Hey, I was reading on ODR yesterday and attempted to make it work and ran into some problems and was wondering if you guys can explain why this is happening. I used a hub and 2 spokes to test first in GNS3 and then with real gear. I first tried using VLAN routing to connect them. Here's the topology:
I attached a picture of the original router configs (
without ODR activated) in case you want to have a look
.
HUB
HUB#sh 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, su - IS-IS summary, 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 not set
10.0.0.0/32 is subnetted, 1 subnets
C 10.1.1.1 is directly connected, Loopback0
C 192.168.0.0/24 is directly connected, Vlan101
C 192.168.1.0/24 is directly connected, Vlan100
HUB#sh cdp nei det
Device ID: SPOKE2
Entry address(es):
IP address: 192.168.0.2
Platform: Cisco 3725, Capabilities: Router Switch IGMP
Interface: FastEthernet1/1, Port ID (outgoing port): FastEthernet0/0
Holdtime : 135 sec
Version :
Cisco IOS Software, 3700 Software (C3725-ADVENTERPRISEK9-M), Version 12.4(15)T8, RELEASE SOFTWARE (fc3)
Technical Support: Support and Documentation - Cisco Systems
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Mon 01-Dec-08 19:46 by prod_rel_team
advertisement version: 2
VTP Management Domain: ''
Duplex: full
Device ID: SPOKE1
Entry address(es):
IP address: 192.168.1.2
Platform: Cisco 3725, Capabilities: Router Switch IGMP
Interface: FastEthernet1/0, Port ID (outgoing port): FastEthernet0/0
Holdtime : 144 sec
Version :
Cisco IOS Software, 3700 Software (C3725-ADVENTERPRISEK9-M), Version 12.4(15)T8, RELEASE SOFTWARE (fc3)
Technical Support: Support and Documentation - Cisco Systems
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Mon 01-Dec-08 19:46 by prod_rel_team
advertisement version: 2
VTP Management Domain: ''
Duplex: full
SPOKE1
SPOKE1#sh 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, su - IS-IS summary, 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 not set
10.0.0.0/32 is subnetted, 1 subnets
C 10.1.1.2 is directly connected, Loopback0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
SPOKE1#sh cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
HUB Fas 0/0 130 R S I 3725 Fas 1/0
SPOKE1#sh cdp nei det
Device ID: HUB
Entry address(es):
IP address: 192.168.0.1
Platform: Cisco 3725, Capabilities: Router Switch IGMP
Interface: FastEthernet0/0, Port ID (outgoing port): FastEthernet1/0
Holdtime : 128 sec
Version :
Cisco IOS Software, 3700 Software (C3725-ADVENTERPRISEK9-M), Version 12.4(15)T8, RELEASE SOFTWARE (fc3)
Technical Support: Support and Documentation - Cisco Systems
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Mon 01-Dec-08 19:46 by prod_rel_team
advertisement version: 2
VTP Management Domain: ''
Native VLAN: 101
Duplex: full
SPOKE1#sh 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, su - IS-IS summary, 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 not set
10.0.0.0/32 is subnetted, 1 subnets
C 10.1.1.2 is directly connected, Loopback0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
SPOKE1#sh cdp nei det
Device ID: HUB
Entry address(es):
IP address: 192.168.0.1
Platform: Cisco 3725, Capabilities: Router Switch IGMP
Interface: FastEthernet0/0, Port ID (outgoing port): FastEthernet1/0
Holdtime : 137 sec
Version :
Cisco IOS Software, 3700 Software (C3725-ADVENTERPRISEK9-M), Version 12.4(15)T8, RELEASE SOFTWARE (fc3)
Technical Support: Support and Documentation - Cisco Systems
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Mon 01-Dec-08 19:46 by prod_rel_team
advertisement version: 2
VTP Management Domain: ''
Native VLAN: 101
Duplex: full
SPOKE2
SPOKE2#sh 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, su - IS-IS summary, 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 not set
10.0.0.0/32 is subnetted, 1 subnets
C 10.1.1.3 is directly connected, Loopback0
C 192.168.0.0/24 is directly connected, FastEthernet0/0
SPOKE2#sh cdp nei det
Device ID: HUB
Entry address(es):
IP address: 192.168.1.1
Platform: Cisco 3725, Capabilities: Router Switch IGMP
Interface: FastEthernet0/0, Port ID (outgoing port): FastEthernet1/1
Holdtime : 147 sec
Version :
Cisco IOS Software, 3700 Software (C3725-ADVENTERPRISEK9-M), Version 12.4(15)T8, RELEASE SOFTWARE (fc3)
Technical Support: Support and Documentation - Cisco Systems
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Mon 01-Dec-08 19:46 by prod_rel_team
advertisement version: 2
VTP Management Domain: ''
Native VLAN: 100
Duplex: full
CDP is working and PINGS are successful from HUB to SPOKE from interface to interface.
Now I turn on ODR
HUB#conf t
Enter configuration commands, one per line. End with CNTL/Z.
HUB(config)#router odr
HUB(config-router)#do sh 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, su - IS-IS summary, 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 not set
10.0.0.0/32 is subnetted, 2 subnets
o 10.1.1.3 [160/1] via 192.168.0.2, 00:00:08, FastEthernet1/1
C 10.1.1.1 is directly connected, Loopback0
C 192.168.0.0/24 is directly connected, Vlan101
C 192.168.1.0/24 is directly connected, Vlan100
HUB(config-router)#do sh 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, su - IS-IS summary, 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 not set
10.0.0.0/32 is subnetted, 3 subnets
o 10.1.1.2 [160/1] via 192.168.1.2, 00:00:03, FastEthernet1/0
o 10.1.1.3 [160/1] via 192.168.0.2, 00:00:13, FastEthernet1/1
C 10.1.1.1 is directly connected, Loopback0
C 192.168.0.0/24 is directly connected, Vlan101
C 192.168.1.0/24 is directly connected, Vlan100
ALL IS GOOD in the routing tables
Now I test the routing...
HUB(config-router)#do ping 10.1.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
I check SPOKE1 for a route back
SPOKE1#sh 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, su - IS-IS summary, 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 not set
10.0.0.0/32 is subnetted, 1 subnets
C 10.1.1.2 is directly connected, Loopback0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
NO DEFAULT ROUTE BACK by ODR
So i'm thinking it has something to do with using VLAN routing. I test it using a router interface on HUB...
UB(config)#no int vlan 100
HUB(config)#
*Mar 1 00:17:14.155: %LINK-5-CHANGED: Interface Vlan100, changed state to administratively down
*Mar 1 00:17:15.155: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan100, changed state to down
HUB(config)#int f0/0
HUB(config-if)#ip add 192.168.1.1 255.255.255.0
HUB(config-if)#no shut
HUB(config-if)#duplex full
HUB(config-if)#speed 100
HUB(config-if)#
*Mar 1 00:17:29.963: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Mar 1 00:17:30.963: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
I CHANGE THE CONNECTED INTERFACE CONNECTED FROM F1/0(HWIC PORT) to F0/0 (ROUTER PORT)
HUB(config-if)#do sh 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, su - IS-IS summary, 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 not set
10.0.0.0/32 is subnetted, 3 subnets
o 10.1.1.2 [160/1] via 192.168.1.2, 00:01:52, FastEthernet1/0
[160/1] via 192.168.1.2, 00:00:52, FastEthernet0/0
o 10.1.1.3 [160/1] via 192.168.0.2, 00:00:01, FastEthernet1/1
C 10.1.1.1 is directly connected, Loopback0
C 192.168.0.0/24 is directly connected, Vlan101
C 192.168.1.0/24 is directly connected, FastEthernet0/0
HUB(config-if)#do ping 10.1.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:
..!!!
Success rate is 60 percent (3/5), round-trip min/avg/max = 4/14/28 ms
SPOKE1#sh 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, su - IS-IS summary, 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 192.168.1.1 to network 0.0.0.0
10.0.0.0/32 is subnetted, 1 subnets
C 10.1.1.2 is directly connected, Loopback0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
o* 0.0.0.0/0 [160/1] via 192.168.1.1, 00:00:51, FastEthernet0/0
SPOKE1 now has a route back from ODR
meanwhile Spoke2 connected to a HWIC-ESW still has no ODR route back
SPOKE2#sh 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, su - IS-IS summary, 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 not set
10.0.0.0/32 is subnetted, 1 subnets
C 10.1.1.3 is directly connected, Loopback0
C 192.168.0.0/24 is directly connected, FastEthernet0/0
So my question is why is this happening?
Thank you.
