From: ccie2be (ccie2be@nyc.rr.com)
Date: Thu Dec 02 2004 - 16:20:34 GMT-3
Thanks again,
but I forgot to ask:
What happens when it fails? Will NAT siliently discard the packet, will a
console message appear, or something else altogether?
In other words, how would I know when or if this situation occurred?
Thanks, Tim
----- Original Message -----
From: "Larry Roberts" <groupstudy@american-hero.com>
To: "Phil" <theccie@gmail.com>
Cc: "ccie2be" <ccie2be@nyc.rr.com>; "Group Study" <ccielab@groupstudy.com>
Sent: Thursday, December 02, 2004 1:59 PM
Subject: Re: Dynamic NAT
> without the "overload" keyword, the 29th NAT translation will fail.
>
> with "overload" PAT kicks in.
>
> Larry
>
>
> Phil wrote:
> > That is a good question. Without trying in the lab I would say that if
> > your nat command is:
> >
> > ip nat inside source list 1 pool SMALL overload
> >
> > It will use PAT on the NATed source addresses, but every source will
> > be 204.1.1.3 with different port numbers. Without the "overload"
> > keyword my guess is that it will not work after the last address in
> > the pool is used.
> >
> > Phil
> >
> > On Thu, 2 Dec 2004 13:34:59 -0500, ccie2be <ccie2be@nyc.rr.com> wrote:
> >
> >>Hi guys,
> >>
> >>I've seen several examples where the pool of addresses (Inside Global)
is
> >>smaller than the number of Inside Local that might potentially need to
be
> >>translated.
> >>
> >>For example, let's say the inside local address is 10.0.1.0/24 which is
254
> >>potential addresses to be translated.
> >>
> >>Also, assume the pool of Inside Global address is define like this:
> >>
> >>ip nat pool SMALL 204.1.1.3 204.1.1.31 netmask 255.255.255.0
> >>
> >>which is a total of 28 addresses.
> >>
> >>What happens when the 29th Inside Local address needs to be tranlated?
> >>
> >>Does it just not work or does NAT "know" to now use extended translation
> >>tables?
> >>
> >>TIA, Tim
> >>
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