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EIGRP & distance command

h.alouatiq
Level 1
Level 1

Hello,

I have tried to use "distance" command to selectively set the AD for an incoming route from an eigrp neighbor, without success.

The following are my configs:

routerA (running 12.1.6 and configured with "distance" command):

interface Serial3

no ip address

encapsulation frame-relay IETF

clockrate 2000000

frame-relay intf-type dce

!

interface Serial3.1 point-to-point

ip address 12.0.1.1 255.255.255.252

frame-relay interface-dlci 102

!

router eigrp 200

passive-interface default

no passive-interface Serial3.1

network 12.0.0.0

distance 15 12.0.1.2 0.0.0.0 55

no auto-summary

no eigrp log-neighbor-changes

!

access-list 55 permit 1.1.1.1

routerB:

interface Loopback1

ip address 1.1.1.1 255.255.255.255

no ip directed-broadcast

!

interface Loopback2

ip address 2.2.2.2 255.255.255.255

no ip directed-broadcast

!

interface Serial0

no ip address

no ip directed-broadcast

encapsulation frame-relay IETF

no ip mroute-cache

!

interface Serial0.1 point-to-point

ip address 12.0.1.2 255.255.255.252

no ip directed-broadcast

frame-relay interface-dlci 102

!router eigrp 200

redistribute connected

passive-interface default

no passive-interface Loopback1

no passive-interface Loopback2

no passive-interface Serial0.1

network 12.0.0.0

no auto-summary

!

"Sho ip rou eigrp" and "show ip eigrp topo" output :

r1_4700_2033#sho ip rou eig

1.0.0.0/32 is subnetted, 1 subnets

D EX 1.1.1.1 [170/2297856] via 12.0.1.2, 00:00:00, Serial3.1

2.0.0.0/32 is subnetted, 1 subnets

D EX 2.2.2.2 [170/2297856] via 12.0.1.2, 00:00:00, Serial3.1

10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

D EX 10.0.2.0/24 [170/2681856] via 12.0.1.2, 00:00:00, Serial3.1

r1_4700_2033#

r1_4700_2033#sho ip eig top

r1_4700_2033#sho ip eig topology

IP-EIGRP Topology Table for AS(200)/ID(12.0.1.1)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,

r - reply Status, s - sia Status

P 2.2.2.2/32, 1 successors, FD is 2297856

via 12.0.1.2 (2297856/128256), Serial3.1

P 1.1.1.1/32, 1 successors, FD is 2297856

via 12.0.1.2 (2297856/128256), Serial3.1

P 10.0.2.0/24, 1 successors, FD is 2681856

via 12.0.1.2 (2681856/2169856), Serial3.1

P 12.0.1.0/30, 1 successors, FD is 2169856

via Connected, Serial3.1

As you can see, the "distance" command looks to have to effect on the AD for route 1.1.1.1.

1.1.1.1/32 eigrp route remains with its defualt (EIGRP EX = 170).

Only "distance eigrp <value> internal" or "distance eigrp <value> internal"

commands work. But those command will apply for all routes.

Any idea how can selectively set the AD on EIGRP for received routes ?

Thanks in advance...

2 Replies 2

steve.barlow
Level 7
Level 7

What you can try is add under eigrp on routerB "network 1.0.0.0", see if that makes a difference (ie make the loopback's route an eigrp route and not an external route). Not sure if this command works with external EIGRP. Let us know.

Hope it helps.

Steve

bbranch
Level 3
Level 3

According to the config guide you can not selectivelty set the Admin Distance for EIGRP:

Note You cannot set the administrative distance in EIGRP against certain routes or sources, as you can with other protocols. The command does not work this way with EIGRP

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fiprrp_r/1rfeigrp.htm#1017590

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