From: Chacko, Raj (RChacko@DRAFTNET.com)
Date: Thu Nov 03 2005 - 02:15:39 GMT-3
Hi, I am struggling with the following topology and for the life of me, I
don't understand why is it that R6, one of the spokes, doesn't install L2
routes learnt from the HUB which R4 has learnt from R2. I see that the
routes from R5 do show up in the R6 RIB as L2 routes however. (when I
redistributed L1 into L2 at the Hub, I see these routes in R6 as ia, but why
do I have to dot that)
Thanks & Regards,
Raj
--------------Here is the topology--------------------
Hub and spoke design with R4 as the HUB, a Multipoint subinterface
connecting to R2 and R6 and a Point-2-Point connecting to R5
R2(L2only)_____NET0102__
\
\
\R4(L1 on s0.54),(DIS)
/ \
/ \(NET0045)
/ \
R6(L1,L2)_____NET0426__/ \__R5(L1 only)
---------R4 has two ISIS processes as follows--------
R4#sh run | b ^router isis
router isis 426
net 47.0426.4444.4444.4444.00
redistribute isis ip level-2 into level-1 distribute-list 138
!
router isis
net 47.0045.4444.4444.4444.00
is-type level-1
max-lsp-lifetime 3600
access-list 138 permit ip host 137.10.200.0 host 255.255.255.0
-------------------AND THE INTERFACES-----------------
R4#sh run int s0.54
Building configuration...
Current configuration : 283 bytes
!
interface Serial0.54 multipoint
ip address 137.10.45.4 255.255.255.240
ip router isis
frame-relay map clns 405 broadcast
frame-relay map ip 137.10.45.4 405
frame-relay map ip 137.10.45.5 405 broadcast compress active
isis circuit-type level-1
isis hello-multiplier 20
end
R4#sh run int s0.246
Building configuration...
Current configuration : 323 bytes
!
interface Serial0.246 multipoint
ip address 137.10.100.4 255.255.255.224
ip router isis 426
frame-relay map clns 401 broadcast
frame-relay map clns 406 broadcast
frame-relay map ip 137.10.100.2 401 broadcast
frame-relay map ip 137.10.100.4 406
frame-relay map ip 137.10.100.6 406 broadcast
isis priority 125
end
------------------------------------------------------------
R6#sh run | b ^router isis
router isis
net 47.0426.6666.6666.6666.00
!___________________________________________________________
R2#sh run | b ^router isis
router isis
net 47.0102.2222.2222.2222.00
redistribute connected route-map conn2isis
redistribute ospf 1 metric 20 match internal external 1 external 2
route-map ospf2isis
passive-interface Loopback0
is-type level-2-only
!______________________________________________________________
R5#sh run | b ^router isis
router isis
net 47.0045.5555.5555.5555.00
passive-interface Loopback1
passive-interface Loopback2
passive-interface Loopback3
is-type level-1
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