Re: How to remove Null0 in the routing table?

From: Aamer Kaleem (kaleemaamer@yahoo.com)
Date: Tue Feb 04 2003 - 22:05:56 GMT-3


make its admin. distance to 255...

Aamer

--- love cisco <love_cisco@hotmail.com> wrote:
> How to remove Null0 in the routing table? Because
> BGP aggregate-address
> create Null0 route. If the lab ask you remove it.
>
> router bgp 100
> network 192.168.10.0 mask 255.255.255.240
> network 192.168.10.16 mask 255.255.255.240
> network 192.168.20.32 mask 255.255.255.240
> network 192.168.20.48 mask 255.255.255.240
> aggregate-address 192.168.10.0 255.255.255.0
> summary-only
> aggregate-address 192.168.20.0 255.255.255.0
> summary-only
> neighbor 150.50.17.2 remote-as 200
> neighbor 150.50.17.2 update-source Loopback0
> no auto-summary
>
>
> R1#sh ip route
> Codes: C - connected, S - static, I - IGRP, R - RIP,
> M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA
> - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF
> NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external
> type 2, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS
> level-2, ia - IS-IS inter
> area
> * - candidate default, U - per-user static
> route, o - ODR
> P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> 200.0.0.0/32 is subnetted, 2 subnets
> C 200.0.0.1 is directly connected, Loopback0
> B 200.0.0.4 [20/0] via 150.50.17.2, 13:46:01
> 192.168.10.0/24 is variably subnetted, 3
> subnets, 2 masks
> B 192.168.10.0/24 [200/0] via 0.0.0.0,
> 14:33:26, Null0
> C 192.168.10.0/28 is directly connected,
> Loopback1
> C 192.168.10.16/28 is directly connected,
> Loopback2
> 192.168.20.0/24 is variably subnetted, 3
> subnets, 2 masks
> C 192.168.20.48/28 is directly connected,
> Loopback4
> C 192.168.20.32/28 is directly connected,
> Loopback3
> B 192.168.20.0/24 [200/0] via 0.0.0.0,
> 14:18:13, Null0
> 10.0.0.0/25 is subnetted, 1 subnets
> B 10.1.1.0 [20/0] via 150.50.17.2, 13:46:01
> 150.50.0.0/24 is subnetted, 1 subnets
> C 150.50.17.0 is directly connected,
> FastEthernet0/0
>
>
>
>



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