[afnog] DHCP configuration on cisco router 2600 series

[Antonio Godinho]

The problem is that the auto-summary aggregates routes based on class A, B 
and C which nowadays is not a very good idea for obvious reasons. If you 
have just a 66.32.34.0/24 network it will go out as 66.0.0.0/8 aggregation 
with the auto-summary, that is my understanding.

Cheers,



On Fri, 9 Sep 2005 15:45:53 +0200, Mark Tinka wrote
> On Friday 09 September 2005 15:21, Antonio Godinho wrote:
> 
> > > There's also a BGP command (which I can't remember)
> > > without which your router will split your route
> > > announcements into separate classful /24's
> >
> >  Correction:
> >
> > It's "no auto-summary"
> 
> Hmmh, really?
> 
> My understanding of 'no auto-summary' is that using it 
> (it's enabled by default on IOS) provides route 
> summarization, advertising a (single) route that 
> represents multiple routes - in short, route 
> aggregation.
> 
> This would describe the exact opposite of what the 
> command Brian C. mentions is meant to do.
> 
> As I know, for instance, when summarization is left 
> enabled in BGP, routes redistributed from an IGP into 
> BGP (bad idea) will have only their classful portions 
> accepted.
> 
> Mark.
> 
> >
> > > B.
> > >
> > > _______________________________________________
> > > afnog mailing list
> >
> > --
> > Antonio Godinho
> > B.Sc.,MCP, MCSE, CCNA, CCNP
> > Maputo
> > Mozambique
> >
> >
> > _______________________________________________
> > afnog mailing list


--
Antonio Godinho
B.Sc.,MCP, MCSE, CCNA, CCNP
Maputo
Mozambique