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Hops in trace

olly ahmed
Level 1
Level 1

Hi all,

I have a question. In my production network I saw in a layer-3 switch there is configured a default route pointing towards next-hop ip (virtual IP of firewall) and the next-hop ip block is configured in a VLAN in the layer-3 switch. When I do trace I do not see the firewall ip address in the trace. Here you can tell that might be firewall is denying ping. But my observation is, if firewall is denying ping then I could see some timeout result for a hop in the trace path. But I did not see any timeout in the trace path rather I saw another IP address which is not the next-hop ip that we configured. Can anyone help to understand what is happening here ?

3 Replies 3

Deepak Kumar
VIP Alumni
VIP Alumni

Hi,

How you configured your firewall ? This is in Bridge mode or Gateway mode ?

Regards,

Deepak Kumar

Regards,
Deepak Kumar,
Don't forget to vote and accept the solution if this comment will help you!

Hi Deepak,

Actually I do not know as firewalls are being managed by another team. I just saw from my layer 3 switch that for default-route next-hop IP is the firewall's virtual IP where two firewall is working as active and passive mode.

Good observation. 

Regards,
Deepak Kumar,
Don't forget to vote and accept the solution if this comment will help you!
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