For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

jsilverius_2370's avatar
jsilverius_2370
Icon for Nimbostratus rankNimbostratus
Dec 03, 2015

Unable to ping VIP from outside, but can ping it form F5

Hello, Let me start with saying this is my first time with F5 and I have very limited knowledge of networking too (yeah.. double whammy). So please help me with this (mostly likely) simple issue.   ...
application delivery
BIG-IP
jsilverius_2370's avatar
jsilverius_2370
Icon for Nimbostratus rankNimbostratus
Dec 03, 2015

Hi Amine, Thanks for your response. tcpdump for external did not produce any traffic. I did the same tcpdump for eth0 (the management adapter. This is used as gateway) and I can see responses. Looks like F5 is receiving the ping request but not responding back for 12.1.1.2. It is responding back to 12.1.1.1 (one of the self-ip). I also validated that ICMP is enabled for 12.1.1.2.

 

10.67.1.38 is the mgmt IP

 

10.67.3.55 is the my laptop

 

12.1.1.2 is the VIP

 

10.67.1.43 is node1

 

10.67.1.45 is node2

 

(You also can see F5 is pinging node1 and node2 for health check).

 

Tcpdump response -