/* HINT: Search archives @ http://www.indyramp.com/masq/ before posting!
/* ALSO: Don't quote this header. It makes you look lame :-) */
Hi everyone!..
im doing a setup whit a firewall on linux redhat 7.0 whit kernel 2.2.18.
The schema is a VoIP (Voice over IP), an the comunicatios are UDP.
example setup:
[GW VoIP] -> [Linux FW] ->
[inet] -> [Remote GW VoIP]
10.10.0.2 10.10.0.1
200.200.200.200 100.100.100.100
well the schema seems to be easy, but i have here my problem:
src 10.10.0.2 src port 5010 -> dst 100.100.100.100 dst udp port
5010
after the masq process the packet:
src 200.200.200.200 src port 61321 -> dst 100.100.100.100 dst udp
port 5010
(the source port from the masq box are ephemeral!, not fixed!)
v
so when the reply come from the Remote GW:
src 100.100.100.100 src port 5010 -> dst 200.200.200.200 dst udp
port 5010
here is the problem, the protocol use by Clarent VoIP have a fixed
stream comunication over UDP port 5010!.. so when the last packet come
from 100.100.100.1000 to port 200.200.200.200 5010 the kernel send a
icmp port unreachable, logical but sad for me.
is there any way to fix this issue? i have to develop a module? if the
solution is develop a kernel masq module where to start is the question.
i have develop some kernel modules, but not for masq.
Thanks.
Ezequiel,
--
/*********************************************************
class Ezequiel
{
protected:
UssrLabs (http://www.ussrback.com)
AlternativaLabs (http://www.alternativagratis.com)
public:
PGP FingerPrint: 945C D30B AEB8 55FE 3237 7FED 834F A814
};
*********************************************************/
_______________________________________________
Masq maillist - [EMAIL PROTECTED]
Admin requests can be handled at http://www.indyramp.com/masq-list/ --
THIS INCLUDES UNSUBSCRIBING!
or email to [EMAIL PROTECTED]
PLEASE read the HOWTO and search the archives before posting.
You can start your search at http://www.indyramp.com/masq/
Please keep general linux/unix/pc/internet questions off the list.
