Hello community,
I am wondering why R2 is not seing R5's replies when I ping 155.1.0.5 sourced from R2's loopback 0, yet R2 sees R3's replies and the configuration logic for both is exactly the same:
R2(config)#do sh run | s ip nat
ip nat outside
ip nat outside
ip nat pool Net23 155.1.23.200 155.1.23.200 prefix-length 24
ip nat pool Net2 155.1.0.200 155.1.0.200 prefix-length 24
ip nat inside source route-map ToR3 pool Net23
ip nat inside source route-map ToR3-NotLoop interface Serial1/1 overload
ip nat inside source route-map ToR5 pool Net2 overload
ip nat inside source route-map ToR5-NotLoop interface Serial1/0 overload
R2(config)#do sh route-m
route-map ToR5-NotLoop, deny, sequence 10
Match clauses:
ip address (access-lists): 1
interface Serial1/0
Set clauses:
Policy routing matches: 0 packets, 0 bytes
route-map ToR5-NotLoop, permit, sequence 1000
Match clauses:
interface Serial1/0
Set clauses:
Policy routing matches: 0 packets, 0 bytes
route-map ToR3-NotLoop, deny, sequence 10
Match clauses:
ip address (access-lists): 1
interface Serial1/1
Set clauses:
Policy routing matches: 0 packets, 0 bytes
route-map ToR3-NotLoop, permit, sequence 1000
Match clauses:
interface Serial1/1
Set clauses:
Policy routing matches: 0 packets, 0 bytes
route-map ToR3, permit, sequence 10
Match clauses:
ip address (access-lists): 1
interface Serial1/1
Set clauses:
Policy routing matches: 0 packets, 0 bytes
route-map ToR5, permit, sequence 10
Match clauses:
ip address (access-lists): 1
interface Serial1/0
Set clauses:
Policy routing matches: 0 packets, 0 bytes
R2(config)#do sh run int s1/1
Building configuration...
Current configuration : 169 bytes
!
interface Serial1/1
ip address 155.1.23.2 255.255.255.0
ip nat outside
ip rip advertise 10
ip virtual-reassembly in
serial restart-delay 0
clock rate 64000
end
R2(config)#do sh run int s1/0
Building configuration...
Current configuration : 369 bytes
!
interface Serial1/0
ip address 155.1.0.2 255.255.255.0
ip nat outside
ip rip advertise 10
ip virtual-reassembly in
encapsulation frame-relay
ip split-horizon
serial restart-delay 0
frame-relay map ip 155.1.0.1 205
frame-relay map ip 155.1.0.3 205
frame-relay map ip 155.1.0.4 205
frame-relay map ip 155.1.0.5 205 broadcast
no frame-relay inverse-arp
end
R2(config)#do ping 155.1.23.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 155.1.23.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 9/9/9 ms
R2(config)#do ping 155.1.23.3 sou lo0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 155.1.23.3, timeout is 2 seconds:
Packet sent with a source address of 150.1.2.2
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 9/9/10 ms
R3(config)#
*Mar 20 23:47:37.043: ICMP: echo reply sent, src 155.1.23.3, dst 155.1.23.2, topology BASE, dscp 0 topoid 0
*Mar 20 23:47:37.052: ICMP: echo reply sent, src 155.1.23.3, dst 155.1.23.2, topology BASE, dscp 0 topoid 0
*Mar 20 23:47:37.061: ICMP: echo reply sent, src 155.1.23.3, dst 155.1.23.2, topology BASE, dscp 0 topoid 0
*Mar 20 23:47:37.070: ICMP: echo reply sent, src 155.1.23.3, dst 155.1.23.2, topology BASE, dscp 0 topoid 0
*Mar 20 23:47:37.079: ICMP: echo reply sent, src 155.1.23.3, dst 155.1.23.2, topology BASE, dscp 0 topoid 0
R3(config)#
*Mar 20 23:47:42.653: ICMP: echo reply sent, src 155.1.23.3, dst 155.1.23.200, topology BASE, dscp 0 topoid 0
*Mar 20 23:47:42.662: ICMP: echo reply sent, src 155.1.23.3, dst 155.1.23.200, topology BASE, dscp 0 topoid 0
*Mar 20 23:47:42.672: ICMP: echo reply sent, src 155.1.23.3, dst 155.1.23.200, topology BASE, dscp 0 topoid 0
*Mar 20 23:47:42.681: ICMP: echo reply sent, src 155.1.23.3, dst 155.1.23.200, topology BASE, dscp 0 topoid 0
*Mar 20 23:47:42.690: ICMP: echo reply sent, src 155.1.23.3, dst 155.1.23.200, topology BASE, dscp 0 topoid 0
R2(config)#do ping 155.1.0.5
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 155.1.0.5, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/17/18 ms
R2(config)#do ping 155.1.0.5 sou lo0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 155.1.0.5, timeout is 2 seconds:
Packet sent with a source address of 150.1.2.2
.....
Success rate is 0 percent (0/5)
R5(config)#
*Mar 20 23:48:41.985: ICMP: echo reply sent, src 155.1.0.5, dst 155.1.0.2, topology BASE, dscp 0 topoid 0
*Mar 20 23:48:42.002: ICMP: echo reply sent, src 155.1.0.5, dst 155.1.0.2, topology BASE, dscp 0 topoid 0
*Mar 20 23:48:42.020: ICMP: echo reply sent, src 155.1.0.5, dst 155.1.0.2, topology BASE, dscp 0 topoid 0
*Mar 20 23:48:42.037: ICMP: echo reply sent, src 155.1.0.5, dst 155.1.0.2, topology BASE, dscp 0 topoid 0
*Mar 20 23:48:42.056: ICMP: echo reply sent, src 155.1.0.5, dst 155.1.0.2, topology BASE, dscp 0 topoid 0
R5(config)#
*Mar 20 23:48:44.429: ICMP: echo reply sent, src 155.1.0.5, dst 155.1.0.200, topology BASE, dscp 0 topoid 0
R5(config)#
*Mar 20 23:48:46.433: ICMP: echo reply sent, src 155.1.0.5, dst 155.1.0.200, topology BASE, dscp 0 topoid 0
R5(config)#
*Mar 20 23:48:48.433: ICMP: echo reply sent, src 155.1.0.5, dst 155.1.0.200, topology BASE, dscp 0 topoid 0
R5(config)#
*Mar 20 23:48:50.433: ICMP: echo reply sent, src 155.1.0.5, dst 155.1.0.200, topology BASE, dscp 0 topoid 0
R5(config)#
*Mar 20 23:48:52.436: ICMP: echo reply sent, src 155.1.0.5, dst 155.1.0.200, topology BASE, dscp 0 topoid 0
as you can see, both R3 and R5 are seeing R2's pings but R2 does not get R5's replies when R2 pings from loopback0. Maybe there is an error here and I am not seing it, would someone please take a quick look?
Thanks in advance!!!