27 Aug
2005
27 Aug
'05
12:02 p.m.
Also, many NATs can handle hairpin media quite well. I think there is an RFC
with a list of tested NATs. Another suggested solution is to test caller's
and callee's public IPs and not force proxy if they match (you need to know
that the internal NAT is routable and non-NATed for this to work).
g-)
----- Original Message -----
From: "Klaus Darilion" <klaus.mailinglists(a)pernau.at>
To: "Carlo" <c.maggiolini(a)elitel.it>
Cc: "Jiri Kuthan" <jiri(a)iptel.org>rg>; <serusers(a)lists.iptel.org>
Sent: Friday, August 26, 2005 07:14 PM
Subject: Re: [Serusers] Hairpin solutions?
Carlo wrote:
maybe you are right but I can see that FWD is
using Jasomi SBC to solve
nat problems.
There are also other SIP provider than FWD ;-)
klaus
http://lite.fwdnet.net/index.php?section_id=78
Carlo
Jiri Kuthan ha scritto:
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beg my pardon, but I don't really think that
one needs a session border
control, particularly becasue of the reasons related to bad scalability,
bandwidth waste and latency. Sinle point
of failure is another concern.
-jiri
At 02:20 PM 8/26/2005, Carlo wrote:
------------------------------------------------------------------------
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http://lists.iptel.org/mailman/listinfo/serusers What you need is a session border control.
Try this link from Jasomi : http://www.jasomi.com/ppfes.html
or this from Kagoor ( now Juniper )
http://www.juniper.net/customers/support/products/vf1000.jsp
Federico Giannici ha scritto:
>Considering that we DON'T want to use an RTP Proxy (bad scalability,
>waste of bandwidth and longer delays), is there any solution to the
>"hairpin" problems?
>
>Are there any "boxes" that look at the SIP messages and short-circuit
>calls from and to the local network?
>
>
>Thanks.
>
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--
Jiri Kuthan http://iptel.org/~jiri/