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Hello all, me again: I have a box with two Nic cards on it. What I will be doing is taking a packet coming in on one nic, encapsulating it, ...
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  1. #1
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    Jul 2008
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    Queue all traffic...even if not destined for local machine


    Hello all, me again:


    I have a box with two Nic cards on it. What I will be doing is taking
    a packet coming in on one nic, encapsulating it, and then sticking it
    on the other card. I know how to Queue traffic destined for that
    machine (iptables --insert INPUT 1 --in-interface eth+ -j QUEUE). But how do I
    get traffic not destined for itself? --insert FORWARD 1 doesn't seem
    to work. I enabled forwarding by (echo 1 > /proc/sys/net/ipv4/ip_forward), is there something else I need to do?

    Do I need to look at promiscuous mode?

    Thanks for the help.

  2. #2
    Just Joined!
    Join Date
    Jul 2008
    Posts
    11
    I have verified that Wireshark is picking up the packets. Also, if I do an iptables -t nat --insert PREROUTING -j QUEUE it works. However, everything that I have read says that you shouldn't do this as it might have unattended consequences.

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