ā02-09-2016 06:07 AM - edited ā03-05-2019 03:18 AM
I'm unable to do traceroute, ping works. why is that? using ospf protocol, devices are connected using trunk ports so neighborship is eshtablished using SVI (not L-3 ports). how to fix it?
no ip redirects
no ip unreachables
no ip proxy-arp
no mop enabled
ā02-10-2016 12:01 AM
traceroute will not work for example throw gre tunnel
ā04-25-2016 05:50 AM
shouldn't traceroute work by default?
ā04-25-2016 06:03 AM
trace route is a layer 3 troubleshooting tool if its going across layer 2 trunks its not going to pick anything up , it sounds like you have layer 3 wrapped in layer 2 so trace wont see that as ip is encapsulated
ā04-22-2016 08:48 AM
could someone advise how to fix this traceroute issue?
ā04-25-2016 07:20 AM
Hi,
what is not working exactly?
Are you trying to traceroute to a Cisco device which has got "no ip unreachables" configured on an L3 interface? It will not reply then.
Or are you trying to traceroute over L2?
You could use
switch#trace mac ?
H.H.H 48-bit hardware address of source
interface Interface on which this source mac exists
ip Specify ip addresses
command then.
Best regards,
Milan
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide