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Posted Jan 16, 2012
12:11:52 AM
Port forwarding with router

I finally got my router (E3000) to do the routing insted of my RG. Now I am unable to get certain ports unblocked (like 80, 10000 for webmin, etc.) I set up the router on DMZ Plus mode. I have read that AT&T blocks some ports.

 

Is there any work-around for this? I was thinking of calling in anad asking them to unblock or I will leave as I need these ports to be unblocked..

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Jan 16, 2012 12:36:00 PM
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Thanks.

It actually wasn't the router, but the RG. Forgot to remove the ports on the RG so when we added them to the router, they wouldn't work. Once those were removed from the RG, the router worked perfectly.
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Port forwarding with router

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Jan 16, 2012 7:21:14 AM
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If you have your router in DMZ mode, the following ports are blocked by AT&T:

Inbound

• Ports 8000-8015

• (If you are using wireless STBs) Port 443

 

Outbound

• Port 25 (unblockable on request)

 

No other ports are blocked.  If you can't communicate, you haven't configured your router correctly.

 

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Jan 16, 2012 12:36:00 PM
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Thanks.

It actually wasn't the router, but the RG. Forgot to remove the ports on the RG so when we added them to the router, they wouldn't work. Once those were removed from the RG, the router worked perfectly.

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Jan 16, 2012 11:27:58 PM
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SomeJoe, do you have any idea if the usurpation of those inbound ports applies also to static IP addresses ("User Defined Supplemental Networks")? I can't think of any reason why it should apply beyond the main IP, but that doesn't count for much.

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Jan 17, 2012 7:52:19 AM
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No inbound ports should be blocked on purchased static IPs.

The outbound port 25 might still be blocked, but can be unblocked on request.

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Jan 20, 2012 2:52:34 PM
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My internet seems a whole lot slower after having the router do the routing. YouTube vids start buffering very fast and then slow down and even stall at times (same with Vimeo, Netflix, etc.) When I do a speedtest, I got a third of what I should be getting.


Could the routing be the issue?

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Jan 20, 2012 4:39:14 PM
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If your router is working properly and configured properly, you should not see any slowdown.

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Mar 12, 2014 12:51:30 PM
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So I can use a higher port # and its not blocked?
I did a port scan and I have no open ports!
I have the E3500 Router and I've been trying to do port forwarding for days no success!
If some could explain how this is done with my router please!

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