Secondary_Address_Help_With_ISIS_Thru_Tunnel_Interface

From: ccie2002@bellsouth.net
Date: Sat Nov 16 2002 - 17:19:15 GMT-3


Hello all:

I need some help with secondary addresses with isis thru a
Tunnel interface. I have Cisco 2509 that is running rip. However,
thru the tunnel interface and ethernet interface I am running
isis. Now the kicker is that I put a secondary
address on my ethernet. On the other end of my Cisco 2509 is a Cisco 2502 that
is running eigrp. Also I have a tunnel interface on my Cisco 2502 is running
isis. My goal is to have "only" the secondary address of the ethernet address
show up thru the tunnel as isis. I do not want the primary address (150.3.99.0)
to show up thru the tunnel as isis. I would like the primary address of the
ethernet to show up as eigrp route on my Cisco 2502. I only want the admin
distance for the primary address changed not for the other routes on the
2502.

Below is the basic topogoly of my network

tunnel A isis---------------------------- Tunnel B/isis

rip rip/eigrp eigrp/eigrp eigrp
Cisco2509-----Cisco2504-----Cisco2503----Cisco2052

I have tried the following.

    1) tried the distrubute-list for the isis process for both
       routers denying the ethernet address thru the tunnel.
    
    2) raised the admin distance on the Cisco2052 with an access-list

My question is this possible to deny a primary route thru tunnel and only
have the secondary route show up thru the tunnel on the interface. Please
note: I only want to influence/change one route. Any suggestions on
how to do this ?

Cisco2509#

interface Loopback10
 ip address 190.190.10.1 255.255.255.252
 no ip directed-broadcast
 ip router isis
!
interface Tunnel0
 ip address 191.192.193.2 255.255.255.252
 no ip directed-broadcast
 ip router isis
 tunnel source 150.3.3.3
 tunnel destination 150.3.7.7
!
interface Ethernet0
 ip address 200.200.200.1 255.255.255.252 secondary
 ip address 150.3.99.9 255.255.255.0
 no ip directed-broadcast
 ip router isis

router isis
 net 54.0003.0003.0003.00

router rip
 version 1
 network 51.0.0.0
 network 150.3.0.0

Cisco2502

interface Loopback7
 ip address 191.193.193.1 255.255.255.252
 ip router isis
!
interface Loopback100
 ip address 195.197.200.1 255.255.255.240
!
interface Tunnel0
 ip address 191.192.193.1 255.255.255.252
 ip router isis
 tunnel source 150.3.7.7
 tunnel destination 150.3.3.3

router isis
 redistribute connected metric 10 route-map LOOP
 distance 200 191.192.193.0 0.0.0.255 88
 net 54.0007.0007.0007.00

router eigrp 1
 network 100.0.0.0
 network 150.3.0.0
 network 150.7.0.0
 no auto-summary
 no eigrp log-neighbor-changes

access-list 88 permit 150.3.99.0 0.0.0.255

Cisco2502#show ip route isis
     200.200.200.0/30 is subnetted, 1 subnets
i L1 200.200.200.0 [115/20] via 191.192.193.2, Tunnel0
     190.190.0.0/30 is subnetted, 1 subnets
i L1 190.190.10.0 [115/20] via 191.192.193.2, Tunnel0
     150.3.0.0/16 is variably subnetted, 22 subnets, 3 masks
i L1 150.3.99.0/24 [115/20] via 191.192.193.2, Tunnel0
Cisco2502#

Cisco2502#show ip eigrp top
IP-EIGRP Topology Table for AS(1)/ID(150.3.7.7)

P 150.3.99.0/24, 0 successors, FD is Inaccessible
         via 150.3.90.6 (2560512256/2560000256), Serial0
Cisco2502#



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