28 Nov
2005
28 Nov
'05
5:57 a.m.
Jiri Kuthan wrote:
At 09:49 25.11.2005, Klaus Darilion wrote:
indeed, you are right, except in the NAT case. If the client is behind
NAT, the proxy can not establish a TCP connection to the client. AFAIK,
for TCP based NAT traversal, the initial TCP session will be kept open.
The initial session however will typically made to proxyip:5060.
regards
klaus
Jiri Kuthan wrote:
I think that actually the case without 5060 is fairly usual -- SER
opens up a TCP connection to a downstream agent. In that case,
SER uses ephemeral port number and frequently the agent registered
with an ephemeral number too (even if it used 5060, it may be behind
a NAT) What is tcp_analyze?
On a side-note: there is no easy TCP fitlering expression as both sides
of TCP connections may use ephemeral ports.
Yes, but usually at least one socket (the incoming) uses port 5060.