Tomato, Transmission, DMZ & iptables

Discussion in 'Tomato Firmware' started by Giorgos, Jun 8, 2014.

  1. Giorgos

    Giorgos Network Newbie Member

    Hello everyone,

    I have been using Tomato for a few years now, but I recently switched my ISP and I can't get transmission to operate correctly, so I was hoping that someone could help me with the firewall rules. My setup is as follows:

    A Pirelli AV4202N connected to the VDSL line that handles the PPP connection (IP: This is wired (ethernet) to an Asus RT-N66U running Tomato (IP:, set as a DMZ host) which then distributes the connection to the devices in my LAN (IPs 192.168.2.XXX) (So the Asus has a WAN IP and a LAN IP

    Roughly it's like this:

    Now, I have found many posts about setting the iptables for Transmission to operate correctly on the Asus, but nothing seems to work for me, the port reports that it is closed (and it takes forever to connect to peers). I was hoping that someone could give me some info on configuring the iptables rules, since I'm completely ignorant on iptables :)


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