WRT54GL won't allow incoming access

Discussion in 'Networking Issues' started by msims, Mar 13, 2007.

  1. msims

    msims LI Guru Member

    I searched the forums and couldn't find any answers. If there's already a post about this, would someone link to it for me?

    Anyways, I set my WRT54GL and all seems well. I can access everything out to the internet on my wired and wireless machines.

    Behind this router I run a FreeBSD mailserver with apache and an Ironport spam server.

    I noticed the following day that I was unable to reach my webmail from work. Nor was I able to ssh to my unix machine.

    That night I realized that I was no longer receiving incoming email.

    I turned everything off on the router, Firewall, VPN, etc. The router is set to Gateway. I did port forwarding for ports 22, 25, 80 and 143 to the IPs of my Ironport/mail server. Nothing. I just couldn't get access past the router.

    Nor am I able to remotely access the router's config page or access it with my wireless, only through a wired machine can I access the config page. It's like the router isn't setting up the way I'm telling it to.

    My firmware is the most recent.

    Any suggestions? :(

    edit: network info

    All on the same public network

    front of router xx.xx.xx.3
    back of router xx.xx.xx.114
    mail server xx.xx.xx.146 / gateway xx.xx.xx.114
    ironport xx.xx.xx.251 / gateway xx.xx.xx.114

    Outgoing is good. Incoming denied.
  2. ifican

    ifican Network Guru Member

    Could be inbound connection limit or the router just got hung up. First off i would reboot the router and see if you can reproduce the issue. Once you get a better idea as to what it might be if you can recreate it you can focus on getting to exactly whats causing the issue.
  3. msims

    msims LI Guru Member

    Rebooting the router didn't help. Rebooted my DSL modem as well.

    Incoming connections can get through when my servers initiate an outgoing request.

    It's only incoming requests initiating that don't get through. I'm at a loss.

    I've opened Port Forwarding to ports 1 - 65000 just to cover everything.

    I have tcpdump on and watching for any incoming connections. Nothing gets through. :frown:

    Right now I'm just wanting mail to get through. Port 25, nothing.

    Firewall, disabled. VPN, disabled. No Access Restrictions set.
  4. roadkill

    roadkill Super Moderator Staff Member Member

    Firmware is official Linksys I presume?
  5. msims

    msims LI Guru Member

    4.30.9, from the Linksys website. I also notice that even with logging turned on, it records nothing.

    This, from the forums on Linksys's site, indicate an issue with logging:

    No incoming/outgoing logs

    But I'm hesitant to install 3rd party software just yet.

    I've sent Linksys an email with my issue.
  6. roadkill

    roadkill Super Moderator Staff Member Member

    from my experience 3rd party firmware are far better at doing certain things (e.g. qos,logs,graphs)
    I only saw Linksys official firmware for about 3-5 minutes before I decided to move to an alternative one
    I think that because there are alternative firmwares Linksys isn't so keen on releasing updates to their own...
    you wont have any problems going back to Linksys original firmware
  7. msims

    msims LI Guru Member

    Hmmm...ok. Perhaps I will try your suggestion.

    Also, I noticed my router responds to an SSH request. Is there a default username to this? Are we able to ssh in to the router?

  8. roadkill

    roadkill Super Moderator Staff Member Member

    same as web interface username can be root
  9. frenchy2k1

    frenchy2k1 LI Guru Member

    I think the problem is that you cannot have the same subnet in the fron (WAN port) and back (Wireless/LAN) of your router. It just confuses it.

    Get your public IP on the front (WAN) side and use a private network (192.168.X.X or 10.X.X.X) on the LAN side.
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