From: Jenkins, Buddy (buddy.jenkins@xxxxxxxx)
Date: Tue Apr 30 2002 - 03:21:56 GMT-3
Do a search on group study archive for this topic
OSPF;IGRP;REDISTRIBUTION
You will see many threads about your problem. Be sure to pick one thread and f
ollow it through from start to finish. What you will find out is that since IG
RP is classfull and EIGRP is classless the 25 bit mask that you have on the fra
me relay 0.256 interface does not "fit" into the IGRP 24 bit interface. Your c
hallenge is to make this route with a 25 bit mask fit into a classful protocol
like IGRP. This is probably the most important concept you will need to grasp.
This redistribution of vlsm masks will appear time and time again from RIP <-
> OSPF, EIGRP <-> IGRP, etc. There are many ways to solve this problem and I w
ould reccomend knowing all of them very well.
Buddy
-----Original Message-----
From: CCIE2B [mailto:ccie2b@cox.net]
Sent: Tuesday, April 30, 2002 2:29 PM
To: ccielab@groupstudy.com
Subject: EIGRP-->IGRP Redistribution (Link Missing on IGRP Router)
All,
I am redistributing EIGRP into IGRP on R2, they have different AS #s. On the
IGRP router R4, I see all the redistributed routes except the interface for
the frame-relay network on R2. The line between the R2 and R4 router is frame
relay P2P. Here are the config's hopefully it will help. TIA
Router 2
R2#wr t
interface Loopback0
ip address 200.200.200.2 255.255.255.255
!
interface Ethernet0
ip address 150.50.17.2 255.255.255.0
!
interface Serial0
no ip address
encapsulation frame-relay IETF
no ip route-cache
no ip mroute-cache
no fair-queue
frame-relay lmi-type ansi
!
interface Serial0.24 point-to-point
ip address 150.50.24.2 255.255.255.0
no ip route-cache
no ip split-horizon
no ip mroute-cache
frame-relay interface-dlci 104
!
interface Serial0.256 multipoint
ip address 150.50.100.2 255.255.255.224
no ip route-cache
no ip split-horizon
no ip mroute-cache
frame-relay interface-dlci 105
frame-relay interface-dlci 106
!
interface BRI0
ip address 150.50.9.2 255.255.255.192
!
router eigrp 1
redistribute igrp 2
passive-interface Serial0.24
network 150.50.9.0 0.0.0.63
network 150.50.17.0 0.0.0.255
network 150.50.24.0 0.0.0.255
network 150.50.100.0 0.0.0.31
network 200.200.200.2 0.0.0.0
default-metric 1500 10 255 1 1500
no auto-summary
no eigrp log-neighbor-changes
!
router igrp 2
redistribute eigrp 1
passive-interface Serial0.256
network 150.50.0.0
default-metric 10000 10 255 1 1500
R2#sh ip route
200.200.200.0/24 is variably subnetted, 2 subnets, 2 masks
I 200.200.200.0/24 [100/8976] via 150.50.24.4, 00:00:51, Serial0.24
C 200.200.200.2/32 is directly connected, Loopback0
172.16.0.0/21 is subnetted, 1 subnets
D 172.16.32.0 [90/2297856] via 150.50.100.6, 00:03:07, Serial0.256
I 10.0.0.0/8 [100/8486] via 150.50.24.4, 00:00:51, Serial0.24
150.50.0.0/16 is variably subnetted, 8 subnets, 4 masks
D 150.50.200.0/24 [90/307200] via 150.50.17.1, 00:03:07, Ethernet0
D 150.50.6.0/25 [90/2681856] via 150.50.100.6, 00:03:08, Serial0.256
D 150.50.7.0/25 [90/2195456] via 150.50.100.6, 00:03:08, Serial0.256
[90/2195456] via 150.50.100.5, 00:03:08, Serial0.256
C 150.50.9.0/26 is directly connected, BRI0
C 150.50.17.0/24 is directly connected, Ethernet0
D 150.50.18.0/24 [90/729600] via 150.50.17.1, 00:03:09, Ethernet0
C 150.50.24.0/24 is directly connected, Serial0.24
C 150.50.100.0/27 is directly connected, Serial0.256
R2#
R2#sh ip eigrp top
P 10.0.0.0/8, 1 successors, FD is 2172416
via Redistributed (2172416/0)
P 150.50.200.0/24, 1 successors, FD is 307200
via 150.50.17.1 (307200/281600), Ethernet0
P 172.16.32.0/21, 1 successors, FD is 2297856
via 150.50.100.6 (2297856/128256), Serial0.256
P 150.50.6.0/25, 1 successors, FD is 2681856
via 150.50.100.6 (2681856/2169856), Serial0.256
P 150.50.7.0/25, 2 successors, FD is 2195456
via 150.50.100.5 (2195456/281600), Serial0.256
via 150.50.100.6 (2195456/281600), Serial0.256
P 150.50.9.0/26, 1 successors, FD is 40512000
via Connected, BRI0
P 150.50.17.0/24, 1 successors, FD is 281600
via Connected, Ethernet0
P 150.50.18.0/24, 1 successors, FD is 729600
via 150.50.17.1 (729600/704000), Ethernet0
P 150.50.24.0/24, 1 successors, FD is 2169856
via Connected, Serial0.24
P 150.50.100.0/27, 1 successors, FD is 2169856
via Connected, Serial0.256
P 200.200.200.0/24, 1 successors, FD is 2297856
via Redistributed (2297856/0)
P 200.200.200.2/32, 1 successors, FD is 128256
via Connected, Loopback0
R2#
ROUTER 4
R4#
interface Loopback0
ip address 200.200.200.4 255.255.255.255
!
interface FastEthernet0/0
ip address 10.1.1.4 255.255.255.0
!
interface Serial0/0
ip address 150.50.24.4 255.255.255.0
encapsulation frame-relay IETF
ip split-horizon
no fair-queue
clockrate 64000
frame-relay lmi-type ansi
!
router igrp 2
passive-interface FastEthernet0/0
network 10.0.0.0
network 150.50.0.0
!
R4#sh ip route
200.200.200.0/24 is variably subnetted, 2 subnets, 2 masks
I 200.200.200.0/24 is possibly down,
routing via 150.50.24.2, Serial0/0
C 200.200.200.4/32 is directly connected, Loopback0
I 172.16.0.0/16 [100/10976] via 150.50.24.2, 00:00:32, Serial0/0
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, FastEthernet0/0
150.50.0.0/24 is subnetted, 4 subnets
I 150.50.200.0 [100/8676] via 150.50.24.2, 00:00:32, Serial0/0
I 150.50.17.0 [100/8576] via 150.50.24.2, 00:00:34, Serial0/0
I 150.50.18.0 [100/8826] via 150.50.24.2, 00:00:34, Serial0/0
C 150.50.24.0 is directly connected, Serial0/0
R4#
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:58:22 GMT-3