[Serusers] reply to port 5060

[David Lubarski]

Hi,


I have a problem using SER, i have a client behind CheckPoint FW, when 
the client tries to register, SER receives the SIP REGISTER message and 
SER reply to the source IP and source PORT, but because the client is 
behind CheckPoint FW if the source port is not 5060 the FW blocks it, so 
i need  SER to reply not to the source port of the client but to port 5060.


i'll attach ngrep on the SER server:



client sends REGISTER to the SER server at 192.168.0.161:5060.

U 2008/06/12 21:36:01.654005 10.6.67.10:31472 -> 192.168.0.161:5060
REGISTER sip:213.8.57.218 SIP/2.0..Via: SIP/2.0/UDP 
10.6.67.10:31472;branch=z9hG4bK-d87543-de5ac063e
9293020-1--d87543-;rport..Max-Forwards: 70..Contact: 
<sip:200 at 10.6.67.10:31472;rinstance=82602d40693
d48a6>;expires=0..To: "test1"<sip:200 at 213.8.57.218>..From: 
"test1"<sip:200 at 213.8.57.218>;tag=5c6b793
a..Call-ID: NmI4MTUyMWY5MTEwYTI3ZjY2ZTE2ZTMzNzk5ZGFmZWI...CSeq: 5 
REGISTER..Allow: INVITE, ACK, CANC
EL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO..User-Agent: 
X-Lite release 1011s stamp 41
150..Authorization: Digest 
username="200",realm="localhost",nonce="48516daafb5a3406078621 
<http://www.snapanumber.com/>9a55fdb4908
9064386",uri="sip:213.8.57.218",response="b8501a2d0c096b934320be23363dee32",algorithm=MD5..Content-L 

ength: 0....
#

SER server response to the source IP and source port

U 2008/06/12 21:36:01.654992 192.168.0.161:5060 -> 10.6.67.10:31472
SIP/2.0 200 OK..Via: SIP/2.0/UDP 
10.6.67.10:31472;branch=z9hG4bK-d87543-de5ac063e9293020-1--d87543-;
rport=31472..To: 
"test1"<sip:200 at 213.8.57.218>;tag=40c9dbfbe83fe4e1cec231af33432933.321f..From: 
"tes
t1"<sip:200 at 213.8.57.218>;tag=5c6b793a..Call-ID: 
NmI4MTUyMWY5MTEwYTI3ZjY2ZTE2ZTMzNzk5ZGFmZWI...CSeq:
5 REGISTER..Server: OpenSER (1.3.2-notls (i386/linux))..Content-Length: 
0....

but i need to response to port 5060 and not the source port , i'm not 
using rport, i also talk to CheckPoint service and they claim that they 
are working according RFC 3261, and that my SER server should reply to 
port 5060

any suggestions?

Thanks In Advance,

David Lubarski,