[Serusers] ser to asterisk

[Jan Janak]

On 11-05 08:48, Tjapko Smits wrote:
> Thanks Alan,
> 
> Ser to asterisk works now. It was quit easy indeed. 
> 
> According to your subtle remark NAT penetration is not so easy? 
> 
> I saw this in the cookbook that made me think: 
> 
> # prevents private ip space from being used
>   if (search("^(Contact|m): .*@(192\.168\.|10\.|172\.16)")) {
>     if (method=="REGISTER") {
>       log(1, "LOG: Someone trying to register from private IP\n");
>       sl_send_reply("479", "Please don't use private IP addresses" );
>       break;
>     };
>   }
> 
> If you can filter a nated endpoint like this than i should be able to
> also activate a proxy mechanism that penetrates the nated environment
> like nathelper or something. Is that a correct suggestion assuming that
> we are not discussing firewalls or other port blocking mechanisms.

  Yes, but it might be better to use nat_uac_test which checks if the IP
  the request is coming from is different from the IP in Via header
  field.

    Jan.