4 Oct
2004
4 Oct
'04
7:20 a.m.
At 10:59 PM 10/3/2004, Michael Shuler wrote:
SER doesn't seem to be returning the Unauthorized
message to the correct
port, but it does get at least the right IP.
It does return the replies to correct port. RFC3261 mandates the replies
to be sent to the port advertised in Via, which is implicitely 5060.
Solid clients are symmetric and advertise it as specified in RFC3581;
then SER sends replies back symmetrically. You can force it do it
anyhow using force_rport at the risk of confusing non-symmetric clients.
-jiri
You will notice the REGISTER
is received on 216.43.27.75:56059 but the Unauthorized is sent back to
216.43.27.75:5060. Is there any way to get SER to send back to the correct
port so symmetrical NAT will work correctly?
U 216.43.27.75:56059 -> 198.88.216.87:5060
REGISTER sip:bwsys.net SIP/2.0..Via: SIP/2.0/UDP
192.168.1.119:5060;branch=z9hG4bK2309979991..From: SafeWayLine1
<sip:SafeWayLi
ne1@bwsys.net>;tag=1023220770..To: SafeWayLine1
<sip:SafeWayLine1@bwsys.net>..Call-ID: 3966543944@192.168.1.119..CSeq: 15
REGIS
TER..Contact: <sip:SafeWayLine1@192.168.1.119:5060>..max-forwards:
70..user-agent: Azacall200..expires: 60..Content-Length: 0..
..
#
U 198.88.216.87:5060 -> 216.43.27.75:5060
SIP/2.0 401 Unauthorized..Via: SIP/2.0/UDP
192.168.1.119:5060;branch=z9hG4bK2309979991;received=216.43.27.75..From:
SafeWayLine
1 <sip:SafeWayLine1@bwsys.net>;tag=1023220770..To: SafeWayLine1
<sip:SafeWayLine1@bwsys.net>;tag=ceb07c727e9d78dd71cafc9196e2f4
a7.535c..Call-ID: 3966543944@192.168.1.119..CSeq: 15
REGISTER..WWW-Authenticate: Digest realm="bwsys.net", nonce="416067d1a3983
6e4022698b6217bab605b990a18", qop="auth"..Server: Sip EXpress router
(0.8.14 (i386/linux))..Content-Length: 0....
----------------------------------------
Michael Shuler, C.E.O.
BitWise Communications, Inc. (CLEC) And BitWise Systems, Inc. (ISP)
682 High Point Lane
East Peoria, IL 61611
Office: (217) 585-0357
Cell: (309) 657-6365
Fax: (309) 213-3500
E-Mail: mike(a)bwsys.net
Customer Service: (877) 976-0711
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--
Jiri Kuthan http://iptel.org/~jiri/