[Serusers] NAT Problem with PAP2

[SIP]

Have you enabled STUN support on the PAP2?

N.


Nhadie wrote:
> Hi All,
>
>
> I'm testing the default of config of ser, and just adding some nathelper 
> command to make it 2 UA's work, I have an x-lite and a PAP2 both are 
> behind nat.
>
> X-lite is being detected by ser as behind NAT, but the PAP2 isn't, the 
> ser thinks the PAP2 is registering with public IP.
>
> When I call from PAP2 to X-lite, i have no problem, because the c= IN on 
> the SIP/200 OK reply is already public IP, so wehen PAP2 sends an ACK or 
> BYE it sends it the c=IN of X-lite which is public IP.
>
> But when I call vice versa, that PAP send c=IN as private IP so when 
> X-lite sends an ACK/BYE, it wil send it to the private IP. which 
> obviously will not be able to be recieved by PAP2.
>
> How can I fix this? Another thing i don't get is that why PAP2 registers 
> as not behind NAT, but when it replies to messages, it is sending the 
> private IP on the c= IN.
>
> Anyone experienced this before?
>
> TIA
>
> Regards,
> Nhadie
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