From: Dr. Seuss (greeneggsandham4@hotmail.com)
Date: Wed Jan 14 2009 - 23:18:44 ARST
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>
>> >> > _________________________________________________________________> >
Windows> > Live : Keep your life in sync.> >> >
http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t1_allup_explore_012009> >>>
>>> > Blogs and organic groups at http://www.ccie.net> >> >> >
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