ā11-14-2012 09:49 PM - edited ā02-21-2020 06:29 PM
my company config dmvpn and use eigrp as route , now the problem is the tunnel interface flapping , and log:
*Nov 15 05:26:46.899: %DUAL-5-NBRCHANGE: EIGRP-IPv4 100: Neighbor 192.168.96.1 (Tunnel100) is down: Peer Termination received
*Nov 15 05:27:01.695: %DUAL-5-NBRCHANGE: EIGRP-IPv4 100: Neighbor 192.168.96.1 (Tunnel100) is up: new adjacency
*Nov 15 05:27:21.271: %ADJ-5-PARENT: Midchain parent maintenance for IP midchain out of Tunnel100, addr 192.168.96.1 - looped chain attempting to stack
*Nov 15 05:26:46.899: %DUAL-5-NBRCHANGE: EIGRP-IPv4 100: Neighbor 192.168.96.1 (Tunnel100) is down: Peer Termination received
*Nov 15 05:27:01.695: %DUAL-5-NBRCHANGE: EIGRP-IPv4 100: Neighbor 192.168.96.1 (Tunnel100) is up: new adjacency
*Nov 15 05:27:21.271: %ADJ-5-PARENT: Midchain parent maintenance for IP midchain out of Tunnel100, addr 192.168.96.1 - looped chain attempting to stack
how to deal with it ,top players ,thank you very much~~~~
config:
interface Tunnel100
description to_ShenYang
bandwidth 10000
ip address 192.168.96.137 255.255.255.0
no ip redirects
ip mtu 1400
ip hello-interval eigrp 100 15
ip hold-time eigrp 100 45
ip nhrp map 192.168.96.1 210.83.25.66
ip nhrp map multicast 210.83.25.66
ip nhrp network-id 1234
ip nhrp holdtime 60
ip nhrp nhs 192.168.96.1
ip nhrp shortcut
ip summary-address eigrp 100 10.19.100.0 255.255.255.0
ip summary-address eigrp 100 172.16.1.64 255.255.255.248
qos pre-classify
tunnel source GigabitEthernet0/0
tunnel mode gre multipoint
tunnel key 1234
tunnel protection ipsec profile myprofile
!
interface Tunnel101
description to_ShenYang_Backup
bandwidth 10000
ip address 192.168.97.137 255.255.255.0
no ip redirects
ip mtu 1400
ip hello-interval eigrp 100 15
ip hold-time eigrp 100 45
ip nhrp map multicast 59.44.43.217
ip nhrp map 192.168.97.129 59.44.43.217
ip nhrp network-id 5678
ip nhrp holdtime 60
ip nhrp nhs 192.168.97.129
ip nhrp shortcut
ip summary-address eigrp 100 10.19.100.0 255.255.255.0
ip summary-address eigrp 100 172.16.1.64 255.255.255.248
qos pre-classify
tunnel source GigabitEthernet0/0
tunnel mode gre multipoint
tunnel key 5678
tunnel protection ipsec profile myprofile1
!
router eigrp 100
network 10.19.100.0 0.0.0.255
network 172.16.1.64 0.0.0.7
network 192.168.96.0
network 192.168.97.0
interface Tunnel100
description to_ShenYang
bandwidth 10000
ip address 192.168.96.137 255.255.255.0
no ip redirects
ip mtu 1400
ip hello-interval eigrp 100 15
ip hold-time eigrp 100 45
ip nhrp map 192.168.96.1 210.83.25.66
ip nhrp map multicast 210.83.25.66
ip nhrp network-id 1234
ip nhrp holdtime 60
ip nhrp nhs 192.168.96.1
ip nhrp shortcut
ip summary-address eigrp 100 10.19.100.0 255.255.255.0
ip summary-address eigrp 100 172.16.1.64 255.255.255.248
qos pre-classify
tunnel source GigabitEthernet0/0
tunnel mode gre multipoint
tunnel key 1234
tunnel protection ipsec profile myprofile
!
interface Tunnel101
description to_ShenYang_Backup
bandwidth 10000
ip address 192.168.97.137 255.255.255.0
no ip redirects
ip mtu 1400
ip hello-interval eigrp 100 15
ip hold-time eigrp 100 45
ip nhrp map multicast 59.44.43.217
ip nhrp map 192.168.97.129 59.44.43.217
ip nhrp network-id 5678
ip nhrp holdtime 60
ip nhrp nhs 192.168.97.129
ip nhrp shortcut
ip summary-address eigrp 100 10.19.100.0 255.255.255.0
ip summary-address eigrp 100 172.16.1.64 255.255.255.248
qos pre-classify
tunnel source GigabitEthernet0/0
tunnel mode gre multipoint
tunnel key 5678
tunnel protection ipsec profile myprofile1
ip route 0.0.0.0 0.0.0.0 112.230.206.77
!
router eigrp 100
network 10.19.100.0 0.0.0.255
network 172.16.1.64 0.0.0.7
network 192.168.96.0
network 192.168.97.0
ā11-14-2012 11:40 PM
Hello
Can you post the complete configuration.. Also another question is whether this was working earlier or since when you started seeing this issue
regards
Harish
ā11-15-2012 04:07 AM
Hi Zhuo Zhao,
This issue usually occurs if there is a routing loop for destination physical address, 210.83.25.66 in your case. Can you please check if there are any routing issues for this particular destination?
Regards,
Chetan
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