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Wired Networks Thread, Ping Replying from Internal IP??? in Technical; Right.. this has got me stumped. We have a telephone system that uses an external sip trunk 83.166.160.240. From my ...
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    AIT
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    Ping Replying from Internal IP???

    Right.. this has got me stumped.

    We have a telephone system that uses an external sip trunk 83.166.160.240.

    From my workstation can ping and tracert it fine, (to node4).

    From the server at the customers location pinging 83.166.160.240 gets a reply from 10.0.0.74 (the SIP Server...), Hence the ping coming back as a proper reply from a different ip.

    from the sip server itself you cannot pint 83.166.160.240.

    Has anyone got any thoughts.

    I have tried the obvious of clearing arp. (but there were no arp entries for 83.166.160.240.)

    help would greatly be appreciated.

    Thanks

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    What OS, if it fails out you'd end up with it replying with an unreachable from the local address.

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    mac_shinobi (29th June 2012)

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    Quote Originally Posted by SYNACK View Post
    What OS, if it fails out you'd end up with it replying with an unreachable from the local address.
    Only time I have seen anything like what you describe is on windows 7 32 bit enterprise at work which gives me output something like below

    C:\> Ping A.B.C.D
    Pinging A.B.C.D with 32 bytes of data :
    Reply from D.E.F.G : Destination host unreachable
    Reply from D.E.F.G : Destination host unreachable
    Reply from D.E.F.G : Destination host unreachable
    Reply from D.E.F.G : Destination host unreachable

    Ping statistics for D.E.F.G :
    Packets : Sent = 4, Received = 4, Lost = 0 ( 0% Loss ),

    C:\>
    A.B.C.D is the ip address I am attempting to ping where as D.E.F.G is the ip address of either my computer or the likes
    Last edited by mac_shinobi; 29th June 2012 at 12:43 PM.

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    Is the default gateway set correctly?

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    A diagram would help understand the locations and paths...

    Rob

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