You just have to be careful because the force rport can mess up phones that properly handle NAT. If you plan to use only this model of phone - or only phones that require force rport - then you'll be fine. If you find that you have a mix of phone models then it's best to create a separate profile to handle phones that are NAT friendly and then keep the current profile for phones that need the force rport.<br>
<br>-MC<br><br><div class="gmail_quote">On Fri, May 11, 2012 at 12:18 AM, Miha <span dir="ltr"><<a href="mailto:miha@softnet.si" target="_blank">miha@softnet.si</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Hi @Michael,<br>
<br>
after I put <br>
<pre><param name="NDLB-force-rport" value="true"/>
in my internal sip profile FS send back to right dst_port.
If I use this on live fs server, could this be causing any problems on registered phones or any easier abuse?
Thanks!
Miha
</pre><div><div class="h5">
<br>
On 5/11/2012 8:25 AM, Miha wrote:
<blockquote type="cite">
Hi @Michael,<br>
<br>
thanks for your reply.<br>
<br>
I also noticed after I send you an email that this is NAT issue.
Phone send registration packet on port 5060 (src port is 50006),
but FS do not reply back to port 50006 but instead reply on 5060
due to this phone does not receive 401 and and send another
REGISTER packet.<br>
<br>
How can I deal whit this issue?<br>
<br>
Thank you very much for all your help!<br>
<br>
p.s.: I also send you separately wireshark trace that you can see
this issue.<br>
<br>
Regards,<br>
Miha<br>
<br>
On 5/10/2012 8:30 PM, Michael Collins wrote:
<blockquote type="cite">It's definitely a NAT issue. The phone is not
responding to your 401 and is instead just sending another
REGISTER packet. Notice that FS is responding on port 5060. Is
that the port your phone is expecting to receive on?<br>
<br>
-MC<br>
<br>
<div class="gmail_quote">On Thu, May 10, 2012 at 5:30 AM, Miha <span dir="ltr"><<a href="mailto:miha@softnet.si" target="_blank">miha@softnet.si</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Hi,<br>
<br>
here is pastebin of siptrace (<a href="http://pastebin.freeswitch.org/19029" target="_blank">http://pastebin.freeswitch.org/19029</a>).<br>
<br>
Phone on local network are registered on FS. After I put
between local<br>
network and Phone router, phones are unable to registered on
FS.<br>
<br>
On other softswitch which is not FS phones are registering
(same port,<br>
same scenario, etc.).<br>
<br>
Phones are SPA922.<br>
<br>
What could be causing the problem?<br>
<br>
Thanks!<br>
<br>
Miha<br>
<br>
<br>
<br>
<br>
<br>
<br>
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