[Freeswitch-users] double nat trouble

[Vitalie Colosov]

Try to set NDLB-force-rport = true in your internal profile and see if that
helps.

NDLB-force-rport

This will force FreeSWITCH to send SIP responses to the network port from
which they were received. *Use at your own risk!* For more information see NAT
Traversal <http://wiki.freeswitch.org/wiki/NAT_Traversal>.

<param name="NDLB-force-rport" value="true|safe"/>


http://wiki.freeswitch.org/wiki/Sofia_Configuration_Files#NDLB-force-rport

Regards,
Vitalie

2012/4/4 Brett Wilson <brett at launch3.net>

> Hey guys,****
>
> We have just temporarily moved our office, so our phones are no longer
> just on the office LAN. They are on a remote lan, both sides behind NAT and
> I’m trying to get them working right but I am having trouble. I have things
> working to the point where I can call to the POTS or to an extension on the
> local network back home just fine. The problem is that the remote phones do
> not receive sip messages behind the nat. It seems to me that freeswitch is
> sending the messages to the sip port the phones are configured with, and
> not the NAT port that can be seen when viewing the registrations status.
> The nat ports are very high numbers. I suspect if FS was to send messages
> to those ports, it would get through the foreign nat and reach the phone.*
> ***
>
> ** **
>
> On the FS side, I am using pfsense as the firewall, and have port forwards
> set up to the fs box. I am using a dynamic ip with dyn-dns-like service and
> am using that domain name in the fs internal/external profiles for the
> ext-sip-ip and ext-rtp-ip variables. I have upnp turned off but it does not
> make any difference anyway.****
>
> ** **
>
> Strangely, I was actually able to place a call from one remote phone to
> another once earlier, but it must have been a fluke because I haven’t had
> it working after that.****
>
> ** **
>
> What am I missing here?****
>
> ** **
>
> *******************************************
> *Brett Wilson*
> *IT Department*
> *Launch 3 Ventures, LLC*
> 134 Myer Street
> Hackensack, NJ 07601
> *Phone:* 877.878.9134
> *Fax:* 646.536.3866
> *Email:* Brett.Wilson at launch3.net
> *AOL IM:* Brett.Wilson at launch3.net
> www.Launch3.net <http://www.launch3.net/>
> *www.Launch3telecom.com <http://www.launch3telecom.com/>*
> *******************************************
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> ****
>
> ** **
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
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>
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