Hi George,
each proxy should fix what it detects. ProxyA will take care of the
traffic related to A (since it detects A as NATed) and ProxyB should
take care of traffic for B (as it sees B as nated). So, the 200 OK must
be fixed only by proxyB.
Regards,
bogdan
Papadopoulos Georgios wrote:
Hello all,
I need some advice from all you NAT experts. Assume that we have two
OpenSER proxies serving two different domains and they both use
nathelper. Also assume that their configuration is identical and looks
roughly like:
route {
...
record_route();
if (nat_uac_test("23")) {
if (method!="REGISTER" &&
!is_present_hf("Record-Route")) {
fix_nated_contact();
}
}
t_on_reply("1");
}
onreply_route[1] {
if (nat_uac_test("23")) {
fix_nated_contact();
};
}
clientA and clientB are both behind NAT. [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]> sends an INVITE to [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]> through proxyA:
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> -----> ProxyA -----> ProxyB
------> [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
ProxyA detects that clientA is behind NAT and fixes the contact.
ProxyB finds the Record-Route header, so it does not fix the contact.
My question is about how to handle the 200 OK. With this configuration
both proxies detect that clientB is behind NAT and the contact gets
fixed twice. Is there a way to avoid this?
thank you
George
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