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Netmeeting w/ both people behind Linksys BEFSR41 routers

M

marbar2284

Junior Member
If we are both behind these routers, then how do we use netmeeting together? How do you get past the local ip to the public ip to connect to each other?

please let me know

ps. both computer are on winXP pro

thanks
mar
 
The only way I have gotten it to fully work with voice and video is to have both machines on the DMZ. You might also have a look at the in the dslreports linksys forum for more info on configuring it with port triggering/forwarding if you want to avoid putting your machines in DMZ
 
NetMeeting does not work fully behind NAT, it's a POS protocol and requires both hosts to be accessible on random high ports.
 
I'm having the same problem with Netmeeting, as well as Speakfreely with my brother, except I have an 8 port SMC Barricade router and he has a D-Link 704 router. He has his in a DMZ and he can hear me speaking but I can't hear him. I haven't open any ports, but I'm not sure I know how to do so. I checked out practicallynetworked.com and they have a port list to open for NetMeeting that goes like this:

H.323 compliant video player,
NetMeeting 2.0, 3.0, Intel Video Phone
(Watch Out! Opens a wide port range!)
(Incoming calls are not possible
due to NetMeeting assigning ports dynamically.)
OUT TCP 1720
IN UDP 1024 65534 [use H.323 protocol if available]
OUT UDP 1024 65534 [use H.323 protocol if available]
IN TCP 1024 1502 [use H.323 protocol if available]
OUT TCP 1024 1502 [use H.323 protocol if available]
IN TCP 1504 1730 [use H.323 protocol if available]
OUT TCP 1504 1730 [use H.323 protocol if available]
IN TCP 1732 65534 [use H.323 protocol if available]
OUT TCP 1732 65534 [use H.323 protocol if available]
OUT TCP 1503 1503
OUT TCP 1731 1731
IN TCP 1503 1503
IN TCP 1731 1731

I'm not sure how to set that up with my Barricade. I go to the setup page of my Barricade under my Browser at 192.168.123.254 and under "Special Aps", what do I type in the "Trigger" and "Incoming Ports"? There are so many of the incoming and outgoing ports for both TCP and UDP that I'm not sure if I have to enter all or just a few...? Any help?

Anyway, the relative pages on practicallynetworked.com are thePort List, Opening Ports, and nullHandling Special Applications.

*Edit* I forgot to mention that he has a legacy ISA SB16 that might be the problem? Also, I just put myself in a DMZ and the Speakfreely echo server works so I think Netmeeting should work too. However, its quite troublesome to have to put myself in a DMZ everytime I wanna talk to my bro...any other ideas?
 
If the Barricade only opens ports from a trigger, it won't work. What that does is when you send out a packet to a certain ip through the trigger port, the Barracade will open up the specified port for return packets from the same ip. Because videoconferencing uses a wide range or ports, triggering won't work.

You need a router where you can permanently open or forward ports.

Caveat: If you forward that many ports to one machine on the network, the other machines won't work properly. May not even be able to surf internet. So the answer is to put the videoconferencing machine on DMZ. Not a secure solution but there is no good home solution to this problem. I run ZoneAlarm permanently on medium protection. Apps seem to have no problem with that. Then I temporarily switch that machine to DMZ when I want to use Netmeeting or run a server. I've spent a lot of time trying to figure out a safer solution but can't find one that doesn't cost a fortune.
 
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