Networking & Wireless forum

Question

Dlink router blocking port access?

by scudrunner24 / January 29, 2012 11:36 PM PST

I have a Dlink DIR-628 router attached to a Comcrap cable modem. I've hooked up a video security system and can see it on the LAN, but can't get to it from outside. I've tested ports using CANYOUSEEME.ORG but the router is either not responding or connection refused. I've tried all the standard ports (25, 80, 110...) I've opened the port in Port Forwarding. Is there some reason either Comcrap is blocking the input or is it my router?
Thanks

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All Answers

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Answer
Small world.
by R. Proffitt Forum moderator / January 30, 2012 1:30 AM PST

My video security started to work when I put the video security IP into the DMZ.

Sorry, I can't teach networking here. Please try this next as I found those systems do not document all the needed ports.
Bob

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Dlink router blocking port access?
by scudrunner24 / January 30, 2012 1:47 AM PST
In reply to: Small world.

Thanks for the reply. I had put the IP in the DMZ, but no luck. It seems like the modem or router is blocking any incoming requests. Or this from the log file....

UPnP renew entry 255.255.255.255 <-> 98.199.30.100:18004 <-> 192.168.0.253:18004 TCP timeout:-1 libminiupnpc'
UPnP renew entry 255.255.255.255 <-> 98.199.30.100:9000 <-> 192.168.0.253:9000 TCP timeout:-1 'libminiupnpc'
UPnP renew entry 255.255.255.255 <-> 98.199.30.100:2000 <-> 192.168.0.253:2000 TCP timeout:-1 'libminiupnpc'

If anyone would like to provide an interpretation.....
Thanks,

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Now that's odd.
by R. Proffitt Forum moderator / January 30, 2012 2:08 AM PST

When I use the DMZ I don't get such remapping. It's as if you had port forward still enabled as well as the DMZ.

Again, I can't teach networking here. I will share what I do to make my security DVRs work but that's it. Sorry if this upsets anyone.

From the top, I use the router defaults and NEVER USE WIFI FOR THE FIRST TRIAL. I change the IPs as needed then put the DVR/Security thing into the DMZ and I'm done. Works first time, every time.
Bob

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