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SMTP / Port Forwarding not working

Posted on 2011-02-22
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Last Modified: 2012-05-11
Having an issue with what I thought was your average port forwarding. Just recently upgraded my Netgear WNDR3700 to DD-WRT v24-sp2-std. Everything was going smooth until I decided to open ports to forward to my one server (SBS 2008 Standard). I noticed right off the bat that I was not able to get email via my Exchange 2007 Server via port 25, so I did a reverse DNS lookup on my IP and 3 out of 4 ports were reverse looking up but not SMTP (25).

Has anyone seen this before or am I missing something? I thought I was experienced in this realm but maybe not. I have included a screen shot as an attachment for reference of what exactly I'm talking about.

Thanks in advance for any help and support.

Sincerely,

Mike Johnson

dd-wrt-smtp-forwarding.pdf dd-wrt-smtp-forwarding.pdf
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Question by:dataflownetworks
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Rhyseh earned 500 total points
ID: 34958283
Your configuration looks correct to me. Have your tried upgrading the firmware?
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by:dataflownetworks
ID: 34958335
Update!  Just got off the line with Comcast Business, the config in my router was corrupt, go figure. Thanks Rhyseh.

Mike
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