Re: Linux router and NetMeeting

1999-08-30 Thread ferret


On Mon, 30 Aug 1999 [EMAIL PROTECTED] wrote:

> 
> 
> I think someone needs to write an IP masq helper module for Netmeeting. I
> just got the port specs from M$'s site, and I'm looking into how to do it
> right now. I'll post what I have in a few days (Don't have time to do any
> coding during work days. :< ), and hopefully...
> I could also use someone to help me test the thing. :>
 
Okay.. I just looked at the kernel sources and little bits of
documentation, and I'm completely stumped on how to actually write the
ip_masq modules.

So here's the ports Netmeeting uses:

389 Internet locator server (TCP)
522 User location server (TCP)
1503T.120 (TCP)
1720H.323 call setup (TCP)
1731Audio call control (TCP)
DYN H.323 call control (TCP)
DYN H.323 streaming RTP (UDP)

The information is at
http://support.microsoft.com/support/kb/ARTICLES/Q158/23.asp



> On Mon, 30 Aug 1999, Carlos Santos wrote:
> 
> > Here's my problem (please help if you can):
> > 
> > I've setup a Linux to route between my intranet and the Internet (through a
> > cable modem). I'm using IP Masquerading, which is working fine and has been
> > for a long time. Now, i'm trying to connect to a friend of mine through
> > Netmeeting and i can't get the router to let sound go both ways (i'm using
> > my intranet NT server, that goes through a Linux router, that connects to
> > the net by cable modem). I call my friend, he accepts the connection, i
> > speak through my microphone and he hears me ok but i can't hear him. It
> > seems some kind of restriction at the ip masquerading level but i can't
> > figure out what. Ftp is working fine, telnet, http, you name it. But i
> > can't get Netmeeting to work.
> > 
> > Any ideas ?
> > Thanks,
> > Carlos.
> > 
> > 
> > 
> > 
> > 
> > 
> > -
> > CARLOS SANTOS  (ICQ: 21537583)
> > NETOSFERA: http://www.netosfera.pt  
> > Tel(Phone): (+351 53 276998)
> > Fax: (+351 53 274255)
> > Braga - Portugal
> > 
> > 
> > -- 
> > Unsubscribe?  mail -s unsubscribe [EMAIL PROTECTED] < /dev/null
> > 
> 
> 


Re: Linux router and NetMeeting

1999-08-30 Thread ferret


I think someone needs to write an IP masq helper module for Netmeeting. I
just got the port specs from M$'s site, and I'm looking into how to do it
right now. I'll post what I have in a few days (Don't have time to do any
coding during work days. :< ), and hopefully...
I could also use someone to help me test the thing. :>

On Mon, 30 Aug 1999, Carlos Santos wrote:

> Here's my problem (please help if you can):
> 
> I've setup a Linux to route between my intranet and the Internet (through a
> cable modem). I'm using IP Masquerading, which is working fine and has been
> for a long time. Now, i'm trying to connect to a friend of mine through
> Netmeeting and i can't get the router to let sound go both ways (i'm using
> my intranet NT server, that goes through a Linux router, that connects to
> the net by cable modem). I call my friend, he accepts the connection, i
> speak through my microphone and he hears me ok but i can't hear him. It
> seems some kind of restriction at the ip masquerading level but i can't
> figure out what. Ftp is working fine, telnet, http, you name it. But i
> can't get Netmeeting to work.
> 
> Any ideas ?
> Thanks,
> Carlos.
> 
> 
> 
> 
> 
> 
> -
> CARLOS SANTOS  (ICQ: 21537583)
> NETOSFERA: http://www.netosfera.pt  
> Tel(Phone): (+351 53 276998)
> Fax: (+351 53 274255)
> Braga - Portugal  
> 
> 
> -- 
> Unsubscribe?  mail -s unsubscribe [EMAIL PROTECTED] < /dev/null
> 


Re: Linux router and NetMeeting

1999-08-30 Thread Bob Nielsen
This is because the router uses NAT and the packets arriving at your
friend's computer appear to come from your router, not your NT server. 
I'm not familiar with Netmeeting, but if it tries to create a return
connection, this may not work.  Several other protocols do this and only
some of them are supported by Linux IP masquerading via modules which
are created when you compile your kernel. 

My router runs 2.0.37 which supports this for cuseeme, irc, 
ftp, quake, vdolive and real audio.  I tried ICQ, but didn't have any
luck.  I suspect this is what is happening to you with Netmeeting.

Bob


On Mon, Aug 30, 1999 at 07:00:20PM +0100, Carlos Santos wrote:
> Here's my problem (please help if you can):
> 
> I've setup a Linux to route between my intranet and the Internet (through a
> cable modem). I'm using IP Masquerading, which is working fine and has been
> for a long time. Now, i'm trying to connect to a friend of mine through
> Netmeeting and i can't get the router to let sound go both ways (i'm using
> my intranet NT server, that goes through a Linux router, that connects to
> the net by cable modem). I call my friend, he accepts the connection, i
> speak through my microphone and he hears me ok but i can't hear him. It
> seems some kind of restriction at the ip masquerading level but i can't
> figure out what. Ftp is working fine, telnet, http, you name it. But i
> can't get Netmeeting to work.
> 
> Any ideas ?
> Thanks,
> Carlos.
> 
> 
> 
> 
> 
> 
> -
> CARLOS SANTOS  (ICQ: 21537583)
> NETOSFERA: http://www.netosfera.pt  
> Tel(Phone): (+351 53 276998)
> Fax: (+351 53 274255)
> Braga - Portugal  
> 
> 
> -- 
> Unsubscribe?  mail -s unsubscribe [EMAIL PROTECTED] < /dev/null
> 

-- 
Bob Nielsen Internet: [EMAIL PROTECTED]
Tucson, AZ  AMPRnet:  [EMAIL PROTECTED]
DM42nh  http://www.primenet.com/~nielsen