[c-nsp] IOS 12.4 and NAT

John Neiberger jneiberger at gmail.com
Tue May 3 22:13:42 EDT 2005


I don't think x.x.1 releases mix well with anything. If I were running
an x.x.1 release, I wouldn't expect anything at all to work correctly.
Or, let me rephrase...I wouldn't assume that anything works correctly,
even the simple stuff.

I didn't even know 12.4(1) was out yet. I'd be willing to bet that
within a few weeks the list of known bugs will be dozens of pages
long.

John

On 5/3/05, Church, Chuck <cchurch at netcogov.com> wrote:
> That's weird.  I remember when 12.3.1 first came out, I tried running it
> on a 2600 with a super simple config on it, doing NAT and overloading,
> and as soon as you enabled NAT on the inside interface, it'd crash hard.
> It seems that x.x.1 releases and NAT don't mix well...  Give it a month.
> 
> Chuck Church
> Lead Design Engineer
> CCIE #8776, MCNE, MCSE
> Netco Government Services - Design & Implementation Team
> 1210 N. Parker Rd.
> Greenville, SC 29609
> Home office: 864-335-9473
> Cell: 703-819-3495
> cchurch at netcogov.com
> PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D
> 
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Brian Vowell
> Sent: Tuesday, May 03, 2005 7:35 PM
> To: Denny Reiter
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] IOS 12.4 and NAT
> 
> I could not get NAT to allow any translations without the enable
> command.  I've been having all sorts of problems with 12.4(1) all day,
> so I downgraded to 12.3(14)T1, and the command shows up there too.
> 
> What hardware are you running 12.4(1.2) on?
> 
> --b
> 
> Denny Reiter wrote:
> 
> >On Tue, May 03, 2005 at 11:45:21AM -0700, Brian Vowell wrote:
> >
> >
> >>Just an FYI for anyone who'll be doing NAT with 12.4:
> >>
> >>In addition to configuring an interface as either inside or outside,
> you
> >>also now have to enter the interface command "ip nat enable" on an
> >>interface that you would like to setup NAT.  I'm not sure why that's
> not
> >>the default, but hopefully this email will prevent others from having
> to
> >>spend an hour or more going over their NAT configs and wondering why
> it
> >>doesn't work.
> >>
> >>
> >
> >I'm running 12.4(1.2) and NAT, and didn't need to enter 'ip nat
> enable'.
> >
> >Denny
> >
> >
> >
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