Re: [GnomeMeeting-list] Problem with "Remote user is busy"



There is a problem here, you don't have any rules for the RTP port
range.

Without that, most calls with fails with no audio and no video being
transmitted.

I suggest you continue investigating because it hides another problem.

The remote user is busy problem could come from the H.245 port range not
being forwarded.

Le ven, 14/05/2004 à 14:46 -0600, Doug Beattie a écrit :
> Thanks to all. I went onto IRC and received help there.
> 
> I don't know why, but I didn't require all the iptable rules from FAQ
> 7.1.3 to get things working.
> 
> Should anyone need to know what to use on a debian stable 2.4.18-bf2.4
> kernel I only used:
> --------------------------------------------------------------------------
> #!/bin/bash
> # where the iptables binary resides (see "type -p iptables")
> IPTABLES=/sbin/iptables
> #
> # = your public Internet-Device
> OUT_DEV=eth0
> #
> # = your internal Internet-Device
> IN_DEV=eth1
> #
> # = Host to which the incoming H323 is being forwarded
> IN_HOST=192.168.<octet3>.<octet4> # put in your last 2 octets here
> #
> #TCP_LISTENING_PORT - H.323 port
> # H323 Port
> TCP_LISTENING_PORT=1720
> #
> #TCP_PORT_RANGE - H245, if no tunneling is made
> TCP_PORT_RANGE=30000:30010
> #
> $IPTABLES -t  nat -I PREROUTING 1 -i $OUT_DEV -p tcp --dport
> $TCP_LISTENING_PORT -j DNAT --to-dest $IN_HOST
> $IPTABLES -I FORWARD 1 -p tcp -i $OUT_DEV --dport $TCP_LISTENING_PORT -d
> $IN_HOST -j ACCEPT
> #
> # activate masquerading on public interface
> $IPTABLES -t nat -A POSTROUTING -o $OUT_DEV -j MASQUERADE
> #
> $IPTABLES -t nat -I PREROUTING 1 -i $OUT_DEV -p tcp --dport
> $TCP_PORT_RANGE -j DNAT --to-dest $IN_HOST
> $IPTABLES -I FORWARD 1 -p tcp -i $OUT_DEV --dport $TCP_PORT_RANGE -d
> $IN_HOST -j ACCEPT
> #
> --------------------------------------------------------------------------
> On Fri, May 14, 2004 at 09:43:05AM -0600, Doug Beattie wrote:
> > Damien:
> > 
> > Re:
> > On Fri, May 14, 2004 at 05:34:45PM +0200, Damien Sandras wrote:
> > > Are you sure that the status of that user is different from "Do Not
> > > Disturb"?
> > 
> > He has clicked on the "Call" button and under it the "Available" option
> > is clicked as enabled.
> > 
> > Another of his friends can call him without any problems.
> > 
> > > 
> > > If that user has placed his GM in "Do not disturb", all calls are
> > > automatically rejected. The same happens when you call users who are
> > > already in a call.
> > > 
> > 
> > Where else should I/he check to make sure the problems is not on the
> > other end?
> > 
> > Is there something I can look for with ethereal to see if packets are
> > getting out and returned as a busy?
> > 
> > Thanks for your reply. I look forward to hearing back again.
> > 
> > Doug
> > 
> > > 
> > > Le ven, 14/05/2004 ? 09:31 -0600, Doug Beattie a ?crit :
> > > > Hello. I am new to this list and Gnomemeeting so I apologize if this
> > > > question has been answered before. I have read through the FAQ and
> > > > did not find an answer to my problem.
> > > > 
> > > > I have GnomeMeeting 1.0.1 (from the new SuSE 9.1 release) and am able
> > > > to have a friend of mine connect to me without problem. I can talk,
> > > > post messages, and even transmit video to him.
> > > > 
> > > > The problem I am having is that every time I try to connect to my
> > > > friend, or anyone from the ils.seconix.com list, I get a "Remote user is
> > > > busy" message as soon as I execute the call to the person.
> > > > 
> > > > I searched "The mail.gnome.org Archives" for the term "busy" without
> > > > finding any results.
> > > > 
> > > > The system running GnomeMeeting sits behind a debian gateway/router on a
> > > > 192.168.x.x subnet. The debian gateway/router system is connected with
> > > > a static IP directly to the internet via a DSL modem.
> > > > 
> > > > I set up the following rules for iptables on the debian system:
> > > > (Based on the date from the FAQ sections 7.1.2 and 7.1.3. "What
> > > > iptables rules could I use for GNU/Linux?")
> > > > ------------------------------------------------------------------------------
> > > > #!/bin/bash
> > > > #
> > > > # Set up general H.323 port for TCP
> > > > iptables -t nat -I PREROUTING -p tcp --dport 1720 -j DNAT --to
> > > > 192.168.13.13:1720
> > > > iptables -I FORWARD -p tcp -d 192.168.13.13 --dport 1720 -j ACCEPT
> > > > iptables -I FORWARD -p tcp -s 192.168.13.13 --sport 1720 -j ACCEPT
> > > > #
> > > > # Set up H.245 TCP port range 30000:30010
> > > > iptables -t nat -I PREROUTING -p tcp --dport 30000:30010 -j DNAT --to
> > > > 192.168.13.13:30000:30010
> > > > iptables -I FORWARD -p tcp -d 192.168.13.13 --dport 30000:30010 -j
> > > > ACCEPT
> > > > iptables -I FORWARD -p tcp -s 192.168.13.13 --sport 30000:30010 -j
> > > > ACCEPT
> > > > #
> > > > #
> > > > # Set up RTP port range 5000:5007 (2 audio, 2 video - RTP and RTCP)
> > > > iptables -t nat -I PREROUTING -p tcp --dport 5000:5007 -j DNAT --to
> > > > 192.168.13.13:5000:5007
> > > > iptables -I FORWARD -p tcp -d 192.168.13.13 --dport 5000:5007 -j ACCEPT
> > > > iptables -I FORWARD -p tcp -s 192.168.13.13 --sport 5000:5007 -j ACCEPT
> > > > #
> > > > #
> > > > # Set up Gate Keeper port range 5010:5013
> > > > iptables -t nat -I PREROUTING -p tcp --dport 5010:5013 -j DNAT --to
> > > > 192.168.13.13:5010:5013
> > > > iptables -I FORWARD -p tcp -d 192.168.13.13 --dport 5010:5013 -j ACCEPT
> > > > iptables -I FORWARD -p tcp -s 192.168.13.13 --sport 5010:5013 -j ACCEPT
> > > > #
> > > > #
> > > > # Set up SIP port range 5060:5080
> > > > iptables -t nat -I PREROUTING -p tcp --dport 5060:5080 -j DNAT --to
> > > > 192.168.13.13:5060:5080
> > > > iptables -I FORWARD -p tcp -d 192.168.13.13 --dport 5060:5080 -j ACCEPT
> > > > iptables -I FORWARD -p tcp -s 192.168.13.13 --sport 5060:5080 -j ACCEPT
> > > > #
> > > > ------------------------------------------------------------------------------
> > > > 
> > > > Does anyone know why I would be getting the "Remote user is busy"
> > > > condition when the remote use is known to be available?
> > > > 
> > > > Thanks for any help you may offer me.
> > > > 
> > > > Doug
> > > > -- 
> > > > _______________________________________________
> > > > GnomeMeeting-list mailing list
> > > > GnomeMeeting-list gnome org
> > > > http://mail.gnome.org/mailman/listinfo/gnomemeeting-list
> > 
> > 
> > 
> > > _______________________________________________
> > > GnomeMeeting-list mailing list
> > > GnomeMeeting-list gnome org
> > > http://mail.gnome.org/mailman/listinfo/gnomemeeting-list
> > 
> > 
> > -- 
> > _______________________________________________
> > GnomeMeeting-list mailing list
> > GnomeMeeting-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gnomemeeting-list
> 
> -- 
> _______________________________________________
> GnomeMeeting-list mailing list
> GnomeMeeting-list gnome org
> http://mail.gnome.org/mailman/listinfo/gnomemeeting-list

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