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Thread: iptables + ulogd + mirror port = server does not match packets

  1. #1
    Join Date
    Nov 2009
    Beans
    2

    iptables + ulogd + mirror port = server does not match packets

    I configured mirroring at border router from uplink interface to interface which is connected to server.
    I would like to match at server all packets which go through uplink interface.

    I tried
    "-A PREROUTING -p tcp -m tcp --tcp-flags SYN SYN -j ULOG --ulog-nlgroup 3 "
    at raw, mangle and nat.

    Server match only packets with dest. MAC address of this server.

    What I made wrong?

  2. #2
    Join Date
    Jan 2013
    Beans
    1

    Re: iptables + ulogd + mirror port = server does not match packets

    That's exactly what I am trying to do. I've been unable to find a solution. If someone can have a solution 3 years later.

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