Les was correct. 'permit 0.0.0.0/0' exactly matches the prefix 0.0.0.0/0, the default route.
'deny 0.0.0.0/0 le 32' matches any prefix with a prefix length of 0 up to "less than or equal to 32 bits." This is the way you express "any" in a prefix-list. This prefix list will permit the default route, and then deny all other routes. Hope this helps, Bob Sent from my iPad On Apr 3, 2012, at 6:46 PM, "[email protected]" <[email protected]> wrote: > Hello > I think both are the same , they matches all routes > > Regards > Moataz > -----Original Message----- > From: Les Waller <[email protected]> > Sender: [email protected] > Date: Tue, 3 Apr 2012 23:12:25 > To: [email protected]<[email protected]> > Subject: Re: [OSL | CCIE_RS] Prefix-list doubt > > If I understand this correctly, 10 permits a default route and 999 denies > everything else. You could also use the implicit deny to do the latter. > > Let's see what others have to say. I am still early on my road to CCIE, so > I would feel better hearing the masters speak. :-) > > Les > > On Tue, Apr 3, 2012 at 9:09 PM, JM NGOK <[email protected]> wrote: > >> Hi all, >> >> Please excuse my foolishness but I want to understand which subnets are >> allowed under this prefix-list: >> >> >> ip prefix-list ROUTES description INBOUND-ROUTES >> ip prefix-list ROUTES seq 10 permit 0.0.0.0/0 >> ip prefix-list ROUTES seq 999 deny 0.0.0.0/0 le 32 >> >> Again excuse me if this is not a CCIE level question. I just have some >> doubts. >> >> Thanks >> >> Jean-Marie NGOK >> Senior Network Engineer >> 347 - 559 - 1172 >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> >> http://onlinestudylist.com/mailman/listinfo/ccie_rs >> > > > > -- > Les Waller, Network Engineer > > Home Page: www.leswaller.com > > MBA, CISSP, CCNP > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
