From: Tony Kwok (sykwok8@yahoo.com)
Date: Sat Feb 08 2003 - 00:12:35 GMT-3
Hi,
I have found one very interesting thing on isis. Does
anyone can explain. The following is my netwrok
topology. The R1 has two ethernet interface. One is
connecting to R2.
R1------------R2
R1 configuration.
================
interface Ethernet1/0
ip address 150.50.17.1 255.255.255.0
Description connecting to R2
ip router isis
!
interface Ethernet1/1
ip address 150.50.200.1 255.255.255.0
half-duplex
router isis
passive-interface Ethernet1/1
net 11.1111.1111.1111.1111.00
is-type level-1
R2 Configuration
===============
interface FastEthernet0/0
ip address 150.50.17.2 255.255.255.0
ip router isis
duplex auto
speed auto
router isis
net 11.1111.1111.1111.1112.00
is-type level-1
***************************************
From this configuration, I suppose that I cannot
receive the route 150.50.200.0/24 on R2 through the
isis because the interface has not join the isis and
also it has not redistribute out by the redistribute
command. However, I found that I am wrong. Does
someone can explain why? I have tested that the route
will be disappeared once I delete the passive
interface command on the router configuration. Thx.
R2#sh ip route isis
i L1 150.50.200.0/24 [115/10] via 150.50.17.1,
FastEthernet0/0
Regards,
Tony
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