[Asterisk-Security] abt NAT issues and TCP support to Asterisk

[Shidan]

Well Kevin is right that media issues with nat are the main problem,
but nat related registration issue problems would disappear for one
thing. I can tell you that alot of calls from African countries are
resolved by using TCP SIP implementations, but then again maybe there
are other aspects of the SIP stacks we use in those implementations
that help (Vovida).

Also, as to your first post I think better congestion control and
faster retransmission rates are another benefit of using TCP over UDP.

Anyways as Kevin alluded to this thread belongs in the users list.

-----
Shidan

On 7/17/06, Kevin P. Fleming <kpfleming at digium.com> wrote:
> ----- vivek relan <vivek_pict at yahoo.com> wrote:
> > By adding the TCP support to Asterisk server, how can reslove the NAT
> > issues ?? Why we could not reslove them with UDP ?
>
> How is this security related? This is the asterisk-security mailing list.
>
> In any case, your question shows a lack of understanding of what the 'NAT issues' are :-) Generally speaking, NAT issues in Asterisk are related to media sessions for SIP calls, for which TCP support is irrelevant, since it is not used for media sessions.
>
> --
> Kevin P. Fleming
> Senior Software Engineer
> Digium, Inc.
>
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