Check this one out:<div><a href="http://wiki.freeswitch.org/wiki/NAT_Traversal#NDLB-connectile-dysfunction">http://wiki.freeswitch.org/wiki/NAT_Traversal#NDLB-connectile-dysfunction</a></div><div><br></div><div>-MC<br><br>
<div class="gmail_quote">On Mon, Nov 7, 2011 at 11:30 PM, fieldpeak <span dir="ltr"><<a href="mailto:fieldpeak@gmail.com">fieldpeak@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Dear Friends,<br>
<br>
i met a problem that call a registered user behind NAT, i need FS send<br>
INVITE message to the port of the NAT device from which the registered<br>
user sent out REGISTRATION but not according to the CONTACT header.<br>
<br>
see the wiki, i enable below paramter,<br>
<param name="NDLB-force-rport" value="true"/><br>
<br>
>From the wireshark trace, it shows FS received the REGISTERATION<br>
message from remote port 20438, however, the INVITE message still sent<br>
to the port(20347) inside "Contact", it looks the paramter<br>
"NDLB-force-rport" did not effect, Could anyone help for this issue,<br>
thanks a lot!<br>
<br>
Below is the registeration info from FS output (press F9),<br>
<br>
<br>
Call-ID: <a href="mailto:1721091027@10.33.48.203">1721091027@10.33.48.203</a><br>
User: <a href="mailto:13580358068@124.193.106.104">13580358068@124.193.106.104</a><br>
Contact: "user" <<a href="http://sip:13580358068@61.144.248.77:20347" target="_blank">sip:13580358068@61.144.248.77:20347</a>><br>
Agent:<br>
Status: Registered(UDP)(unknown) EXP(2011-11-08 14:38:02) EXPSECS(152)<br>
Host: freeswitch<br>
IP: 61.144.248.77<br>
Port: 20438<br>
Auth-User: 13580358068<br>
Auth-Realm: 124.193.106.104<br>
MWI-Account: <a href="mailto:13580358068@124.193.106.104">13580358068@124.193.106.104</a><br>
<br>
Cheers!<br>
BR,<br>
Charles<br>
<br>
<br>
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</blockquote></div><br></div>