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Internet phohe call from the masqueraded network
Hello,
I've got a program for Internet telephony named SpeekFreely. While it does work
on stand-alone machine connected to the ISP, it doesn't work properly when I
trying to connect to a foreing host (host F) from a host inside the masqueraded
network (host M).
1. M calls F - I get a connection, but the sound flows only in one direction -
from B to A.
2. F calls M - nothing happens on B.
It seems to be working the 2072 UDP (and may be TCP) port. I've tried to
configure port forwarding and fwmark-forwarding, I've read the man's and
HOWTO's, but with the same result :(
Here is my firewall ruleset (without any tricks with portfw and mfw):
myhost# ipchains -L
Chain input (policy ACCEPT):
Chain forward (policy DENY):
target prot opt source destination ports
MASQ all --------- localnet/24 anywhere n/a
Chain output (policy ACCEPT):
I wold be very grateful to anyone who can give an example of _working_ ruleset
for firewall/masquerading that allows direct connections between foreign and
masqueraded hosts.
Best regards,
Kostya