From: A Paradela (aparadela@earthlink.net)
Date: Wed Sep 24 2003 - 22:13:11 GMT-3
It works now, but other than removing any CLNS routing commands I'm not sure
why. I did not have to change r2 to L2 at the routing process. Also when I
cleared the isis configs and pasted them back, the "never-set-attached-bit"
(sounds like ATT to me..) cmd that appeared on the config went away, not
sure why it was there to begin with.
q: Why do we need to map CLNS under frame-relay? Is it using CLNS instead
of IP at L3?
When is there a need to run CLNS routing?
Thanks for your help, AP
!r6 (removed CLNS routing cmds)
interface Ethernet0
ip address 133.9.50.5 255.255.255.0
ip router isis
isis circuit-type level-1
router isis
net 65.1111.6666.6666.6666.00
passive-interface Loopback0
is-type level-1
!r5 (removed CLNS routing cmds)
interface Ethernet0
ip address 133.9.50.1 255.255.255.0
ip router isis
isis circuit-type level-1
interface Serial1
ip address 133.9.101.2 255.255.255.0
ip router isis
encapsulation frame-relay
frame-relay map clns 502 broadcast
frame-relay map ip 133.9.101.1 502 broadcast
frame-relay map ip 133.9.101.2 502
frame-relay map ip 133.9.101.5 502 broadcast
no frame-relay inverse-arp
isis circuit-type level-2-only
router isis
net 65.1111.5555.5555.5555.00
passive-interface Loopback0
default-information originate
!r2 (removed CLNS routing cmds)
interface Serial1.256 multipoint
ip address 133.9.101.1 255.255.255.0
ip router isis
frame-relay map clns 205 broadcast
frame-relay map ip 133.9.101.1 205
frame-relay map ip 133.9.101.2 205 broadcast
frame-relay map ip 133.9.101.5 206 broadcast
isis circuit-type level-2-only
router isis
net 02.1111.2222.2222.2222.00
passive-interface Loopback0
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Joe Chang
Sent: Wednesday, September 24, 2003 9:24 PM
To: ccielab@groupstudy.com
Subject: Re: ISIS: default route to L1 routers
Doesn't an L1 router install a default route pointing to the nearest L1-L2
router? Perhaps if "is type level-1" was removed from R6's router-level
config.
----- Original Message -----
From: "William Lijewski" <ccie8642@hotmail.com>
To: <aparadela@earthlink.net>; <ccielab@groupstudy.com>
Sent: Wednesday, September 24, 2003 2:40 PM
Subject: Re: ISIS: default route to L1 routers
> For the default route to show up on R6 there is no need for the default
> information originate command. You need to make R2 strictly level 2 by
> changing its level under the router process instead of the interface.
Once
> you do that the default route should be injected automatically into R6.
>
> Also the CLNS routing is not needed, you are doing IP routing, not CLNS
> routing. It doesn't need to be turned on in global config, or be under
any
> of the interfaces.
>
> Bill Lijewski
> CCIE #8642
> Network Learning Inc
> 5 Day R&S CCIE Bootcamp Instructor
>
>
>
> >From: A Paradela <aparadela@earthlink.net>
> >Reply-To: A Paradela <aparadela@earthlink.net>
> >To: ccielab@groupstudy.com
> >Subject: ISIS: default route to L1 routers
> >Date: Wed, 24 Sep 2003 17:17:49 -0400 (GMT-04:00)
> >
> >Not able to make this work. Any thoughts / hints appreciated.
> >
> >R2 -- (L2) -- R5 -- (L1) -- R6
> >
> >R2 advertising 133.9.2.0/24 and 133.8.0.0/16 (summary)
> >R5 advertising 133.9.5.0/24
> >R6 advertising 133.9.6.0/24
> >
> >Should R6's routing table should have a 0.0.0.0/0 route to R5? It does
> >not.
> >CLNS routing enabled on all interfaces, all adjacencies are up.
> >R2 and R5 sharing all routes just fine.
> >From "sh isis database" R2's L1 ATT bit to self is set, no other ATT bits
> >are set (would expect one on R5)
> >
> >R6 only sees an L1 route from R5 (loopback0)
> >
> >Also tried default-information-originate on R5 (is it necessary??) but
only
> >R2 sees it, not R6.
> >How can the 0.0.0.0/0 route be made to only advertise to L1 peers?
> >
> >Running 12.2.16b.
> >
> >Thanks, AP
> >
> >!R6
> >clns routing
> >interface Ethernet0
> > ip address 133.9.50.5 255.255.255.0
> > ip router isis
> > clns router isis
> > isis circuit-type level-1
> >router isis
> > net 65.1111.6666.6666.6666.00
> > passive-interface Loopback0
> > is-type level-1
> >
> > 133.9.0.0/24 is subnetted, 4 subnets
> >i L1 133.9.5.0 [115/10] via 133.9.50.1, Ethernet0
> >
> >!R5
> >clns routing
> >interface Ethernet0
> > ip address 133.9.50.1 255.255.255.0
> > ip router isis
> > clns router isis
> > isis circuit-type level-1
> >interface Serial1
> > ip address 133.9.101.2 255.255.255.0
> > ip router isis
> > encapsulation frame-relay
> > no fair-queue
> > frame-relay map clns 502 broadcast
> > frame-relay map ip 133.9.101.1 502 broadcast
> > frame-relay map ip 133.9.101.2 502
> > frame-relay map ip 133.9.101.5 502 broadcast
> > no frame-relay inverse-arp
> > clns router isis
> > isis circuit-type level-2-only
> >router isis
> > net 65.1111.5555.5555.5555.00
> > passive-interface Loopback0
> > default-information originate
> > never-set-attached-bit <<-- ?? not sure where this came from,
> >can't find documentation on it...
> >
> >i L2 133.8.0.0/16 [115/20] via 133.9.101.1, Serial1
> > 133.9.0.0/24 is subnetted, 5 subnets
> >i L1 133.9.6.0 [115/10] via 133.9.50.5, Ethernet0
> >i L2 133.9.2.0 [115/10] via 133.9.101.1, Serial1
> >
> >IS-IS Level-1 Link State Database:
> >LSPID LSP Seq Num LSP Checksum LSP Holdtime
ATT/P/OL
> >5555.5555.5555.00-00* 0x0000000D 0x12D1 1026 0/0/0
> > Area Address: 65.1111
> > NLPID: 0x81 0xCC
> > IP Address: 133.9.5.5
> > Metric: 10 IP 133.9.50.0 255.255.255.0
> > Metric: 0 IP 133.9.5.0 255.255.255.0
> > Metric: 10 IS 6666.6666.6666.01
> > Metric: 0 ES 5555.5555.5555
> >6666.6666.6666.00-00 0x0000000C 0xBF57 1024 0/0/0
> > Area Address: 65.1111
> > NLPID: 0x81 0xCC
> > IP Address: 133.9.6.6
> > Metric: 10 IP 133.9.50.0 255.255.255.0
> > Metric: 0 IP 133.9.6.0 255.255.255.0
> > Metric: 10 IS 6666.6666.6666.01
> > Metric: 0 ES 6666.6666.6666
> >6666.6666.6666.01-00 0x00000005 0xB5D1 1023 0/0/0
> > Metric: 0 IS 6666.6666.6666.00
> > Metric: 0 IS 5555.5555.5555.00
> >IS-IS Level-2 Link State Database:
> >LSPID LSP Seq Num LSP Checksum LSP Holdtime
ATT/P/OL
> >2222.2222.2222.00-00 0x00000011 0x4B4E 1003 0/0/0
> > Area Address: 02.1111
> > NLPID: 0x81 0xCC
> > IP Address: 133.9.2.2
> > Metric: 10 IP 133.9.101.0 255.255.255.0
> > Metric: 10 IS 5555.5555.5555.03
> > Metric: 0 IP 133.9.2.0 255.255.255.0
> > Metric: 10 IP 133.8.0.0 255.255.0.0
> >5555.5555.5555.00-00* 0x0000000C 0x34DD 1025 0/0/0
> > Area Address: 65.1111
> > NLPID: 0x81 0xCC
> > IP Address: 133.9.5.5
> > Metric: 10 IP 133.9.101.0 255.255.255.0
> > Metric: 10 IS 5555.5555.5555.03
> > Metric: 0 IP 0.0.0.0 0.0.0.0
> > Metric: 0 IP 133.9.5.0 255.255.255.0
> > Metric: 10 IP 133.9.6.0 255.255.255.0
> > Metric: 10 IP 133.9.50.0 255.255.255.0
> >5555.5555.5555.03-00* 0x00000005 0xD239 519 0/0/0
> > Metric: 0 IS 5555.5555.5555.00
> > Metric: 0 IS 2222.2222.2222.00
> >
> >!R2
> >interface Serial1
> > no ip address
> > encapsulation frame-relay
> > no fair-queue
> > clockrate 2000000
> > no frame-relay inverse-arp
> >interface Serial1.256 multipoint
> > ip address 133.9.101.1 255.255.255.0
> > ip router isis
> > frame-relay map clns 205 broadcast
> > frame-relay map ip 133.9.101.1 205
> > frame-relay map ip 133.9.101.2 205 broadcast
> > frame-relay map ip 133.9.101.5 206 broadcast
> > clns router isis
> > isis circuit-type level-2-only
> >router isis
> > net 02.1111.2222.2222.2222.00
> > passive-interface Loopback0
> >
> > 133.8.0.0/16 is variably subnetted, 2 subnets, 2 masks
> >i su 133.8.0.0/16 [115/10] via 0.0.0.0, Null0
> > 133.9.0.0/16 is variably subnetted, 7 subnets, 2 masks
> >i L2 133.9.5.0/24 [115/10] via 133.9.101.2, Serial1.256
> >i L2 133.9.6.0/24 [115/20] via 133.9.101.2, Serial1.256
> >i L2 133.9.50.0/24 [115/20] via 133.9.101.2, Serial1.256
> >i*L2 0.0.0.0/0 [115/10] via 133.9.101.2, Serial1.256
> >
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This archive was generated by hypermail 2.1.4 : Wed Oct 01 2003 - 07:24:36 GMT-3