routing loop

[B1naryPro]

I am on a subnet of 172.18.0.0. I am trying to get to 10.5.6.1. but when i ping I receive this is as the result
this was working before now something happened but what i don't know.

Pinging 10.5.6.1 with 32 bytes of data:
Reply from 10.4.1.254: TTL expired in transit.
Reply from 10.4.1.254: TTL expired in transit.
Reply from 10.4.1.254: TTL expired in transit.
Reply from 10.4.1.254: TTL expired in transit.

When i do a traceroute i get a loop. which is below
1 <10 ms <10 ms <10 ms 172.18.1.4
2 <10 ms <10 ms <10 ms 172.18.1.121
3 31 ms <10 ms 16 ms 172.20.1.5
4 15 ms <10 ms 16 ms 172.20.2.254
5 31 ms 15 ms 32 ms 10.4.1.10
6 <10 ms 15 ms <10 ms 10.4.1.254
7 <10 ms 16 ms <10 ms 10.4.1.10
8 15 ms <10 ms <10 ms 10.4.1.254
9 15 ms <10 ms 16 ms 10.4.1.10
10 <10 ms 16 ms <10 ms 10.4.1.254
11 47 ms 109 ms 125 ms 10.4.1.10
12 16 ms <10 ms <10 ms 10.4.1.254
13 15 ms 16 ms <10 ms 10.4.1.10
14 31 ms <10 ms 16 ms 10.4.1.254

The 10.4.1.10 is a cisco router 4000 series and 10.4.1.254 is an avaya switch. anyone know how to solve this. any help greatly appreciated.

JPBinary
MCSE, MCSA

 

[ChrisAC]

10.4.1.254 doesn't have a route to 10.5.x.x and so sends the packets through it's default route, which is back to 10.4.1.10. Check the routing on 10.4.1.254.

Chris.


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Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
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