15 Jul
2003
15 Jul
'03
2:56 p.m.
On Tuesday 15 July 2003 11:00, George KAPELIOS wrote:
Is anyone able to answer if SER could run without
problems behind a NAT ?
Running a server behind NAT is always a bad idea!
(Except you just want to serve the clients behind the NAT.)
In our test, the server is assigned with a private IP
address and port 5060/udp is open on the NAT router.
UAs are alway able to register through public IP
addresses, but sometimes there are call setup problems
(for example a UA is keep trying to call a registered
user until timeout, or at the receiver end a new call
rings for once or twice and then call is terminated
for "unknown reason").
Are your UAs only on the public side?
Do you use Record-Routing?
How do you make SER aware of its public IP? (Does your public IP change
regularly?)
etc. ...
Please follow http://www.iptel.org/ser/bugs/ on problem reports. In this case
a network dump could enlight us... and could increase your probability for an
answer.
Is any other port or range required to be open in the
NAT?
No.
Any knowledge or suggestions?
Suggestion: forget your server behind NAT.
If you want to set up a server behind the NAT to connect the users from behind
the NAT with the Internet, then please search the mailing list archives. This
solution includes many problems, and solutions depend on the used UAs and
mayn other factors.
Regards
Nils