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<DIV><FONT face=Arial size=2>Yes, it's a work around, but not a
solution.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks.</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=ricvil@epm.net.co href="mailto:ricvil@epm.net.co">Ricardo Villa</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=boman122@yahoo.com
href="mailto:boman122@yahoo.com">Bo</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=serusers@lists.iptel.org
href="mailto:serusers@lists.iptel.org">serusers@lists.iptel.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, April 01, 2003 3:13
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Serusers] Strange
response</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Westell DSL routers also change the source
port. Thats why you need to forward port 5060 on the NAT device to the
ATA.</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=boman122@yahoo.com href="mailto:boman122@yahoo.com">Bo</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=serusers@lists.iptel.org
href="mailto:serusers@lists.iptel.org">serusers@lists.iptel.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, April 01, 2003 2:25
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Serusers] Strange
response</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Hi,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have tested cisco ATA186 (private IP) with
SER under different circumstances. With Linksys and D-link router, there
were no problem. But with Lioncom ADSL router, a strange thing happened. In
this case, the ATA is having a private IP 192.168.5.2 and the SIP port
number is the default 5060. The public IP of the ADSL connection
was 195.226.252.124. The following is the traces from ngrep. As you can see,
the Lioncom router forwarded (NAT) the SIP REGISTER with port 30150 while
SER sent the response back to port 5060. So the ATA couldn't receive the
response at all. What maybe the problem?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>#<BR>U 195.226.252.124:30150 ->
192.168.3.29:5060<BR> REGISTER sip:sip.abc.com SIP/2.0..Via:
SIP/2.0/UDP 192.168.5.2:5060..From: <sip:6701892@si<BR>
p.abc.com;user=phone>..To:
<sip:6701892@sip.abc.com;user=phone>..Call-ID: <A
href="mailto:1781909739@1">1781909739@1</A><BR> 92.168.5.2..CSeq: 1
REGISTER..Contact: *..Expires: 0..User-Agent: Cisco ATA v2.15 ata18x
(0209<BR> 27a)..Content-Length: 0....<BR>#<BR>U 192.168.3.29:5060
-> 195.226.252.124:5060<BR> SIP/2.0 401 Unauthorized..Via:
SIP/2.0/UDP 192.168.5.2:5060;received=195.226.252.124..From:
<s<BR> ip:6701892@sip.abc.com;user=phone>..To:
<sip:6701892@sip.abc.com;user=phone>;tag=d907c<BR>
037823644515dfe0ede38ca9976.9b53..Call-ID: <A
href="mailto:1781909739@192.168.5.2..CSeq">1781909739@192.168.5.2..CSeq</A>:
1 REGISTER..WWW-Authen<BR> ticate: Digest realm="sip.abc.com",
nonce="3e89f40b00000000e3fd8eedb58e5662ca62981749bb0006<BR> ",
algorithm=MD5..Server: Sip EXpress router (0.8.10
(i386/linux))..Content-Length: 0..Warning:<BR> 392
192.168.3.29:5060 "Noisy feedback tells: pid=10613
req_src_ip=195.226.252.124 in_uri=sip:s<BR> ip.bmx-inc.com
out_uri=sip:sip.abc.com via_cnt==1"....<BR></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial
size=2>Bo</DIV></BLOCKQUOTE></BLOCKQUOTE></FONT></BODY></HTML>