Issue Pint connectivity

[Namit123]

Hi Team,

WE are facing in our network that we have bgp peering with Alcatel router Point to Point.When we try to ping the IP,we are not able to ping but while we ping with the source of any interface ,we were able to ping the remote IP.PLease help to suggest the way forward.

<KARBLRHTR01>display bgp peer ipv4 vpn-instance OAM

 BGP local router ID: 10.166.32.134
 Local AS number: 65521
 Total number of peers: 2                 Peers in established state: 2

  * - Dynamically created peer
  Peer                    AS  MsgRcvd  MsgSent OutQ PrefRcv Up/Down  State

  10.166.32.129        65010      619      701    0    1762 03:42:22 Established
  10.166.32.133        65010     1041     1723    0    1759 05:48:11 Established
<KARBLRHTR01>
<KARBLRHTR01>
<KARBLRHTR01>

Direct Point to Point Ping:

<KARBLRHTR01>ping -vpn-instance OAM 10.166.32.129
Ping 10.166.32.129 (10.166.32.129): 56 data bytes, press CTRL_C to break
Request time out
Request time out
Request time out

--- Ping statistics for 10.166.32.129 in VPN instance OAM ---
4 packet(s) transmitted, 0 packet(s) received, 100.0% packet loss
<KARBLRHTR01>

Ping with Source Interface IP:

<KARBLRHTR01>ping -a 10.166.36.1 -vpn-instance OAM 10.166.32.129
Ping 10.166.32.129 (10.166.32.129) from 10.166.36.1: 56 data bytes, press CTRL_C to break
56 bytes from 10.166.32.129: icmp_seq=0 ttl=64 time=8.723 ms
56 bytes from 10.166.32.129: icmp_seq=1 ttl=64 time=1.100 ms
56 bytes from 10.166.32.129: icmp_seq=2 ttl=64 time=66.176 ms
56 bytes from 10.166.32.129: icmp_seq=3 ttl=64 time=1.077 ms
56 bytes from 10.166.32.129: icmp_seq=4 ttl=64 time=1.016 ms

--- Ping statistics for 10.166.32.129 in VPN instance OAM ---
5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss
round-trip min/avg/max/std-dev = 1.016/15.618/66.176/25.452 ms
<KARBLRHTR01>

Regards,

Namit Joshi

[Albertjhonsen]

Useful thing . Thanks for share

[rossg2350]

I notice that the ping that works comes from a different IP subnet to the routing address - 10.166.36.1 against i take it 10.166.32.133 as you are trying to ping 10.166.32.129.

How is your subnet set up? Are the 2 routing interfaces in different subnets or the same subnet? If they are in the same subnet are you just not routing as the switch/router that is the source is not forwarding the packets due to the subnetting?

Just a thought.