Hi,
I have a ISR1100 (C1111) with two connections: fiber (GiE0/0/0) and LTE (Cellular0/2/0).
Config excerpt:
ip route 0.0.0.0 0.0.0.0 100.64.107.1 name primary track 1
ip route 0.0.0.0 0.0.0.0 Cellular0/2/0 10 name backup
!
ip sla 1
icmp-echo 8.8.8.8 source-interface GigabitEthernet0/0/0
ip sla schedule 1 life forever start-time now
With this configuration, I cannot do any ping from GiE0/0/0 interface:
router#ping 8.8.8.8 source GigabitEthernet 0/0/0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
Packet sent with a source address of 100.72.88.141
.....
Success rate is 0 percent (0/5)
router#ping 8.8.8.8
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 48/56/64 ms
If I disable the secondary route (Cellular0/2/0) then the ping works correctly.
router(config)#no ip route 0.0.0.0 0.0.0.0 Cellular0/2/0 10 name backup
router(config)#end
router#ping 8.8.8.8 source GigabitEthernet 0/0/0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
Packet sent with a source address of 100.72.88.141
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/12/12 ms
I think the question may be related with IP SLA の基本設定 (without reply) because the confiuration are too similar, but I cannot understand the question on this post.