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Can not forward port 21 using Linksys WRT54G for Remote Administration

Posted on 2006-04-08
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Last Modified: 2013-11-29
Hello all,

Thank you in advance for any help you all can provide.

My issue is that I have recently upgraded to a Linksys WRT54G router (having the latest firmware installed) from an old Linksys 802.11b wireless router. On the network I currently have two wireless devices (one PC, one iPaq) and a wired (Cat5) "server". I use a program entitled "Remote Administrator v2.1" to connect remotely from work to my home PC. This application uses port 4899 in order to communicate. As a forward, please do not suggest other applications as this does everything I need it to do and more.

The issue I have is that the proxy server at work only allows traffic on port 21 (or FTP) to establish a tunnel of any kind. So, previously I told my old router that any traffic coming in on port 21 simply forward to port 4899 using IP 192.168.1.100 (servers’ static address). This worked great with no issues.

Now with this new router, I am doing the exact same forwarding routine but I can not establish a connection to port 4899 on 192.168.1.100. I believe it is because the router believes this is an FTP connection and is treating it as such (not forwarding).

Can anyone lend any suggestions on how I can tell this new router to forget about FTP and to use port 21 as a gateway to port 4899?

Many thanks,
HuBBie

P.S. - Anyone using a Linksys 802.11b router should definitely pickup a WRT54G. Other than this little issue, it is a beautiful (and reliable) device.  

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Question by:HuBBie36
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Expert Comment

by:masnrock
ID: 16407622
Did you turn on any of the virtual servers? Make sure they're all off, especially the FTP one.. might even need to delete them, but turning them off should be sufficient.
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Author Comment

by:HuBBie36
ID: 16407653
Thanks for your comment masnrock.

I can not see any "Virtual Server" options within the router settings. The only mention of the FTP service is under a heading "Access Restrictions" which enables me to set Access Policies. Here I have the ability to Block FTP however this will ban any traffic on port 21 and will kill it at the router. Again, it will not be forwarded.

I can not see a "disable" option anywhere...

Regards,
HuBBie
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Author Comment

by:HuBBie36
ID: 16441530
Hey all,

You won't believe it but after some research, I was able to set my "Remote Administrator v2.1"'s port to 21 and bang, it worked fine.

Regards,
HuBBie
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Author Comment

by:HuBBie36
ID: 16449810
Thank you GranMod
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