Re: [GnomeMeeting-list] NAT Problem over VPN

[Randall Smith <randall tnr cc>]

Damien,

I appreciate your help.  I found the route add command for Windows 
(suprise) and got everything working.  It works suprisingly well over 
the ssh-ppp tunnel.  I say suprisingly b/c its udp over tcp.  Whoda thunk?

Randall

Damien Sandras wrote:
> Le dim, 04/07/2004 à 11:56 -0500, Randall Smith a écrit :
>
> [...]
>
>
> > 1. PC1 can ping PC3 and make TCP connections such as ssh.
> > 2. PC3 CANNOT connect to PC1 because I don't know how to alter the 
> > routing tables on Win2K and wouldn't be suprised if I couldn't.
>
>
> Then GM won't work. If PC3 can not connect to PC1, then PC3's GM won't
> be able to open the video and audio channels for transmission from PC3
> to PC1. Same for the H.245 channel which is not tunneled when using GM
> with NEtmeeting.
>
>
> > PC1(GM) calls PC3(NM).  PC3 answers and the call is connected.  Video 
> > does NOT show on PC3 (I don't know about audio), but video option in 
> > toolbar ungrays.  No video or audio on PC1.  Ethreal shows that TCP 
> > traffic is OK and UDP from PC1 -> PC3 is OK, but UDP from PC3 -> PC1 is 
> > sent to 192.168.3.2 which PC3 CANNOT RESOLVE!  PC3 should send its UDP 
> > packets through 10.7.74.145, but it appears that that NAT option in GM 
> > is not working (probably b/c its not a public IP).  So how can I make 
>
>
> Indeed, NAT translation only works with private IPs, it doesn't make
> sense for private to private calls.
>
>
> > this work.  Also, why does PC3 not show video from PC1 when I can see 
> > the UDP traffic arriving?
>
>
> If PC3 can not connect to PC1, I would be very suprised that the traffic
> arrives.
>
>
> > PC1 calls PC4.  PC4 answers.  PC4 shows video.  PC4 has no video or 
> > sound card (just used to test) and sends no udp packets out.
> >
> > If you can figure this out and you live in New Orleans, I'll buy you 
> > lunch :)
>
>
>
>
> > Randall
> >
> >
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