[Asterisk-Users] SIP x NAT

[Michael Giagnocavo]

OK Great, well as soon as the ISPs in Guatemala rip out their existing
"SuperCheap" equipment and put in Junipers, we'll be set.

Meanwhile, SIP isn't near as close to "Plug-n-Play" as IAX2. 

Also, I don't think that having to buy special hardware/software just
because a protocol doesn’t work well is a good thing. Saying "SIP and NAT
work fine if ..." defeats the purposes. I don't want any ifs, buts, or
excepts. I'm going to have enough support dealing with people calling when
the Internet connection to their house goes out, or when a pet eats their
cable. I really don't want to be fielding calls when their network shifts
and SIP suddenly stops working.

-Michael

-----Original Message-----
From: Charles S. Antrim [mailto:chuck at antrim.org] 
Sent: Monday, January 31, 2005 11:57 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion; Michael
Giagnocavo
Subject: RE: [Asterisk-Users] SIP x NAT

The Juniper Networks security product line, Netscreen, has very robust SIP 
support with firewall and VPN.

Chuck

-----Original Message-----
From: "Michael Giagnocavo" <mgg-digium at atrevido.net>
To: "'Asterisk Users Mailing List - Non-Commercial Discussion'" 
<asterisk-users at lists.digium.com>
Date: Mon, 31 Jan 2005 09:50:31 -0600
Subject: RE: [Asterisk-Users] SIP x NAT

> I'll agree with that sentence. There are many times when even STUN and
> so on
> isn't going to help. In Guatemala, a lot of people end up with private
> IPs,
> behind two NATs, etc. I've seen them aggressively timeout connections,
> limit
> the range of ports available for NAT (to a ridiculously low number),
> etc.
> etc. We gave up on SIP and are now using IAX for our customer phones.
> 
> -Michael
> 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of César
> Davi
> Ávila do Nascimento
> Sent: Monday, January 31, 2005 5:56 AM
> To: Asterisk-Users at lists.digium.com
> Subject: [Asterisk-Users] SIP x NAT
> 
> Hi All,
> 
> I have a question for you:
> 
> - "SIP doesn't work behind NAT very well"
> 
> Do you agree with this sentence?
> 
> regards
> 
> César
> 
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