Stefan Gofferje <[EMAIL PROTECTED]> writes:

> Interesting. I have my Asterisk with RFC-1918 IPs behid a NATting PIX
> and the FIXUP SIP of the PIX makes it very easy for me to use my * as
> server for external clients as well as as client for SIP providers.

A lot of phones come preconfigured for STUN or ICE, and it is tempting
to set Asterisk up with nat=yes. If the firewall is SIP-aware and the
SIP-device is NAT-aware, things usually break.

Now ask all your customers to figure out whether their
firewalls/NAT-routers do SIP-fixup, and tell them to set STUN/ICE
accordingly. Most of them will have absolutely no idea what you are
talking about.

Did I mention that I hate NAT?


/Benny


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