From: Rich Collins (nilsi2002@gmail.com)
Date: Fri Jan 16 2009 - 13:41:49 ARST
Yes that seems to work as well.
On Wed, Jan 14, 2009 at 8:18 PM, Dr. Seuss <greeneggsandham4@hotmail.com> wrote:
> How about this instead:
>
> router isis
> redistribute bgp 20 level-1
>
> Does the same thing, right?
>
> BJW> Date: Wed, 14 Jan 2009 19:02:32 -0500> From: nilsi2002@gmail.com> To:
> greeneggsandham4@hotmail.com> Subject: Re: ISIS default routes> CC:
> ccielab@groupstudy.com> > I got a similar result. That summary address of
> 0.0.0.0 just drowned> out all the other individual routes.> > If you don't
> want the default route you should see the individual> routes if you remove
> that summary address and add a route-map to the> redistribute bgp 20> > i.e.>
> route-map LEVEL1> set level level-1> > > > > On Wed, Jan 14, 2009 at 6:50 PM,
> Dr. Seuss <greeneggsandham4@hotmail.com> wrote:> > Well here's what I ended up
> doing:> >> > router isis> > redistribute bgp 20> > summary-address 0.0.0.0
> 0.0.0.0 level-1 metric 13 *just some weird-looking> > number to make it stand
> out> >> > I was sort of surprised by the results. The level-1 routers in the
> area> > received only a default route, and when I looked in R6's ISIS
> database, none> > of the individual BGP routes appeared - just the static
> route.> >> > Here's the ISIS database on R6 when I just redistributed BGP and
> did nothing> > else:> >> > sho isis database detail> > [snip]> > Router6.00-00
> * 0x00000018 0xCBCB 1182 0/0/0 Area> > Address: 49.0002 NLPID: 0x81 0xCC
> Hostname: Router6 IP Address:> > 6.6.6.6 Metric: 10 IP 35.1.0.0 255.255.255.0
> Metric: 10 IP> > 6.6.6.6 255.255.255.255 Metric: 10 IS RouterBB3.02 Metric: 0>
>> ES Router6 Metric: 33 IP-External 1.1.1.1 255.255.255.255 Metric: 33> >
> IP-External 2.2.2.2 255.255.255.255 Metric: 33 IP-External 5.5.5.5> >
> 255.255.255.255 Metric: 33 IP-External 11.0.0.0 255.0.0.0 Metric: 33> >
> IP-External 46.1.0.0 255.255.255.0 Metric: 33 IP-External 49.1.0.0> >
> 255.255.255.0> > [snip]> >> > Now here's the R6 ISIS database when I'm
> redistributing BGP *and* using the> > summary address:> >> > sho isis database
> detail> >> > Router6.00-00 * 0x00000017 0xA2FF 1015 0/0/0 Area> > Address:
> 49.0002 NLPID: 0x81 0xCC Hostname: Router6 IP Address:> > 6.6.6.6 Metric: 10
> IP 35.1.0.0 255.255.255.0 Metric: 10 IP> > 6.6.6.6 255.255.255.255 Metric: 10
> IS RouterBB3.02 Metric: 0> > ES Router6 Metric: 13 IP-External 0.0.0.0
> 0.0.0.0> >> > So, pretty cool - it doesn't choke the ISIS database with all
> the BGP routes,> > and informs the router that it's fulfilling the role of an
> ASBR, so to speak.> >> > Friday will be my *third* attempt at the
> BSCI...failed it by a hair last time.> > ISIS was one of my weak spots (28%!),
> so hopefully I can tame this beast now.> >> > Thanks,> >> > BJW> Date: Wed, 14
> Jan 2009 15:27:43 -0500> From: nilsi2002@gmail.com> To:> >
> greeneggsandham4@hotmail.com> Subject: Re: ISIS default routes> CC:> >
> ccielab@groupstudy.com> > I'm not sure if this is the most elegant method but>
>> it seems to work.> > Take your step 2)> > On your Router6> > router isis>
> net> > xx.xxxx> summary-address 0.0.0.0 0.0.0.0 level-1> redistribute static
> ip> > metric 50 level-1> > > -Rich> > > > On Wed, Jan 14, 2009 at 9:01 AM, Dr.
> Seuss> > <greeneggsandham4@hotmail.com> wrote:> > I've been playing around
> with default> > routes in ISIS the last couple of days,> > and I've searched
> through the> > archives for more info. My topology is simple:> > Router6 is a
> L1/L2 router> > with an ethernet connection to Router8, and a> > frame-relay
> connection to> > Router2. R6 and R2 speak BGP with each other, and> > R6
> speaks ISIS with R8.> > I'm trying to get R6 to feed a default route to R8> >
> (redistributing BGP into> > ISIS is a bad idea), and here's what I've
> discovered> > so far:> >> > 1) R6> > does *not* automatically set the ATT bit
> in its LSP updates to R8,> > despite> > R6 being L1/L2 and R8 being L1.> >> >
> 2) Configuring a static route to null0> > on the L1/L2 router and
> redistributing> > static does not work. L1 routers> > (R8) do not receive a
> default route.> >> > 3) Configuring a static route to> > null0 on the L1/L2
> router and using> > "default-information originate" does> > not work. L1
> routers do not receive a> > default route.> >> > 4) Configuring> > ISIS
> between R6 and R2 *does* impel R6 to send a default route> > to R8. This> > is
> the *only* configuration so far which gets a default route> > into R8's> >
> routing table.> >> > For the record, R8 is running 12.1(3r)T2, and R6 is> >
> running Version 12.2(8r).> > My question is this: what is the ISIS equivalent>
>> of an ASBR? It doesn't seem> > to want to feed a default route to anyone
> else> > unless it's attached to another> > *ISIS* area!> >> > Thanks,> > BJW>
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