[c-nsp] Unwanted SIP rewriting on a C850

[Tim Jackson]

no ip nat service sip udp port 5060

http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide09186a0080087d43.htm

SBCs don't like it when it sees stuff behind NAT that gets re-written.

--
Tim


On 10/22/07, Rhett Bassett <rhett at coreds.net> wrote:
>
> List-
>
> I've got a C850 running 12.3(8r)YI4 that's got a taste for SIP messages.
>
> At no point in my config have I given the slightest "ip inspect" or
> "appfw", yet it would appear to be rewriting (viewed from tcpdump) SIP
> REGISTER messages, which is counter-productive from my SIP provider's
> point of view - they say they're seeing the same thing.
>
> I'm really not looking forward to ACL hell, if that's what this is
> leading towards...  Hopefully there is just an overlooked 'no router eat
> sip' command I've missed.
>
> Any leads?
>
> --
> Rhett Bassett
> Research and Development
> Hunter Communications
>
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