29 Mar
2005
29 Mar
'05
8:23 p.m.
Hello guys.
I have X-Lite client on WinXP, which in installed on the Virtual
Machine (VM), which in turn is installed under Linux host on the
public host nf034.jinr.ru (IP 159.93.29.34). For sharing single network
card between Linux host and Windows guest systems, VM uses the NAT
technology.
At first I run SER on Linux at nf034.jinr.ru:5060 and point them as a
proxy for X-Lite in its configuration menu.
I successfully logged X-Lite to the SER proxy server, and then looked
at the X-Lite diagnostic (URI to which X-Lite is assigned is
sip:test@nf034.jinr.ru):
====================== -- cut -- ======================
X-Lite release 1103m build stamp 14262
License key: 334EB1FDABF14B00BD22E1C2442210A4
Established SIP protocol listen on: 172.16.218.128:5060
Discovered Port Restricted Single Mapped Port Symmetric NAT Firewall
SIP: 172.16.218.128:5060
RTP: 172.16.218.128:8000
NAT: 159.93.29.34
Discovering external SIP port on symmetric firewall...
PROXY#0: 159.93.29.34:5060
SEND TIME: 29675015
SEND >> 159.93.29.34:5060
REGISTER sip:nf034.jinr.ru SIP/2.0
Via: SIP/2.0/UDP 159.93.29.34:5060;rport;branch=z9hG4bK2E70AA83DC6248CF85502BCD5E251FC7
From: Test User <sip:test@nf034.jinr.ru>;tag=1898047871
To: Test User <sip:test@nf034.jinr.ru>
Contact: "Test User" <sip:test@159.93.29.34:5060>
Call-ID: 3DE2CFB300024F7085AEB4169AF1E048(a)nf034.jinr.ru
CSeq: 48982 REGISTER
Expires: 1800
Max-Forwards: 70
User-Agent: X-Lite release 1103m
Content-Length: 0
====================== -- cut -- ======================
So, glance at the Contact field gives that X-Lite maps
172.16.218.128:5060 to the public IP 159.93.29.34 but with the *same*
port 5060! The same we can see at the SER 'location' table in
mysql/ser table:
+----------+----------------------------+
| username | contact |
+----------+----------------------------+
| test | sip:test@159.93.29.34:5060 |
+----------+----------------------------+
But, I have SER running exactly at the 159.93.29.34:5060 that leads to
the ports conflict. How can I resolve this situation?
Thank you!
--
Best regards,
Timur V. Elzhov
COO
Warelex LLC