I thought with iptable -L |grep udp I will find out which ports are
open for the rtp stream, .... but I cannot get this info from here, or
at least I cannot interpret it:
# iptables -L |grep udp
ACCEPT udp -- anywhere anywhere state
RELATED,ESTABLISHED
LOG udp -- anywhere anywhere limit: avg
3/min burst 5 LOG level warning tcp-options ip-options prefix
`SFW2-FWDdmz-DROP-DEFLT '
LOG udp -- anywhere anywhere limit: avg
3/min burst 5 LOG level warning tcp-options ip-options prefix
`SFW2-FWDext-DROP-DEFLT '
LOG udp -- anywhere anywhere limit: avg
3/min burst 5 LOG level warning tcp-options ip-options prefix
`SFW2-FWDint-DROP-DEFLT '
LOG udp -- anywhere anywhere limit: avg
3/min burst 5 LOG level warning tcp-options ip-options prefix
`SFW2-INdmz-DROP-DEFLT '
ACCEPT udp -- anywhere anywhere udp
dpts:ndmp:dnp
ACCEPT udp -- anywhere anywhere udp
dpt:mgcp-callagent
ACCEPT udp -- anywhere anywhere udp dpt:4569
ACCEPT udp -- anywhere anywhere udp dpt:5036
ACCEPT udp -- anywhere anywhere udp dpt:sip
LOG udp -- anywhere anywhere limit: avg
3/min burst 5 LOG level warning tcp-options ip-options prefix
`SFW2-INext-DROP-DEFLT '
LOG udp -- anywhere anywhere limit: avg
3/min burst 5 LOG level warning tcp-options ip-options prefix
`SFW2-INint-DROP-DEFLT '
REJECT udp -- anywhere anywhere reject-with
icmp-port-unreachable
However, /etc/rc.d/SuSEfirewall2_final status includes the line:
0 0 ACCEPT udp * * ::/0
::/0 udp dpts:10000:20000
Why I am looking for that?
My voice connection to phones is usually working, however, we have now
also video phones and they do not receive any Video packages, ....
bye
Ronald
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