Temos dois roteadores cisco 1841 e 1941. O 1841 continua gerando "tempo de espera expirado" e "interface adeus recebido" sobre o vizinho de 1941. O protocolo VPN IPSec parece permanecer ativo. Infelizmente, o roteador de desligamento não possui syslogs detalhados ou um tamanho de byte de log muito grande. Aqui está um log de exemplo:
Nov 27 17:04:21.848 CST: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 0.0.0.1 (Tunnel0) is down: Interface Goodbye received
Nov 27 17:04:25.000 CST: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 0.0.0.1 (Tunnel0) is up: new adjacency
Nov 27 17:06:39.137 CST: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 0.0.0.1 (Tunnel0) is down: Interface Goodbye received
Nov 27 17:06:39.161 CST: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 0.0.0.1 (Tunnel0) is up: new adjacency
Nov 27 17:07:40.668 CST: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 0.0.0.1 (Tunnel0) is down: Interface Goodbye received
Nov 27 17:07:44.243 CST: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 0.0.0.1 (Tunnel0) is up: new adjacency
Nov 27 17:09:55.492 CST: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 0.0.0.1 (Tunnel0) is down: Interface Goodbye received
Nov 27 17:09:58.888 CST: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 0.0.0.1 (Tunnel0) is up: new adjacency
CISCO 1941
interface Tunnel0
description --[ DataCenter ]--
ip address 192.168.192.2 255.255.255.252
ip access-group tac-in in
ip access-group test out
no ip redirects
ip tcp adjust-mss 1350
load-interval 30
keepalive 10 3
tunnel source 99.99.99.244
tunnel destination 99.99.99.96
!
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/0
description --[ COMPANY WAN ] --
ip address 99.99.99.244 255.255.255.224
ip access-group COMPANYWAN in
duplex auto
speed auto
crypto map CMap-HASH
!
interface GigabitEthernet0/1
description --[ COMPANY LAN ]
ip address 165.65.166.1 255.255.255.0
ip access-group tac in
duplex auto
speed auto
!
!
router eigrp 100
network LIST OMITED
redistribute static metric 50 1 1 1 1
no eigrp log-neighbor-changes
!
CISCO 1841
!
interface Tunnel0
ip address 192.168.192.1 255.255.255.252
no ip redirects
ip flow ingress
ip flow egress
ip tcp adjust-mss 1350
no ip mroute-cache
load-interval 30
tunnel source FastEthernet0/0
tunnel destination 99.99.99.244
crypto map CMap-HASH
!
interface FastEthernet0/0
description dist 0/16
ip address 99.99.99.96 255.255.255.192
ip access-group fa0-0-in in
ip access-group fa0-0-out out
no ip redirects
load-interval 30
speed 100
full-duplex
no cdp enable
crypto map CMap-HASH
!
interface FastEthernet0/1
description dist 0/17
ip address 172.25.0.5 255.255.248.0
no ip redirects
load-interval 30
speed 100
full-duplex
no cdp enable
!
router eigrp 100
redistribute static route-map StaticToEIGRP
network 172.25.0.0 0.0.7.255
network 192.168.192.0 0.0.0.3
auto-summary
!