From: Victor Cappuccio (cvictor@protokolgroup.com)
Date: Fri Apr 07 2006 - 02:20:55 GMT-3
Hello San
*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
This message indicates that R5 is in the same subnet than R3 / R4
So hi is telling Router 4 to send traffic directly to R3
Double check your serial 0/0 on R3, I think that you should make the
priority also to 0, because if router3 gets elected as the DR you will
have a problem there
Why you are using a non-broadcast ospf network type on R5 interface to
the hubs, and then have a broadcast parameter in the frame-relay L3-L2
mapping?
HTH
Victor
san escribis:
> 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
>
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