Re: [Partysip-dev] Partysip problems with multiple streams

[Aymeric Moizard]

If you have several stream, there should be several rules inserted:
One for audio and others for video and witheboard streams.

If you have a log file to better understand the issue, it would be great.
(with option -d 6 -L partysip.log)

What I think is that when you insert the first rule, the proxy is
working fine but then, when you try to insert new other rules, the
iptables commands fail saying:

firewall:/home/jack# /sbin/iptables -D FORWARD -t filter -p udp -d 192.168.1.8 
--dport 30001
iptables: Bad rule (does a matching rule exist in that chain?)

Thus, only the first rule is inserted.

You can try to get the missing port in the perl script from the string
sent by partysip and then modify the rules so that it would insert a
cleaner rule.

Let me know if this work and send me the new script if it is successfull.
Thanks,
Aymeric

On Thu, 15 Jan 2004, Craig Graham wrote:

> I've started trying to get partysip to work (properly- I got it working part
> way last year and gave up for a while!)
>
> I have a few machines at home running MS Messenger. There is a Linux box
> running Partysip acting as the gateway/NAT box. At the office, there are a
> few XP machines, again running MS Messenger, behind an Intertex IX66 box
> which is acting as a NAT and SIP server.
>
> >From the office, we can set up a multistream session to someone on a machine
> that is directly connected to the net- we can do audio, video and
> Messenger's "whiteboard". From home, however, I can only set up a voice
> connection. And that has to be done manually- Messenger does not show the
> other party as being logged in.
>
> I wasn't able to get the iptables-server to work; it compiles and runs in
> direct mode but I cannot see how to get it to listen on the relevant port (I
> think 25990). Instead I'm running a shell script that someone posted. When I
> try to run the whiteboard, the shell script receives and executes the
> following line;
>
> -t nat -A PREROUTING -p udp --destination-port 30001 -j
> DNAT --to-destination 10.1.1.3:27314
>
> Looking at the output of iptables, the following has appeared;
>
> Chain FORWARD (policy ACCEPT)
> target     prot opt source               destination
> ACCEPT     udp  --  0.0.0.0/0            10.1.1.3           udp dpt:27314
>
> This would seem to suggest that the iptables side is working (although why
> is there no mention of the port 30001?).
>
> Can anyone suggest a next step? Versions are below.
>
>
> The Linux box is running Mandrake9.2. It has libosip2-2.0.5 installed. If I
> type partysip -V I get
>
> Server header:      WellX/partysip-2.1.0
> Server version:     Partysip/2.1.0
> Global Config File  /usr/local/etc/partysip/partysip.conf
> Server built:       Jan  3 2004 11:03:24
> Server's interface: O.1
> Architecture:       32-bit
> Server compiled with....
>  -DSTDC_HEADERS
>  -DHAVE_ASSERT_H
>  -DHAVE_CTYPE_H
>  -DHAVE_DLFCN_H
>  -DHAVE_FCNTL_H
>  -DHAVE_MALLOC_H
>  -DHAVE_SEMAPHORE_H
>  -DHAVE_SIGNAL_H
>  -DHAVE_STDARG_H
>  -DHAVE_STDDEF_H
>  -DHAVE_STDIO_H
>  -DHAVE_STDLIB_H
>  -DHAVE_STRING_H
>  -DHAVE_STRINGS_H
>  -DHAVE_SYS_SEM_H
>  -DHAVE_SYS_SIGNAL_H
>  -DHAVE_SYS_SOCKET_H
>  -DHAVE_SYS_TIME_H
>  -DHAVE_SYS_TYPES_H
>  -DHAVE_TIME_H
>  -DHAVE_UNISTD_H
>  -DPSP_SERVER_INSTALL_DIR=/usr/local
>
> --
> Dr. Craig Graham, Software Engineer
> Advanced Analysis and Integration Limited, UK. http://www.aail.co.uk/
>
>
>
>
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