RE: route filters

From: Michael Le (mmle@xxxxxxxxxxxxxxxxx)
Date: Tue Feb 27 2001 - 13:46:16 GMT-3


   
The 'advertise-routes' and 'received-routes' commands are only available if
you originally set it up as a soft-configuration. This is a cool feature
that allows you to change the filters on the fly and modify which routes you
take in, but it requires additional memory to keep track of the routes
you've learned.
To check the metrics, look on your neighboring router instead of the
advertising router and see if he's learning the routes properly. If not, try
to be more specific with your access-list.

Michael

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Steven Weber
Sent: Tuesday, February 27, 2001 6:58 AM
To: CCIELab@groupstudy.com; Elias Hill; Elias Hill
Subject: RE: route filters

i try that command but it comes back as 'no such neighbor' , what
now?

Thanks,

Steve

----- Original Message -----

From: Elias Hill

To: Elias Hill ;CCIELab@groupstudy.com ;Steven Weber

Sent: 2/27/01 1:28:55 AM

Subject: RE: route filters

The best command that I know of is:

show ip bgp neighbors [routes | advertised-routes |

received-routes]

By comparing the results of the "routes", "advertised-routes", and

"received-routes" keywords, you should be able to determine the

functionality of your route-maps.

Hope this helps

-----Original Message-----

From: Steven Weber [mailto:itweber@earthlink.net ]

Sent: Monday, February 26, 2001 4:00 PM

To: CCIELab@groupstudy.com;
Elias Hill

Subject: RE: route filterrs

so how do I know if my route map is doing its job?

----- Original Message -----

From: Elias Hill

To: CCIELab@groupstudy.com
;Steven Weber

Sent: 2/27/01 1:00:50 AM

Subject: RE: route filters

Let me know if I am incorrect... the "0 matches" refers to policy

routing

applications, not route-maps applied to distribution/redistribution.

-----Original Message-----

From: Steven Weber [mailto:itweber@earthlink.net
]

Sent: Monday, February 26, 2001 9:32 PM

To: CCIE GROUP

Subject: route filters

I am trying to filter a route from being inserted as well as

changing the metric on the other routes enclosed is a sh run. I'm trying to

filter 2.1.1.1 but not 2.2.1.1 and change its metric along with

200.200.200.1 to

5 but the show route-map comes up with 0 matches, what am I doing

wrong?

Regards,

--- Steven Weber

--- itweber@earthlink.net

--- EarthLink: It's your Internet.

hostname r4

!

!

no ip domain-lookup

!

interface

Loopback0

ip address 10.44.1.1 255.255.0.0

no logging event

subif-link-status

!

interface Loopback1

ip address 200.200.200.1

255.255.255.0

no logging event subif-link-status

!

interface

Ethernet0

ip address 10.4.1.1 255.255.0.0

no logging event

subif-link-status

no keepalive

!

interface Serial0

ip

address 10.34.1.2 255.255.0.0

no logging event

subif-link-status

!

interface Serial1

no ip address

no

logging event subif-link-status

shutdown

!

interface

BRI0

no ip address

no logging event

subif-link-status

shutdown

!

router ospf 1

network

10.34.0.0 0.0.255.255 area 3

network 10.4.0.0 0.0.255.255 area

3

network 10.44.0.0 0.0.255.255 area 3

area 3

stub

!

router rip

network 200.200.200.0

!

router bgp

1

no synchronization

network 10.44.1.1 mask

255.255.255.255

redistribute static

redistribute

rip

neighbor 10.33.1.33 remote-as 2

neighbor 10.33.1.33

ebgp-multihop 2

neighbor 10.33.1.33 update-source

Loopback0

neighbor 10.33.1.33 route-map FILTER out

no

auto-summary

!

no ip classless

ip route 2.1.1.0 255.255.255.0

Null0

ip route 2.2.1.0 255.255.255.0 Null0

access-list 1 permit 0.0.0.0

255.255.255.0

route-map FILTER permit 10

match ip address

1

set metric 5

!

route-map FILTER deny

20

!

!

line con

0

exec-timeout 0

0

r4#sh

rout

route-map FILTER, permit, sequence 10

  Match

clauses:

    ip address (access-lists): 1

  Set

clauses:

    metric 5

  Policy routing matches: 0

packets, 0 bytes

route-map FILTER, deny, sequence 20

  Match

clauses:

  Set clauses:

  Policy routing matches: 0 packets, 0

bytes

r4#sh ip rou

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, * - candidate default

       U -

per-user static route, o - ODR

Gateway of last resort is 10.34.1.1 to network 0.0.0.0

     2.0.0.0/24 is subnetted, 2

subnets

S 2.2.1.0 is directly connected,

Null0

S 2.1.1.0 is directly connected,

Null0

     10.0.0.0/16 is subnetted, 3

subnets

C 10.4.0.0 is directly connected,

Ethernet0

C 10.44.0.0 is directly

connected, Loopback0

C 10.34.0.0 is

directly connected, Serial0

B 22.0.0.0/8 [20/0] via

10.33.1.33, 01:28:12

C 200.200.200.0/24 is directly

connected, Loopback1

O*IA 0.0.0.0/0 [110/65] via 10.34.1.1, 01:28:18,

Serial0

r4#



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