Chuck,
It'll take the command but it doesn't disable summarization if you're only
using RIPv1.
>From CCO:
RIP Version 1 always uses automatic summarization. If you are using RIP
Version 2, you can turn off automatic summarization by specifying no
auto-summary. Disable automatic summarization if you must perform routing
between disconnected subnets. When automatic summarization is off, subnets
are advertised.
Brian
> -----Original Message-----
> From: Chuck Larrieu [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, May 06, 2001 10:43 PM
> To: Brian Dennis; [EMAIL PROTECTED]
> Subject: RE: RIPv2 vs. RIP [7:3404]
>
>
> Hhhmmmmm......
>
> RIPv1 offers the command [no] auto-summary as well. Haven't
> tried this one
> out, but I will hazard a guess that it would be useful in situations where
> one is subnetting a classful address, and did want the
> advertisements to go
> out at the classful boundary. For example, if connected to another RIPv1
> router which was using a different classful network, but
> subnetted the same
> way.
>
> i.e. E0 = 192.168.1.1/28, S0 = 192.168.1.17/28 and S1 =
> 192.168.1.33/26 the
> no auto command would prevent the advertisements from becoming
> 192.168.1.0/24
>
> don't have access to routers at the moment, but I am open to correction.
> I'll maybe take a look tomorrow. I do recall a phenomenon like this when
> working on an IGRP lab one time. I'll have to dig out my notes.
>
> Chuck
>
>
> -----Original Message-----
> From: Brian Dennis [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, May 06, 2001 9:46 PM
> To: Chuck Larrieu; [EMAIL PROTECTED]
> Subject: RE: RIPv2 vs. RIP [7:3404]
>
>
> RIPv2 also supports discontinuous networks (no auto-summary) and
> the ability
> to do summarization (ip summary-address rip).
>
> Brian
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> > Chuck Larrieu
> > Sent: Sunday, May 06, 2001 9:05 PM
> > To: [EMAIL PROTECTED]
> > Subject: RE: RIPv2 vs. RIP [7:3404]
> >
> >
> > VLSM is the major one. RIPv2 also supports authentication. It's been a
> > while, and I forget the other ones. Well, a quick browse of RFC 2453
> > indicates in general - that's it. RIPv2 uses the multicast address of
> > 224.0.0.9, rather than the broadcast address of 255.255.255.255
> >
> > A RIPv2 router will respond to RIPv1 routers in the RIPv1 format.
> >
> > The max net diameter of 15 remains in effect for RIPv2
> >
> > As long as you are careful with your addressing, in general you
> > should have
> > few problems.
> >
> > But you will need to study your existing network plan, and work
> > accordingly.
> >
> > HTH
> >
> > Chuck
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of
> Thomas
> Sent: Sunday, May 06, 2001 8:27 PM
> To: [EMAIL PROTECTED]
> Subject: RIPv2 vs. RIP [7:3404]
>
> Hi All - What's the main feature of RIPv2 over RIPv1, beside the
> VLSM? I am
> trying to migrate to RIPv2, but some devices only support RIPv1. Is there
> any workaround to have RIPv2 and RIP compatable? Thanks all in advance!
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