From: san (san.study@gmail.com)
Date: Fri Apr 07 2006 - 01:55:38 GMT-3
Hi ,
I have a question on "why does spoke to spoke traffic is redirected by HUB
?" or Why does spoke to spoke traffic is going to Hubs ip address ?
Topology:
-------------
R3(spoke)---------R5(hub)-----------R4(spoke)
problem:
------------
When i ping from R4 183.1.0.4 to R3 183.1.0.3.....I see the below message
at R5. But sh ip route on R4 shows nexthop as 183.1.0.3...then why does
packet go to 183.1.0.5 ?
Rack1R5#
*Mar 8 22:02:05.146: ICMP: redirect sent to 183.1.0.4 for dest 183.1.0.3,
use gw 183.1.0.3
Configs:
-----------
Rack1R4#sir
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
183.1.0.0/24 is subnetted, 3 subnets
C 183.1.46.0 is directly connected, FastEthernet0/1
C 183.1.45.0 is directly connected, FastEthernet0/0
C 183.1.0.0 is directly connected, Serial0/0
150.1.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 150.1.4.0/24 is directly connected, Loopback0
O 150.1.5.5/32 [110/65] via 183.1.0.5, 00:03:00, Serial0/0
O 150.1.3.3/32 [110/65] via 183.1.0.3, 00:03:00, Serial0/0
Rack1R4#
Rack1R4#
Rack1R4#si serial 0/0
Building configuration...
Current configuration : 274 bytes
!
interface Serial0/0
ip address 183.1.0.4 255.255.255.0
encapsulation frame-relay
ip ospf network broadcast
ip ospf priority 0
no dce-terminal-timing-enable
frame-relay map ip 183.1.0.3 405
frame-relay map ip 183.1.0.5 405 broadcast
no frame-relay inverse-arp
end
Rack1R4#br ospf
router ospf 1
router-id 150.1.4.4
log-adjacency-changes
network 150.1.4.4 0.0.0.0 area 0
network 183.1.0.4 0.0.0.0 area 0
!
!
Rack1R5#
*Mar 8 22:02:05.146: ICMP: redirect sent to 183.1.0.4 for dest 183.1.0.3,
use gw 183.1.0.3
Rack1R5#sir
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
183.1.0.0/24 is subnetted, 3 subnets
C 183.1.58.0 is directly connected, FastEthernet0/0
C 183.1.45.0 is directly connected, FastEthernet0/1
C 183.1.0.0 is directly connected, Serial0/0
150.1.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 150.1.5.0/24 is directly connected, Loopback0
O 150.1.4.4/32 [110/65] via 183.1.0.4, 00:04:22, Serial0/0
O 150.1.3.3/32 [110/65] via 183.1.0.3, 00:04:22, Serial0/0
Rack1R5#
Rack1R5#si serial 0/0
Building configuration...
Current configuration : 295 bytes
!
interface Serial0/0
ip address 183.1.0.5 255.255.255.0
encapsulation frame-relay
ip ospf network non-broadcast
ip ospf hello-interval 10
no dce-terminal-timing-enable
frame-relay map ip 183.1.0.3 513 broadcast
frame-relay map ip 183.1.0.4 504 broadcast
no frame-relay inverse-arp
end
Rack1R5#br ospf
router ospf 1
router-id 150.1.5.5
log-adjacency-changes
network 150.1.5.5 0.0.0.0 area 0
network 183.1.0.5 0.0.0.0 area 0
neighbor 183.1.0.3
neighbor 183.1.0.4
!
R3:
===
Rack1R3#sir
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
C 204.12.1.0/24 is directly connected, FastEthernet0/0
183.1.0.0/24 is subnetted, 2 subnets
C 183.1.0.0 is directly connected, Serial1/1.100
C 183.1.123.0 is directly connected, Serial1/0
150.1.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 150.1.3.0/24 is directly connected, Loopback0
O 150.1.5.5/32 [110/782] via 183.1.0.5, 00:00:09, Serial1/1.100
O 150.1.4.4/32 [110/782] via 183.1.0.4, 00:00:09, Serial1/1.100
Rack1R3#
Rack1R3#
Rack1R3#
Rack1R3#
Rack1R3#
Rack1R3#
Rack1R3#
Rack1R3#
Rack1R3#
Rack1R3#
Rack1R3#si serial 1/1.100
Building configuration...
Current configuration : 144 bytes
!
interface Serial1/1.100 point-to-point
ip address 183.1.0.3 255.255.255.0
ip ospf network broadcast
frame-relay interface-dlci 315
end
Rack1R3#br ospf
router ospf 1
router-id 150.1.3.3
log-adjacency-changes
network 150.1.3.3 0.0.0.0 area 0
network 183.1.0.3 0.0.0.0 area 0
!
!
-- Thanks & Rgds SAN
This archive was generated by hypermail 2.1.4 : Mon May 01 2006 - 11:41:56 GMT-3