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error message - invalid icmp

  • 20-11-2006 12:56PM
    #1
    rymus
    Registered Users, Registered Users 2 Posts: 8,819 ✭✭✭


    Getting an error message that I cant find squat about on google. Anyone have any ideas? It's coming up every so often on the screen of a Fedora 3 box.

    The specifics; The Fedora box is 192.168.1.250, 192.168.1.1 is an ISDN router which forwards traffic bound for the internet onto a dsl router, which is 192.168.3.254
    192.168.1.1 sent an invalid ICMP type3, code error 3 to a broadcast 192.168.1.255 on eth0.

    Cheers.


Comments

  • #2
    aidan_walsh
    Closed Accounts Posts: 17,208 ✭✭✭✭aidan_walsh


    http://www.iana.org/assignments/icmp-parameters

    ICMP Type 3 is Destination Unreachable, Code 3 Port Unreachable. Its looking to me like a firewall rule blocking something going out, and the ISDN is sending back an error.


  • #3
    rymus
    Registered Users, Registered Users 2 Posts: 8,819 ✭✭✭rymus


    Odd, the server doesnt have a firewall configured on it. I was wondering if it was the recent addition of the eircom netopia on 192.168.3.254 that was causing the problem, where the eircom box was broadcasting via the isdn router... Only seems to be a problem since the netopia went in a few weeks ago.


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