Forum Discussion

F5Team's avatar
F5Team
Icon for Cirrus rankCirrus
Jan 17, 2024

ICMP packets on a TCP monitor

We observed an issue where the pool members are on cloud had ICMP disabled. F5 had route and able to telnet to member but the tcp monitor still marked down. Once the ICMP was enabled on the server en...
security
Mohamed_Salah_'s avatar
Mohamed_Salah_
Icon for MVP rankMVP

can you check if this node is added in any other pool that contains ICMP monitor? since you are taking packet capture on the node IP, and the node might be existing as a pool member in multiple pools.

F5Team's avatar
F5Team
Icon for Cirrus rankCirrus
Jan 26, 2024

The Node doesn't have any other monitor

  • Mohamed_Salah_'s avatar
    Mohamed_Salah_
    Icon for MVP rankMVP
    Jan 27, 2024

    yes, you mentioned that before, I'm asking if the node is a member of any other pool?

    • F5Team's avatar
      F5Team
      Icon for Cirrus rankCirrus
      Jan 29, 2024

      Nodes are newly added. They are not part of any other pool.

      • F5Team's avatar
        F5Team
        Icon for Cirrus rankCirrus
        Jan 30, 2024

        Tested the same again in the lab.

        Default monitor has NOTHING.

        Added a new node to the Pool. It's not part of any other pools.
        Pool Monitor is set to only TCP and enabled tcpdump and we still see ICMP packets between F5 and node.

        Is this expected?