tracepath only working one way on LAN

Discussion in 'Linux Networking' started by Greg Akins, Jun 26, 2003.

  1. Greg Akins

    Greg Akins Guest

    OK, I'm going to try this one more time. Any insight would be greatly
    appreciated.

    I've got two Mandrake 9.0 boxes (and a Windows 2000 Pro box) on a private
    LAN. Mandrake Box1 can ping/telnet/tracepath/etc... to Box2 without
    problem. However, Mandrake Box2 cannot tracepath/telnet/etc.. to Box1; it
    can ping Box1.

    Box1 causes the same behavior when tracert from the Win2kP box as well.

    I'm using IP addresses, rather than names, so I don't think it's DNS.
    It's all local traffic, so I don't think it firewall.

    It might be some access control on Box1 (I have a hosts.allow and
    hosts.deny set). However, they appear OK.

    I realize I might not be giving enough information here. But am not
    really sure where to go next. Could somebody give me some help tracking
    down the problem.

    Again, any info would be greatly appreciated

    -greg ->
     
    Greg Akins, Jun 26, 2003
    #1
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  2. Greg Akins

    Jem Berkes Guest

    I've got two Mandrake 9.0 boxes (and a Windows 2000 Pro box) on a
    What error message do you see?
     
    Jem Berkes, Jun 26, 2003
    #2
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  3. Greg Akins

    Greg Akins Guest

    I get a "no reply" message, and finally a "too many hops" message

    Thanks for the reply.

    Also, I tried arping (?) because it was mentioned in the tracepath man
    pages... It seemed to find Box1 with no problem.

    -greg
     
    Greg Akins, Jun 26, 2003
    #3
  4. Greg Akins

    Greg Akins Guest

    So I've been trying to get more information on why tracepath won't
    work between boxes (when ping does).

    DNS isn't in play since I'm using IP addresses
    Firewall rules? I don't have any set for the box... But maybe I
    accidentally configured something at sometime... Anywhere to check
    this? ( I deleted hosts.allow and hosts.deny)

    Anything else that might be causing this problem? Are there any logs
    for eth0 that might give me more information about what's happening to
    the traffic?

    -greg ->
     
    Greg Akins, Jun 26, 2003
    #4
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