can telnet but not ping

Discussion in 'Linux Networking' started by Dho, May 14, 2006.

  1. Dho

    Dho Guest

    I have a host behind a router and a firewall, the firewall has been
    configured to accept connection from this host to a server. I can
    telnet to the server from the host but not ping!! How can layer 3 test
    fail and yet layer 7 pass with flying colors?
    Dho, May 14, 2006
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  2. Dho

    Bit Twister Guest

    Maybe the firewall drops ping packets. Mine does. :)
    Bit Twister, May 14, 2006
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  3. Dho

    Unruh Guest

    Proabably because your firewall is blocking pings.
    Unruh, May 14, 2006
  4. Dho

    jcw248 Guest

    R U blocking ICMP requests?
    jcw248, May 15, 2006
  5. Dho

    Dho Guest

    Yes, it does block ICMP requests. My objective is to connect to the
    server like as if I am inside the firewall and use it normally. The
    firewall has all of its ports open, for test purposes, when I try to
    connect to it, it asks me for my credentials, I then supply my
    credentials which I have cross-checked many times and they are fine.

    This still does not solve the problem
    Dho, May 16, 2006
  6. Dho

    Tauno Voipio Guest

    Come on: The ping requests *are* ICMP packets.
    Of course they do not work if ICMP is blocked.
    Tauno Voipio, May 16, 2006
  7. Dho

    Robert Guest

    A few questions.

    1. What type of firewall are you using?

    2. How do you know that all ports are open?
    If Ping is your only problem.......



    Smile... it increases your face value!
    Robert, May 16, 2006
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