Re: RE: Re: A matter of a regular Expression

This is based on IOS quirks, which I think is IOS dependant.
They changed REGEXP mechanism so much, that they screwed it up.
look:

R1#sh ip bgp
BGP table version is 3, local router ID is 10.0.0.2
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network Next Hop Metric LocPrf Weight Path
*> 100.0.0.0/32 10.0.0.1 0 0 100 i
*> 100.1.1.1/32 0.0.0.0 0 32768 i

R1#sh ip bgp regexp ^100_______$$$$$$____$$$
BGP table version is 3, local router ID is 10.0.0.2
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network Next Hop Metric LocPrf Weight Path
*> 100.0.0.0/32 10.0.0.1 0 0 100 i
R1#

Tell me, please, how can my second expression be possibly correct?
It can't. It's a matter of overoptimized interpretation engine...

On Mon, Apr 13, 2009 at 7:03 PM, <aly.groupstudy_at_gmail.com> wrote:

> Ryan,
>
> I am not sure I understand what your hypothetical scenario asks for
> But why don't you try something like this to allow and any of the
> customer's
> customer's routers
> 3rd lv AS
>
> Rack1R4#sh ip bgp regexp ^54_[0-9]*_[0-9]*$
> BGP table version is 11, local router ID is 150.1.4.4
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal,
> r RIB-failure, S Stale
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 28.119.16.0/24 204.12.1.254 0 0 54 i
> *> 28.119.17.0/24 204.12.1.254 0 0 54 i
> *> 112.0.0.0 204.12.1.254 0 54 50 60 i
> *> 113.0.0.0 204.12.1.254 0 54 50 60 i
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>

-- 
Pavel Bykov
----------------
Don't forget to help stopping the braindumps, use of which reduces value of
your certifications. Sign the petition at http://www.stopbraindumps.com/
Blogs and organic groups at http://www.ccie.net