From: Robert DeVito (robertdevito@xxxxxxxxxxx)
Date: Thu Dec 07 2000 - 07:43:40 GMT-3
Going back to the following scenerio:
Configure IGRP between R3 and R4. Ensure that all routers in the
network can access all interfaces on all the routers. Configuring
ONLY R3, send a default route to R4 without using static routes,
route maps, or summary addresses.
R2 (E0 - 134.1.32.1/20)
|e0
| OSPF Area 0
|e0
R3 (E0 - 134.1.32.2/20, S0 - 134.1.31.1/24)
\s0
\ IGRP
\s0
R4 (s0 - 134.1.31.2/24)
I have having a hard time getting the 134.1.32.X network to be redistributed
into IGRP. Here are my configs. I am asumming that after I am able to get
the 134.1.32.X network to redistribute into IGRP, I would add the "ip
default-netw 134.1.32.0" command to r3, then redistribute IGRP into OSPF in
R3, and that problem should be solved?????
Thanx in advanced.
R3 Config:
interface Ethernet0/0
ip address 134.1.32.2 255.255.240.0
ip irdp
ip irdp multicast
ip irdp preference 600
!
interface Serial0/0
ip address 134.1.31.1 255.255.255.0
no ip mroute-cache
clockrate 2000000
!
router ospf 1
summary-address 134.1.32.0 255.255.255.0
redistribute connected
network 134.1.32.0 0.0.0.255 area 0
default-metric 100
!
router igrp 1
redistribute ospf 1
passive-interface Ethernet0/0
network 134.1.0.0
!
ip classless
!
Gateway of last resort is not set
134.1.0.0/16 is variably subnetted, 4 subnets, 3 masks
O IA 134.1.3.0/24 [110/74] via 134.1.32.1, 00:00:28, Ethernet0/0
C 134.1.31.0/24 is directly connected, Serial0/0
C 134.1.32.0/20 is directly connected, Ethernet0/0
O IA 134.1.48.0/25 [110/84] via 134.1.32.1, 00:00:28, Ethernet0/0
150.100.0.0/24 is subnetted, 1 subnets
O E2 150.100.1.0 [110/500] via 134.1.32.1, 00:00:28, Ethernet0/0
I 150.200.0.0/16 [100/8976] via 134.1.31.2, 00:00:11, Serial0/0
Router 4 Config:
ip subnet-zero
no ip domain-lookup
!
interface Loopback0
ip address 150.200.2.1 255.255.255.0
!
interface Serial0
ip address 134.1.31.2 255.255.255.0
no fair-queue
!
interface Serial1
no ip address
shutdown
!
interface TokenRing0
no ip address
shutdown
!
router igrp 1
network 150.200.0.0
network 134.1.0.0
!
ip classless
!
Gateway of last resort is not set
150.200.0.0/24 is subnetted, 1 subnets
C 150.200.2.0 is directly connected, Loopback0
134.1.0.0/24 is subnetted, 2 subnets
I 134.1.3.0 [100/52100] via 134.1.31.1, 00:00:52, Serial0
C 134.1.31.0 is directly connected, Serial0
I 150.100.0.0/16 [100/52100] via 134.1.31.1, 00:00:52, Serial0
**** As you can see, I can see other routes that are being redistributed
into IGRP from OSPF, I just can not see the 134.1.32.X network.
----Original Message Follows----
From: Fred Ingham <fningham@worldnet.att.net>
Reply-To: fningham@worldnet.att.net
To: Robert DeVito <robertdevito@hotmail.com>
Subject: Re: Wording
Date: Wed, 06 Dec 2000 20:23:22 -0500
Or better yet an OSPF route that is a different subnet. For instance if
you configured r3-r4 link with 172.16.65.0/24
you couldn't use 172.16.0.0 as the default network. If the link
between r3-r2 were 172.17.x.y then you could use 172.17.0.0 as the
default network.
The network must exist in the routing table (of r3) as a connected,
static, or learned route. You could configure 10.1.1.3 as a loopback on
r3 and use 10.0.0.0 as the default network for instance. Remember to
advertise the default network under IGRP on r3 with a network statement.
Fred.
Robert DeVito wrote:
>
> Fred,
>
> I am assuming if I can not use the classless address of the link
> between R3 and R4 as the "default-network", I would have to append the
> ip default-network command to a OSPF learned network? i.e. the link
> between R3 and R2??
>
> Robert
>
> ----Original Message Follows----
> From: Fred Ingham
> Reply-To: Fred Ingham
> To: Robert DeVito , ccielab@groupstudy.com
> Subject: Re: Wording
> Date: Wed, 06 Dec 2000 17:05:49 -0500
> You also would have to redistribute IGRP into OSPF on r3 to ping the
> R4
> addresses from r2. Best to use route maps on both OSPF and IGRP
> redistributions to prevent routing loops. Default network is the way
> to
> get a default into IGRP. The default network should be in r3's routing
> table and not the same classful address configured on r4. r4 should
> have the ip classless command and check that the r4 interface to r3
> has
> split horizon enabled.
> Fred.
> Robert DeVito wrote:
> >
> > R2
> > |
> > | Area 0
> > |
> > R3-------------------R4
> >
> > OSPF is configured between R2 and R3 (working good). I am trying to
> > figure out what they mean below and how would you do that? Would you
> > configure IGRP between R3 and R4 and then redistribute OSPF into
> IGRP
> > and use the " ip default-network" in R3?
> >
> > Configure IGRP between R3 and R4. Ensure that all routers in the
> > network can access all interfaces on all the routers. Configuring
> > ONLY R3, send a default route to R4 without using static routes,
> route
> > maps, or summary addresses.
> >
> > Thank you,
> > Robert DeVito
> >
> >
> ----------------------------------------------------------------------
> > Get more from the Web. FREE MSN Explorer download :
> > http://explorer.msn.com
> >
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