[Freeswitch-users] Natting question.

[Mimiko]

On 10.12.2012 22:00, Sean Devoy wrote:
> Hi Mimiko,
>
> I have had hours and hours of problems with NAT, so I can at least tell you
> what helped me get past them.
>
> All of my problems have been in the configuration     PHONE > NAT > Internet
>> FS  .

I've gived up using NAT on FS server. So I put server on public IP, 
because if FS is after a firewall then there is too much complexity like 
different cases how a phone can connect:

For example, FS firewall is on public ip: IP-PUB1
A phone is registering with this IP-PUB1, but the client can be in 
different location:

1) client -> local-net -> FS firewall -> NAT -> FS firewall -> local-net 
-> local-ip of FS. Ie, client and FS is on same network, but client uses 
FS public natted IP-PUB1.
2) client -> other-local-nat (wifi) -> router -> local-net -> FS 
firewall -> NAT -> FS firewall -> local-net -> local-ip of FS. Ie client 
is behind router located in same network as FS and is connecting to FS 
IP-PUB1. Triple nat.
3) client -> internet -> FS firewall -> local-net -> local-ip of FS.
4) client -> router -> internet -> FS firewall -> local-net -> local-ip 
of FS.
5) client -> VPN -> local-net -> FS firewall -> NAT -> FS firewall -> 
local-net -> local-ip of FS.

If in all cases except 3 and 5 is using local-ip of FS, then its ok. But 
to handle or 5 cases with public IP is troublesome.

-- 
Mimiko desu.