From: Bob Sinclair (bsin@xxxxxxxxx)
Date: Sun Mar 03 2002 - 23:06:04 GMT-3
Manny,
>From what I have seen playing with it, you will only get a default route sent
if the L1/L2 knows about at least two areas. Tried redistributing another prot
ocol into a L1/L2 to turn it into an "ASBR", but still no default sent. Other
than redistributing a default, seems to need at least two areas.
-Bob
----- Original Message -----
From: "Manny Gonzalez" <gonzalu@nyp.org>
To: "Nick Shah" <nshah@connect.com.au>
Cc: "Manny Gonzalez" <gonzalu@nyp.org>; "CCIELab at GroupStudy.com" <ccielab@gr
oupstudy.com>
Sent: Sunday, March 03, 2002 8:37 PM
Subject: Re: ISIS and Default Route
> Been there, done that!
>
> :-)
>
> Nick Shah wrote:
> >
> > If you can explicitly set the peer as a L1, it should get a default route.
> > .. try circuit-type on the interface connecting to the peer...
> >
> > hth
> > Nick
> > ----- Original Message -----
> > From: "Manny Gonzalez" <gonzalu@nyp.org>
> > To: "CCIELab at GroupStudy.com" <ccielab@groupstudy.com>
> > Sent: Monday, March 04, 2002 9:02 AM
> > Subject: ISIS and Default Route
> >
> > > In IOS 12.2(4)T, Cisco has added the command
> > >
> > > set-attached-bit
> > >
> > > This lets one control the setting of the ATT bit regardless of lavel1/2
> > > connectivity on an L1 router.
> > >
> > > My question is this:
> > >
> > > If I have an L1 router connected to an L1L2 router all in the same area,
> > > I do not get a default route. If I use the DEFAULT-INFORMATION-ORIGINATE
> > > command with a route map, i can force a default to be injected into the
> > > L1 router.
> > >
> > > If I have multiple areas connected via L1L2 routers, all L1 routers in
> > > the repective areas get a default route automatically. I believe this
> > > happens because the L1 router sees more than one L1L2 router and it will
> > > set the ATT bit to the closest attached L1L2 router and then puts in a
> > > default route to this L1L2 device.
> > >
> > > Is there a way to get a default into an L1 router when there is only one
> > > area and only L1L2 router in the area WITHOUT default information
> > > originate? IOS 12.1 only please. I know in 12.2 I can get the ATT bit
> > > set the hard way.
> > >
> > > Thanks in advance.
> > >
> > > Manny Gonzalez
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