[Serusers] SER on masqueraded/NAT connection

[Craig Graham]

I have a Linux box at home acting as a masquerading/NAT gateway for a few
Windows PCs, and have installed SER on there in order to use MS Messenger to
talk to people outside.

SER appears to be working in that I can get Messenger up on two PCs, connect
to SER and set up a voice connection between the two PCs. However, I cannot
connect to people offsite.

Relevant IPChains entries are
target     prot opt     source                destination           ports
ACCEPT     udp  ----l-  anywhere             anywhere              any ->
5060
ACCEPT     udp  ------  anywhere             anywhere              any ->
7070:7080

I have made no changes to the default SIP configuration; it is working as
installed by the rpm package ser-0.8.10-1.i386.rpm. A browse through the
mailing list archive and through the admin guide doesn't show anything
obvious. No errors are reported to /etc/messages or /etc/syslog and serctl
moni does not show anything that looks relevant.

Does anyone have any suggestions?

--
Dr. Craig Graham, Software Engineer
Advanced Analysis and Integration Limited, UK. http://www.aail.co.uk/