Solved

SMTP / Port Forwarding not working

Posted on 2011-02-22
2
1,489 Views
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
0
Comment
Question by:dataflownetworks
2 Comments
 
LVL 3

Accepted Solution

by:
Rhyseh earned 500 total points
ID: 34958283
Your configuration looks correct to me. Have your tried upgrading the firmware?
0
 

Author Comment

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
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Imagine you have a shopping list of items you need to get at the grocery store. You have two options: A. Take one trip to the grocery store and get everything you need for the week, or B. Take multiple trips, buying an item at a time, to achieve t…
How to set-up an On Demand, IPSec, Site to SIte, VPN from a Draytek Vigor Router to a Cyberoam UTM Appliance. A concise guide to the settings required on both devices
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

929 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now