[Freeswitch-users] Multi-homed box - strange NAT question

[Brian West]

Without a full understanding of your network topology it's difficult to say.


On Thu, Jan 28, 2021 at 3:53 PM Jim Miller <jmiller at wndswp.net> wrote:

> Brian
>
> Not sure I 100% follow.  The clients are on the same /24 as the "internal"
> profile interface is on.  The only thing is they are behind a NAT.
>
> What led me to this was I had a previous configuration whereby the
> internal and external profiles were on the same interface IP. When the
> clients connected to the internal profile via an totally different public
> IP, but also behind a NAT it worked (registrations showed fs_nat and a
> fs_path properly).  However, for this configuration when I put the clients
> on a NAT that was on the same subnet as the internal and external shared IP
> it wouldn't work.  I thought maybe this was an issue with the profiles
> sharing the same IP.  Thus I split it to the configuration I documented
> below.  It makes me think that the NAT issue is related to the fact that
> the profile IP is on the same subnet as the NAT.
>
> Jim
> On 1/28/21 10:51 AM, Brian West wrote:
>
> You will require one profile per nat interface, you can't cross profiles
> between transit providers without it.
>
> /b
>
>
> On Thu, Jan 28, 2021 at 7:25 AM Jim Miller <jmiller at wndswp.net> wrote:
>
>> Hi Folks
>>
>> I'm running FreeSWITCH Version 1.10.3-release~64bit (-release 64bit) on
>> a FreeBSD 12.1 box.
>>
>> The issue I'm having is related to NAT, I'm sure no one has ever seen a
>> post on this topic....
>>
>> My configuration is a box that is multi homed with an Internet facing
>> interface and a private IP LAN interface.  The clients (Polycoms) are on
>> the private LAN interface but behind a NAT (pfsense) on this subnet.  If
>> I have the clients route directly to the FS box's private LAN without
>> NAT I can make this work but as soon as I NAT them (which I need to for
>> other reasons) I don't see the registrations show up with fs_path or the
>> other variables like I might expect.
>>
>> I've fiddled with the apply-nat-acl variable to no avail.
>>
>> Thoughts?
>>
>> Thanks
>>
>> Jim
>>
>>
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>
>
> --
>
> Brian West | Co-founder and Developer
>
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-- 

Brian West | Co-founder and Developer

Need Commercial support? email sales at freeswitch.com

FreeSWITCH Solutions | 17345 Civic Drive #2531 Brookfield, WI 53045
<https://maps.google.com/?q=17345+Civic+Drive+%232531+Brookfield,+WI+53045&entry=gmail&source=g>

Email: brian at freeswitch.com

Mobile: 918-424-9378

Website: https://www.FreeSWITCH.com <https://www.freeswitch.com/>

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