[c-nsp] iChat AV and Cisco CBAC/NAT

[Rodney Dunn]

On Fri, Mar 16, 2007 at 11:15:40AM -0500, Church, Charles wrote:
> >-----Original Message-----
> >From: Rodney Dunn [mailto:rodunn at cisco.com] 
> >Sent: Thursday, March 15, 2007 4:58 PM
> >To: Church, Charles
> 
> >> The thing that bothered me was that the default according to the docs
> 
> >> was that NAT payload correction (for lack of a better term) wasn't 
> >> supposed to be enabled by default.
> 
> >It is.
> 
> Rodney,
> 
> 	Can you see if the wording of this:
> http://www.cisco.com/en/US/products/ps6350/products_command_reference_ch
> apter09186a00804461e8.html#wp1178856
> 
> is correct?  Where is says:
> 
> "Defaults
> 
> Disabled
> RTSP is enabled
> Command Modes ..."
> 
> Leads me to believe that NAT payload translation is off by default, but
> it was definitely on for a few 12.4(10 through 12) Advanced Ip Services
> feature sets I used on 2650XM.  Both of these commands show up in my
> running config:
> 
> no ip nat service sip tcp port 5060
> no ip nat service sip udp port 5060
> 
> So it does seem like fixup is enabled by default for SIP.

If those show up when you configure them it is on by default.

> 
> Thanks,
> 
> Chuck