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Technical Forum Quicklinks: No Replies | Active-Not Solved | Recent Solutions

Can't reach Gateway on F5 from another device

RicardoSeikka
Nimbostratus
Nimbostratus

‎01-Apr-2021 06:02

So I have a lab that runs with F5 IPSec Tunnel with another firewall on the other side. I tried to ping to another side from F5, it works. But when I tried to ping from a switch that connected to F5, it's not worked.

Here's the topology and some configurations from F5:

0691T00000C2heLQAR.png

 

0691T00000C2hepQAB.png

 

0691T00000C2heuQAB.png

 

0691T00000C2hevQAB.png

 

0691T00000C2heqQAB.png

 

Is there some configuration that I miss? If yes please let me know.

Thank you

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1 REPLY 1

Nikoolayy1
MVP
MVP

‎06-Apr-2021 05:29

See article for "Diagnosing IPsec Tunnel Issues" as from what you say the F5 device does not add the traffic from the switch to the tunnel, if you dont see issues and a tcpdump also show that F5 is sedning the traffic to the other device in the VPN tunnel then see why the replies don't come back as the issue could be not from the F5 config but the Firewall VPN config.

 

https://techdocs.f5.com/en-us/bigip-14-1-0/big-ip-tmos-tunneling-and-ipsec-14-1-0/diagnosing-ipsec-tunnel-issues.html

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