vlc, firewall et Free

Salut,

sur 2 pc, j'ai le m=EAme fichier firewall.sh :

=2D--------------
#!/bin/sh

#----------- REMISE =E0 ZERO des r=E8gles de filtrage -----
iptables -F
iptables -t nat -F


#----------------- Default policy ----------------------

#connexions entrantes bloqu=E9es par d=E9faut
iptables -P INPUT DROP

#connexions destin=E9es =E0 =EAtre forward=E9es accept=E9es par defaut
iptables -P FORWARD ACCEPT

#connexions sortantes accept=E9es ar d=E9faut
iptables -P OUTPUT ACCEPT


#------------ DEBUT des r=E8gles de filtrage --------------

#loopback
iptables -A INPUT -i lo -j ACCEPT

#no ICMP (ping)
iptables -A INPUT -p icmp -j DROP

#established connections
iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

#SSH
iptables -A INPUT -p tcp --dport 22 -j ACCEPT

#VNC
iptables -A INPUT -p tcp --dport 5900 -j ACCEPT

#Rsync
iptables -A INPUT -p tcp --dport 873 -j ACCEPT
iptables -A INPUT -p udp --dport 873 -j ACCEPT

#t=E9l=E9 Free
iptables -A INPUT -p udp -s 212.27.38.253 -j ACCEPT
iptables -A OUTPUT -p udp --dport 554 -j ACCEPT

#Ekiga
iptables -A INPUT -p udp --dport 5060 -j ACCEPT
=2D-------------

Sur le pc1, je peux regarder la t=E9l=E9 de chez Free avec vlc et l'enregis=
trer=20
avec fricorder, avec le pc2, je dois d=E9sactiver le firewall pour y arrive=
r,=20
sinon je re=E7ois le message :

=2D-------------
$ vlc
VLC media player 0.8.6a Janus

** (.:3208): CRITICAL **: gtk_pizza_set_size: assertion `pizza !=3D NULL' f=
ailed

** (.:3208): CRITICAL **: gtk_pizza_set_size: assertion `pizza !=3D NULL' f=
ailed
Sending request: OPTIONS rtsp://mafreebox.freebox.fr/freeboxtv/stream?id=3D=
201=20
RTSP/1.0
CSeq: 1
User-Agent: VLC media player (LIVE555 Streaming Media v2006.03.16)


Received OPTIONS response: RTSP/1.0 200 OK
Cseq: 1
Server: fbxrtspd/1.0 Freebox minimal RTSP server
Public: DESCRIBE, SETUP, TEARDOWN, PLAY


Sending request: DESCRIBE rtsp://mafreebox.freebox.fr/freeboxtv/stream?id=
=3D201=20
RTSP/1.0
CSeq: 2
Accept: application/sdp
User-Agent: VLC media player (LIVE555 Streaming Media v2006.03.16)


Received DESCRIBE response: RTSP/1.0 200 OK
Cseq: 2
Content-Length: 181
Content-Type: application/sdp
Content-Language: fr
Server: fbxrtspd/1.0 Freebox minimal RTSP server


Need to read 181 extra bytes
Read 181 extra bytes: v=3D0
o=3DleCDN 1204640501 1204640501 IN IP4 kapoueh.proxad.net
s=3DFrance 2
i=3DFrance 2
c=3DIN IP4 0.0.0.0
t=3D0 0
m=3Dvideo 0 RTP/AVP 33
a=3Dcontrol:rtsp://212.27.38.253/freeboxtv/stream?id=3D201

Unable to determine our source address: This computer has an invalid IP=20
address: 0x0
Unable to determine our source address: This computer has an invalid IP=20
address: 0x0
Sending request: SETUP rtsp://212.27.38.253/freeboxtv/stream?id=3D201 RTSP/=
1.0
CSeq: 3
Transport: RTP/AVP;unicast;client_port=3D32772-32773
User-Agent: VLC media player (LIVE555 Streaming Media v2006.03.16)


Received SETUP response: RTSP/1.0 200 OK
Cseq: 3
Session: it70y92QfWaLbUXBMG5webbalmjd9NOi7L9wK1cQNdrPYfhALcXPeZPqbYtbC7j
Server: fbxrtspd/1.0 Freebox minimal RTSP server
Transport:=20
RTP/AVP;unicast;mode=3Dplay;destination=3D192.168.0.42;client_port=3D32772-=
32773;server_port=3D32768-32769


Sending request: PLAY rtsp://mafreebox.freebox.fr/freeboxtv/stream?id=3D201=
=20
RTSP/1.0
CSeq: 4
Session: it70y92QfWaLbUXBMG5webbalmjd9NOi7L9wK1cQNdrPYfhALcXPeZPqbYtbC7j
Range: npt=3D0.000-
User-Agent: VLC media player (LIVE555 Streaming Media v2006.03.16)


Received PLAY response: RTSP/1.0 200 OK
Cseq: 4
Session: it70y92QfWaLbUXBMG5webbalmjd9NOi7L9wK1cQNdrPYfhALcXPeZPqbYtbC7j
Server: fbxrtspd/1.0 Freebox minimal RTSP server


Sending request: TEARDOWN rtsp://mafreebox.freebox.fr/freeboxtv/stream?id=
=3D201=20
RTSP/1.0
CSeq: 5
Session: it70y92QfWaLbUXBMG5webbalmjd9NOi7L9wK1cQNdrPYfhALcXPeZPqbYtbC7j
User-Agent: VLC media player (LIVE555 Streaming Media v2006.03.16)


Received TEARDOWN response: RTSP/1.0 200 OK
Cseq: 5
Server: fbxrtspd/1.0 Freebox minimal RTSP server
=2D--------------------

Pourquoi ce "Unable to determine our source address: This computer has an=20
invalid IP address: 0x0"?

D'ailleurs lors de mes essais avec vlc, le voyant de mon switch clignote, m=
ais=20
rien ne s'affiche.

Sur le pc2, j'ai rajout=E9 la ligne
"iptables -A INPUT -p udp --dport 1234 -j ACCEPT"
pour les flux VideoLAN, mais =E7a n'a rien chang=E9.

Si qn a une id=E9e, j'ai le pc2 d'un ami chez moi jusqu'=E0 ce soir.

ciao
Klaus