From: "Hoonpongsimanont
Date: Fri Oct 08 2004 - 12:58:11 GMT-3
Hi Sean,
What I want to do is remove ATT bit set from R7, which is now accomplished
by set-attached-bit command as suggested by Sameh.
But thanks for your help anyway, coz you just brought up a new way (at least
for me) to filter specific route from routing table.
Cheers,
David
-----Original Message-----
From: Sean C [mailto:Upp_and_Upp@hotmail.com]
Sent: Friday, October 08, 2004 10:19 PM
To: Hoonpongsimanont, Chalermchai; ccielab@groupstudy.com
Subject: Re: isis never-set-attached-bit hidden command
Hi David,
Kinda lost at what you are looking for since we don't know what ACL 100
does. Are you just looking to stop the default route from being included in
R5's routing table? If so, the one way I've been able to accomplish this is
by:
On R5:
router isis
distance 255 0.0.0.0 255.255.255.255 10
!
access-list 10 permit 0.0.0.0
Hope I'm on the write track here with what you're trying to accomplish, Sean
----- Original Message -----
From: "Hoonpongsimanont, Chalermchai"
<chalermchai.hoonpongsimanont@atosorigin.com>
To: <ccielab@groupstudy.com>
Sent: Friday, October 08, 2004 9:07 AM
Subject: isis never-set-attached-bit hidden command
> Hi Folks,
>
>
>
> I have a problem when trying to filter default route on ISIS Level 1
router.
>
>
>
>
> R5 (L1) --- R7 (L1/L2)
>
>
>
> On R5,
>
>
>
> r5#show isis database
>
>
>
> IS-IS Level-1 Link State Database:
>
> LSPID LSP Seq Num LSP Checksum LSP Holdtime
ATT/P/OL
>
> r5.00-00 * 0x00000009 0xC158 661 0/0/0
>
> r7.00-00 0x0000000F 0x8FC3 1192 1/0/0
<-
> ATT Set to 1
>
> r7.01-00 0x00000005 0x1E9A 660 0/0/0
>
>
>
> r5#sh ip route isis
>
> 150.50.0.0/16 is variably subnetted, 19 subnets, 3 masks
>
> i L1 150.50.60.0/24 [115/20] via 150.50.50.7, FastEthernet0/0
>
> i ia 150.50.4.0/24 [115/158] via 150.50.50.7, FastEthernet0/0
>
> i ia 150.50.8.8/32 [115/148] via 150.50.50.7, FastEthernet0/0
>
> i L1 150.50.7.7/32 [115/10] via 150.50.50.7, FastEthernet0/0
>
> i L1 150.50.101.0/30 [115/20] via 150.50.50.7, FastEthernet0/0
>
> i*L1 0.0.0.0/0 [115/10] via 150.50.50.7, FastEthernet0/0
>
>
>
> R7 Configuration
>
> !
>
> router isis
>
> net 47.0007.7777.7777.7777.00
>
> redistribute isis ip level-2 into level-1 distribute-list 100
>
> passive-interface Loopback0
>
> !
>
>
>
> I don't want this default route to show up on R5. The only one way I found
> is configuring hidden command "never-set-attached-bit" under router isis
of
> R7, and it's working fine.
>
>
>
> R7 Configuration
>
> !
>
> router isis
>
> net 47.0007.7777.7777.7777.00
>
> never-set-attached-bit
>
> redistribute isis ip level-2 into level-1 distribute-list 100
>
> passive-interface Loopback0
>
> !
>
>
>
> On R5,
>
> r5#show isis database
>
>
>
> IS-IS Level-1 Link State Database:
>
> LSPID LSP Seq Num LSP Checksum LSP Holdtime
ATT/P/OL
>
> r5.00-00 * 0x00000009 0xC158 431 0/0/0
>
> r7.00-00 0x00000010 0x85D4 1153 0/0/0
<-
> ATT Set to 0
>
> r7.01-00 0x00000006 0x1C9B 1166 0/0/0
>
> r5#show ip route isis
>
> 150.50.0.0/16 is variably subnetted, 19 subnets, 3 masks
>
> i L1 150.50.60.0/24 [115/20] via 150.50.50.7, FastEthernet0/0
>
> i ia 150.50.4.0/24 [115/158] via 150.50.50.7, FastEthernet0/0
>
> i ia 150.50.8.8/32 [115/148] via 150.50.50.7, FastEthernet0/0
>
> i L1 150.50.7.7/32 [115/10] via 150.50.50.7, FastEthernet0/0
>
> i L1 150.50.101.0/30 [115/20] via 150.50.50.7, FastEthernet0/0
>
> <- Default route is gone ->
>
>
>
> I don't think I will get the point when using hidden command in real lab.
Is
> there any other way to do this kind of thing? Thanks in advance.
>
>
>
> Cheers,
>
> David
>
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