Zoom ADSL + WRT54GL (Tomato 1.23) Port forwarding question

Discussion in 'Networking Issues' started by Derek, Mar 27, 2009.

  1. Derek

    Derek Addicted to LI Member

    Good Morning all,

    I have searched google and these forums, but can not seem to figure out what is going wrong with my port forwarding.

    Problem: Can not ssh to internal server.


    ADSL WAN line connected to the RJ11 jack on my Zoom x6 (model 5590C). Zoom router is currently set to FULL pure Bridged mode.

    Cat6 cable is connected to Port 1 on the Zoom router, the other end of the cable is connected to the WAN port of my WRT54GL (running Tomato v1.23). Other linux boxes are connected to the LAN ports of the WRT54GL.

    I am able to see the Internet from all computers on the Local Lan inside of the WRT54GL.

    In Tomato I see the Public WAN IP that is being passed to it via the Zoom router.

    WAN IP: 9x.xx.xx.xx

    LAN IP: 10.xx.xx.xx/28
    LAN DHCP: is on and working correctly.

    Port forwarding->Basic->Has the following (lets use port 55555):

    On |||| Proto |||| Src Addr |||| Ext Prots |||| Int Ports |||| Int Addr |||| Description

    X |||| TCP |||| [left blank] |||| 55555 |||| 55555 |||| 10.xx.xx.14 |||| ssh server

    Now I have no special Iptable rules added to the WRT54GL as of yet... since I can't ssh in yet either..

    The server have port 55555 entered in its /etc/ssh/sshd_config and I can access this by all computers on the internal LAN, so the server config is good. But I cannot access anything if I am coming in thru the WAN.

    nmap shows that all normal ports are filtered, which is good, but if I run:

    nmap -P0 -sV 9x.xx.xx.xx -p55555

    The reply is also filtered. When I try to ssh to my WAN IP from the WAN it times out.

    Tomato logs are not seeing the attempted scans, though iptables is reporting 'DROP's from other things on the Internet.

    When I dump the Tomato Iptables config it appears to be right to me and unfortunately I did not bring a copy of them to work with me today.

    Has anyone else had this problem? Is there anything that I need to explain further or that is not clear in my post?

    ANY input on this would be GREATLY appreciated, even if its just a link to something that might help.

    Thank you all in advance!
  2. mstombs

    mstombs Network Guru Member


    When you say "FULL pure bridged" you do mean PPPoE full bridge with the ppp endpoint in the Router?
  3. Derek

    Derek Addicted to LI Member

    Thank you and yes. The PPPoE is being handled by the WRT54GL only, the Zoom router is passing the PPPoE transparently.
  4. Derek

    Derek Addicted to LI Member

    Anyone else have any ideas, before I go out and buy a new adsl modem?
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