RTP traffic matching

RTP traffic matching

[Francois Dessart]

Hello,

Is there an easy way to match RTP/UDP traffic?

Thanks.

Francois.

Re: RTP traffic matching

[Antony Stone]

On Thursday 17 October 2002 11:50 am, Francois Dessart wrote:

> Hello,
>
> Is there an easy way to match RTP/UDP traffic?

If you mean RDP / UDP, then it's easy:

iptables -A FORWARD -p rdp -s a.b.c.d -d w.x.y.z -j ACCEPT
iptables -A FORWARD -p udp -s a.b.c.d -d w.x.y.z -j DROP
etc....

If you didn't mean RDP, can you give us a reference to tell us what RTP is ?

Antony.

-- 

Normal people think "if it ain't broke, don't fix it".
Engineers think "if it ain't broke, it doesn't have enough features yet".

Re: RTP traffic matching

[Francois Dessart]

> > Is there an easy way to match RTP/UDP traffic?

> If you didn't mean RDP, can you give us a reference to tell us what
RTP is ?

RTP (Real Time Protocol) is used for example with SIP for VoIP traffic.

Is it possible to match it with iptables?

Thanks

Francois.

Re: RTP traffic matching

[Antony Stone]

On Thursday 17 October 2002 4:11 pm, Francois Dessart wrote:

> > > Is there an easy way to match RTP/UDP traffic?
> >
> > If you didn't mean RDP, can you give us a reference to tell us what
> > RTP is ?
>
> RTP (Real Time Protocol) is used for example with SIP for VoIP traffic.
>
> Is it possible to match it with iptables?

From your original posting I assume it works over UDP; what port numbers does 
it use ?

Antony.

-- 

If you want to be happy for an hour, get drunk.
If you want to be happy for a year, get married.
If you want to be happy for a lifetime, get a garden.

Re: RTP traffic matching

[Sebastian Zander]

Francois Dessart wrote:

> Hello,
> 
> Is there an easy way to match RTP/UDP traffic?
> 


Hi Francois,

Once upon a time I wrote a module for RTP. Its not up to date with

netfilter and somewhat experimental but you can try it:
http://www.fokus.gmd.de/research/cc/glone/employees/sebastian.zander/private/netfilter-rtp-patch.tgz

Cheers,

Sebastian

-- 
Sebastian Zander                         E-mail: zander@fokus.fhg.de
FhI FOKUS / Global Networking (GloNe)    Tel: +49-30-3463-7287
Kaiserin-Augusta-Allee 31                Fax: +49-30-3463-8287
D-10589 Berlin, Germany                  www.fokus.fhg.de/usr/sebastian.zander