost 9999 no ip mroute-cache dialer pool 1 dialer idle-timeout 600 dialer remote-name r1 !--- Dialer for the BRI interface of the remote router !--- without a dial string. dialer-group 1 !--- Apply interesting traffic defined in dialer list 1. ppp authentication chap crypto map cisco !--- Apply crypto map on backup interface. ! router ospf 1 log-adjacency-changes network 10.1.1.0 0.0.0.255 area 0 network 20.1.1.0 0.0.0.255 area 0 network 22.22.22.0 0.0.0.255 area 0 network 222.222.222.0 0.0.0.255 area 0 ! no ip http server no ip http secure-server ip classless ! ! access-list 101 permit ip host 22.22.22.22 host 11.11.11.11 access-list 110 deny ospf any any !--- Mark OSPF as uninteresting. !--- This will not allow OSPF hellos !--- to try to bring the link up. access-list 110 permit ip any any dialer-list 1 protocol ip list 110 !--- Interesting traffic is defined by ACL 110. !--- This is applied to Dialer1 using dialer group 1. ! line con 0 exec-timeout 0 0 logging synchronous escape-character 27 line aux 0 line vty 0 4 login ! end |
Dieser Abschnitt enthält Informationen, mit denen Sie überprüfen können, ob Ihre Konfiguration ordnungsgemäß funktioniert.
Bestimmte show-Befehle werden vom Output Interpreter Tool unterstützt (nur registrierte Kunden), mit dem Sie eine Analyse der show-Befehlsausgabe anzeigen können.
Routing-Tabelle von Router 1 (2621) - primäre Verbindung wird hochgefahren
r1#show ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 I - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area, * - candidate default, U - per-user static route, o - ODR, P - periodic downloaded static route Gateway of last resort is not set 222.222.222.0/32 is subnetted, 1 subnets O 222.222.222.222 [110/2] via 10.1.1.2, 00:00:25, FastEthernet0/0 20.0.0.0/24 is subnetted, 1 subnets C 20.1.1.0 is directly connected, Dialer1 22.0.0.0/32 is subnetted, 1 subnets O 22.22.22.22 [110/2] via 10.1.1.2, 00:00:25, FastEthernet0/0 111.0.0.0/24 is subnetted, 1 subnets C 111.111.111.0 is directly connected, Loopback1 10.0.0.0/24 is subnetted, 1 subnets C 10.1.1.0 is directly connected, FastEthernet0/0 11.0.0.0/24 is subnetted, 1 subnets C 11.11.11.0 is directly connected, Loopback0
Routing-Tabelle von Router 2 (3640) - primäre Verbindung wird hochgefahren
r2#show ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 I - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area, * - candidate default, U - per-user static route, o - ODR, P - periodic downloaded static route Gateway of last resort is not set. C 222.222.222.0/24 is directly connected, Loopback1 20.0.0.0/24 is subnetted, 1 subnets C 20.1.1.0 is directly connected, Dialer1 22.0.0.0/24 is subnetted, 1 subnets C 22.22.22.0 is directly connected, Loopback0 111.0.0.0/32 is subnetted, 1 subnets O 111.111.111.111 [110/11] via 10.1.1.1, 00:06:22, Ethernet0/0 10.0.0.0/24 is subnetted, 1 subnets C 10.1.1.0 is directly connected, Ethernet0/0 11.0.0.0/32 is subnetted, 1 subnets O 11.11.11.11 [110/11] via 10.1.1.1, 00:06:23, Ethernet0/0
OSPF-Nachbar von Router 1 (2621) - primäre Verbindung wird hochgefahren
r1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 222.222.222.222 1 FULL/DR 00:00:33 10.1.1.2 FastEthernet0/0
OSPF-Nachbar von Router 2 (3640) - primäre Verbindung wird hochgefahren
r2#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 111.111.111.111 1 FULL/BDR 00:00:31 10.1.1.1 Ethernet0/0
Routing-Tabelle von Router 1 (2621) - primäre Verbindung unterbrochen
r1#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP I - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area, * - candidate default, U - per-user static route, o - ODR, P - periodic downloaded static route Gateway of last resort is not set. 222.222.222.0/32 is subnetted, 1 subnets O 222.222.222.222 [110/10000] via 20.1.1.2, 00:00:09, Dialer1 20.0.0.0/24 is subnetted, 1 subnets C 20.1.1.0 is directly connected, BRI0/0 20.0.0.0/24 is subnetted, 1 subnets C 20.1.1.0 is directly connected, Dialer1 22.0.0.0/32 is subnetted, 1 subnets O 22.22.22.22 [110/10000] via 20.1.1.2, 00:00:09, Dialer1 111.0.0.0/24 is subnetted, 1 subnets C 111.111.111.0 is directly connected, Loopback1 10.0.0.0/24 is subnetted, 1 subnets O 10.1.1.0 [110/10009] via 20.1.1.2, 00:00:09, Dialer1 11.0.0.0/24 is subnetted, 1 subnets C 11.11.11.0 is directly connected, Loopback0
Routing-Tabelle von Router 2 (3640) - primäre Verbindung heruntergefahren
r2#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP I - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area, * - candidate default, U - per-user static route, o - ODR, P - periodic downloaded static route Gateway of last resort is not set. C 222.222.222.0/24 is directly connected, Loopback1 20.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 20.1.1.0/24 is directly connected, Dialer1 C 20.1.1.1/32 is directly connected, Dialer1 22.0.0.0/24 is subnetted, 1 subnets C 22.22.22.0 is directly connected, Loopback0 111.0.0.0/32 is subnetted, 1 subnets O 111.111.111.111 [110/10000] via 20.1.1.1, 00:00:07, Dialer1 10.0.0.0/24 is subnetted, 1 subnets C 10.1.1.0 is directly connected, Ethernet0/0 11.0.0.0/32 is subnetted, 1 subnets O 11.11.11.11 [110/10000] via 20.1.1.1, 00:00:08, Dialer1
OSPF-Nachbar von Router 1 (2621) - primäre Verbindung unterbrochen
r1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 222.222.222.222 0 FULL/ - 00:00:32 20.1.1.2 Dialer1
OSPF-Nachbar von Router 2 (3640) - primäre Verbindung unterbrochen
r2#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 111.111.111.111 0 FULL/ - 00:00:31 20.1.1.1 Dialer1
Der Debug Dialer und mehrere show-Befehlsausgaben, die hier angezeigt werden, zeigen an, dass die primäre Verbindung fehlerhaft ist, und die Dialer Watch erkennt die verlorene Route. Der Router initiiert dann die Backup-Verbindung, und OSPF konvergiert über die sekundäre Verbindung. Bei jedem Ablaufen des Timeouts im Leerlauf überprüft der Router, ob die primäre Verbindung ausgefallen ist. Wenn sich herausstellt, dass die primäre Verbindung aktiv ist, trennt die Dialer-Uhr die Sicherungsverbindung, nachdem der Deaktivierungstimer abgelaufen ist, und beendet den Anruf, und OSPF konvergiert wie gewohnt über die primäre Verbindung.
Dies sind die Debug- und Show-Befehlsausgaben von Router 1 (2621), wenn die primäre Verbindung ausfällt und wieder aktiviert wird.
r1#show debug Dial on demand: Dial on demand events debugging is on r1# 03:00:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to down !--- Primary link was brought down manually when you disable the switch ports. 03:00:21: %OSPF-5-ADJCHG: Process 1, Nbr 222.222.222.222 on FastEthernet0/0 from FULL to DOWN, Neighbor Down: Interface down or detached !--- Primary link goes down. !--- OSPF loses neighbor adjacency. r1# !--- Dialer watch kicks in. 03:00:21: DDR: Dialer Watch: watch-group = 1 03:00:21: DDR: network 222.222.222.222/255.255.255.255 DOWN, 03:00:21: DDR: primary DOWN 03:00:21: DDR: Dialer Watch: Dial Reason: Primary of group 1 DOWN 03:00:21: DDR: Dialer Watch: watch-group = 1, 03:00:21: BR0/0 DDR: rotor dialout [best] least recent failure is also most recent failure 03:00:21: BR0/0 DDR: rotor dialout [best] also has most recent failure 03:00:21: BR0/0 DDR: rotor dialout [best] 03:00:21: DDR: dialing secondary by dialer string 94134028 on Di1 03:00:21: BR0/0 DDR: Attempting to dial 94134028 03:00:21: DDR: Dialer Watch: watch-group = 1 r1# 03:00:21: DDR: network 222.222.222.222/255.255.255.255 DOWN, 03:00:21: DDR: primary DOWN 03:00:21: DDR: Dialer Watch: Dial Reason: Secondary of group 1 AVAILABLE 03:00:21: DDR: Dialer Watch: watch-group = 1, 03:00:21: DDR: Dialer Watch: watch-group = 1 03:00:21: DDR: network 222.222.222.222/255.255.255.255 DOWN, 03:00:21: DDR: primary DOWN 03:00:21: DDR: Dialer Watch: Dial Reason: Secondary of group 1 AVAILABLE 03:00:21: DDR: Dialer Watch: watch-group = 1, 03:00:21: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0, TEI 82 changed to up 03:00:94489280514: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up 03:00:94489280516: BR0/0:1 DDR: Dialer Watch: resetting call in progress 03:00:94489280512: BR0/0:1: interface must be fifo queue, force fifo 03:00:94489280512: %DIALER-6-BIND: Interface BR0/0:1 bound to profile Di1 r1# 03:00:22: BR0/0:1 DDR: Remote name for r2 03:00:22: BR0/0:1 DDR: dialer protocol up 03:00:23: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed state to up r1# 03:00:28: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to 94134028 r2 !--- Backup link is now connected to Router 2. r1# 03:00:31: %OSPF-5-ADJCHG: Process 1, Nbr 222.222.222.222 on Dialer1 from LOADING to FULL, Loading Done !--- OSPF converges over the backup link. r1# r1#show dialer BRI0/0 - dialer type = ISDN Dial String Successes Failures Last DNIS Last status 0 incoming call(s) have been screened. 0 incoming call(s) rejected for callback. BRI0/0:1 - dialer type = ISDN Idle timer (180 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is data link layer up Dial reason: Dialing on watched route loss !--- Dial reason is the lost route. Interface bound to profile Di1 Time until disconnect 154 secs !--- Idle timeout is ticking. Current call connected 00:00:25 Connected to 94134028 (r2) BRI0/0:2 - dialer type = ISDN Idle timer (120 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is idle Di1 - dialer type = DIALER PROFILE Idle timer (180 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is data link layer up Number of active calls = 1 Dial String Successes Failures Last DNIS Last status 94134028 45 24 00:00:27 successful Default r1#show isdn active ----------------------------------------------------------------------------- ISDN ACTIVE CALLS ----------------------------------------------------------------------------- Call Calling Called Remote Seconds Seconds Seconds Charges Type Number Number Name Used Left Idle Units/Currency ----------------------------------------------------------------------------- Out ---N/A--- 94134028 r2 37 142 37 0 ----------------------------------------------------------------------------- r1#show dialer BRI0/0 - dialer type = ISDN Dial String Successes Failures Last DNIS Last status 0 incoming call(s) have been screened. 0 incoming call(s) rejected for callback. BRI0/0:1 - dialer type = ISDN Idle timer (180 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is data link layer up Dial reason: Dialing on watched route loss Interface bound to profile Di1 Time until disconnect 47 secs !--- Idle timeout is ticking. Current call connected 00:02:12 Connected to 94134028 (r2) BRI0/0:2 - dialer type = ISDN Idle timer (120 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is idle Di1 - dialer type = DIALER PROFILE Idle timer (180 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is data link layer up Number of active calls = 1 Dial String Successes Failures Last DNIS Last status 94134028 45 24 00:02:14 successful Default r1#show dialer BRI0/0 - dialer type = ISDN Dial String Successes Failures Last DNIS Last status 0 incoming call(s) have been screened. 0 incoming call(s) rejected for callback. BRI0/0:1 - dialer type = ISDN Idle timer (180 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is data link layer up Dial reason: Dialing on watched route loss Interface bound to profile Di1 Time until disconnect 0 secs !--- Idle timeout is ticking. Current call connected 00:02:59 Connected to 94134028 (r2) BRI0/0:2 - dialer type = ISDN Idle timer (120 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is idle Di1 - dialer type = DIALER PROFILE Idle timer (180 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is data link layer up Number of active calls = 1 Dial String Successes Failures Last DNIS Last status 94134028 45 24 00:03:05 successful Default r1# 03:03:22: BR0/0:1 DDR: idle timeout !--- Idle timed out. !--- Dialer watch checks lost routes !--- again and reset the idle time since primary is not up yet. 03:03:22: DDR: Dialer Watch: watch-group = 1 03:03:22: DDR: network 222.222.222.222/255.255.255.255 UP, 03:03:22: DDR: primary DOWN !--- Primary link is still down. r1# r1#show dialer BRI0/0 - dialer type = ISDN Dial String Successes Failures Last DNIS Last status 0 incoming call(s) have been screened. 0 incoming call(s) rejected for callback. BRI0/0:1 - dialer type = ISDN Idle timer (180 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is data link layer up Dial reason: Dialing on watched route loss Interface bound to profile Di1 Time until disconnect 154 secs !--- Idle timeout was reset by dialer watch. Current call connected 00:03:25 Connected to 94134028 (r2) BRI0/0:2 - dialer type = ISDN Idle timer (120 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is idle Di1 - dialer type = DIALER PROFILE Idle timer (180 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is data link layer up Number of active calls = 1 Dial String Successes Failures Last DNIS Last status 94134028 45 24 00:03:28 successful Default r1# 03:04:59: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up !--- Primary link was brought up manually when the switch ports are enabled. r1# r1# 03:05:50: %OSPF-5-ADJCHG: Process 1, Nbr 222.222.222.222 on FastEthernet0/0 from LOADING to FULL, Loading Done r1# r1#show ip ospf neigh Neighbor ID Pri State Dead Time Address Interface 222.222.222.222 0 FULL/ - 00:00:02 20.1.1.2 Dialer1 !--- OSPF over secondary link is still up because !--- the call is not terminated yet, waiting for idle timeout. 222.222.222.222 1 FULL/DR 00:00:38 10.1.1.2 FastEthernet0/0 !--- OSPF is now starts to converge over primary link. r1# r1#show ip route 222.222.222.222 !--- The watched route is now learned through the primary link. !--- Check the cost. Routing entry for 222.222.222.222/32 Known via "ospf 1", distance 110, metric 2, type intra area Last update from 10.1.1.2 on FastEthernet0/0, 00:00:16 ago Routing Descriptor Blocks: * 10.1.1.2, from 222.222.222.222, 00:00:16 ago, via FastEthernet0/0 Route metric is 2, traffic share count is r1# 03:06:22: BR0/0:1 DDR: idle timeout !--- Idle timed out. !--- Dialer watch checks lost routes. Since primary is up, !--- it tears down the call. 03:06:22: DDR: Dialer Watch: watch-group = 1 03:06:22: DDR: network 222.222.222.222/255.255.255.255 UP, 03:06:22: DDR: primary UP 03:06:22: BR0/0:1 DDR: disconnecting call 03:06:22: BR0/0:1 DDR: Dialer Watch: resetting call in progress 03:06:22: DDR: Dialer Watch: watch-group = 1 03:06:22: DDR: network 222.222.222.222/255.255.255.255 UP, 03:06:22: DDR: primary UP 03:06:22: %ISDN-6-DISCONNECT: Interface BRI0/0:1 disconnected from 94134028 r2, call lasted 360 seconds 03:06:96677768412: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to down 03:06:94489281195: BR0/0 DDR: has total 0 call(s), dial_out 0, dial_in 0 r1# 03:06:94489280544: %DIALER-6-UNBIND: Interface BR0/0:1 unbound from profile Di1 03:06:23: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed state to down r1# 03:06:37: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0/0, TEI 82 changed to down r1# 03:07:01: %OSPF-5-ADJCHG: Process 1, Nbr 222.222.222.222 on Dialer1 from FULL to DOWN, Neighbor Down: Dead timer expired !--- OSPF neighbor is down because the secondary link is down. !--- Dead timer has expired. r1# r1#show ip ospf neigh Neighbor ID Pri State Dead Time Address Interface 222.222.222.222 1 FULL/DR 00:00:38 10.1.1.2 FastEthernet0/0 !--- OSPF neighbor is through the primary link only. r1#u all All possible debugging has been turned off r1#
Dieser Abschnitt enthält Informationen zur Fehlerbehebung in Ihrer Konfiguration. Informationen zur Behebung allgemeiner Probleme mit den ISDN-Layern 1, 2 und 3 finden Sie unter Verwenden des Befehls show isdn status für die BRI-Fehlerbehebung.
Bestimmte show-Befehle werden vom Output Interpreter Tool unterstützt (nur registrierte Kunden), mit dem Sie eine Analyse der show-Befehlsausgabe anzeigen können.
Hinweis: Bevor Sie Debugbefehle ausgeben, lesen Sie die Informationen Wichtige Informationen über Debug-Befehle.
Diese Debug-Befehle können auf beiden IPSec-Peers ausgeführt werden.
debug crypto isakmp: Zeigt Fehler in Phase 1 an.
debug crypto ipsec: Zeigt Fehler in Phase 2 an.
debug crypto engine: Zeigt Informationen vom Crypto Engine an.
Diese show-Befehle können auf beiden IPSec-Peers ausgeführt werden.
show crypto isakmp sa: Zeigt alle aktuellen Sicherheitszuordnungen (SAs) für Internet Key Exchange (IKE) auf einem Peer an.
show crypto ipsec sa: Zeigt die Einstellungen an, die von aktuellen [IPSec]-SAs verwendet werden.
show crypto engine connections active - Zeigt aktuelle Verbindungen und Informationen über verschlüsselte und entschlüsselte Pakete an.
Diese Clear Befehle können zum Löschen von SAs verwendet werden.
clear crypto isakmp - Löscht die Sicherheitszuordnungen aus Phase 1.
clear crypto sa: Löscht die Sicherheitszuordnungen aus Phase 2.
Überarbeitung | Veröffentlichungsdatum | Kommentare |
---|---|---|
1.0 |
14-Jan-2008 |
Erstveröffentlichung |