duplicate incoming traffic

Discussion in 'Tomato Firmware' started by dangral, Oct 16, 2008.

  1. dangral

    dangral Addicted to LI Member

    I have a vonage ATA ( sitting behind a Tomatoed Linksys WRT54GL. What I'd like to do is have the router duplicate all incoming traffic destined for port 10000 and send it to another Linux box ( on the network, with the intention of capturing CallerID data from the incoming packets. What network commands should I use to achieve this?

    Thanks in advance!
  2. jersully

    jersully LI Guru Member

    Put the Vonage adapter and capturing PC on a hub hanging off your router. Promiscuous mode on the Linux box will watch all traffic and you'll be able to do what you want with the data.

    Or... get a caller ID box? If you're looking for historical information, Vonage's website updates the call log immediately.
  3. dangral

    dangral Addicted to LI Member

    I'm trying to do this without buying additional hardware. I already have the packets going through the router to the vonage device, is it difficult to merely duplicate the incoming packets on port 10000 and send them to another IP as well?
  4. mstombs

    mstombs Network Guru Member

    To duplicate packets I think you need to build/load the iptables "TEE" target, probably easier to borrow hub...
  5. dangral

    dangral Addicted to LI Member

    Thanks. Not the answer I was hoping to hear, but thanks.
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