Re: [Siproxd-users] Remote NAT Traversal

[Alejandro O. <ao...@te...>]

Some companis, like Jasomi, implement
NAT Relay Agents. They work like SIP Proxies but
make sure all signaling and RTP goes through then
allowing enpoints behing NAT router to initiate
or terminate calls withouth using any other NAT
traversal mechanism (STUN, uPNP or an ALG).

J.Rosenberg wrote a draft for a protocol called
TURN (Traversal Using Relay NAT -
draft-rosenberg-midcon-turn). The NAT Relay
agent is very similiar to that but is transparent
to end enpoint (endpoints don't need to explicitly
allocate ports at the TURN server).

The advantage of such a solution is that you don't
need a siproxd running on each of the network edges.

Alejandro

> Hello Alejandro
>
> I'm not aware of a technique called 'remote NAT traversal'. Could you
> describe more in detail what exactly you do mean by that?
> What is the situation you have and what would you like to do?
>
> The main purpose of Siproxd is to enable SIP user agents that are
> 'hidden' behind a masquerading firewall (e.g. in a private IP range) to
> call and be called to/from the internet.
>
> /Thomas
> Maintainer of Siproxd
>
>
> On 13 Mar, Alejandro Olchik wrote:
>>
>> I was trying to figure out if the siproxd can be
>> used as a solution for remote NAT traversal.
>>
>> Thanks,
>> Alejandro Olchik
>>
>>
>
> --
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