From: Anh P Tran (anhtran81@optusnet.com.au)
Date: Sun Oct 09 2005 - 05:38:07 GMT-3
Hi Mike,
With ODR, the spoke will automatically get the default route from the hub so
you don't need to generate manually. All you need on the hub is to
redistribute the odr into your IGP network to get full connectivity. I guess
an lab would make it better.
R3 is the hub and R1 is the spoke
Rack1R3#show run int s1/2
Building configuration...
Current configuration : 106 bytes
!
interface Serial1/2
ip address 158.1.13.3 255.255.255.0
serial restart_delay 0
clockrate 128000
End
Rack1R3#show run | inc odr|cdp
router odr
cdp timer 5 <<<< This to speed up the cdp
Rack1R1#show run int s0/1
Building configuration...
Current configuration : 64 bytes
!
interface Serial0/1
ip address 158.1.13.1 255.255.255.0
End
No special configuration on R1 other than CDP enable which is on by default
for this interface
Rack1R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter
area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is 158.1.13.3 to network 0.0.0.0
158.1.0.0/24 is subnetted, 2 subnets
C 158.1.13.0 is directly connected, Serial0/1
C 158.1.1.0 is directly connected, FastEthernet0/0
150.1.0.0/24 is subnetted, 1 subnets
C 150.1.1.0 is directly connected, Loopback0
o* 0.0.0.0/0 [160/1] via 158.1.13.3, 00:00:01, Serial0/1 <<<< default
route generated by the hub
Rack1R3#show ip route odr
158.1.0.0/16 is variably subnetted, 16 subnets, 3 masks
o 158.1.1.0/24 [160/1] via 158.1.13.1, 00:00:02, Serial1/2
150.1.0.0/16 is variably subnetted, 8 subnets, 2 masks
o 150.1.1.0/24 [160/1] via 158.1.13.1, 00:00:02, Serial1/2 <<<< routes
learned from the spoke
Rack1R1#ping 150.1.3.3<<< R3 loopback
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 150.1.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/16/20 ms
Hope this help, appreciated any comments on this
Anh Tran
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
mikenoc@mindspring.com
Sent: Sunday, 9 October 2005 6:00 PM
To: ccielab@groupstudy.com
Subject: Configuring ODR
I have been playing around with ODR and have a question with this. When
configuring ODR it looks like the hub gets all of the networks on the
spokes, but the spokes do not get any networks from the hub. Are the usual
options to configure a default route on the spoke or is it common to
redistribute an IGP into the ODR router? I figure its probaby more common to
just configure a default route on the spokes. Is there a way to send a
default route to the spokes via the hub ? I didnt see a default information
originate command.
Thanks,
Mike F.
This archive was generated by hypermail 2.1.4 : Sun Nov 06 2005 - 22:00:49 GMT-3