Thanks Marc
On R3, i have captured the following,
Rack1R3(config-router)#do sh ip route 150.1.6.6
Routing entry for 150.1.6.0/24
Known via "bgp 100", distance 200, metric 0, type internal
Redistributing via eigrp 100
Advertised by eigrp 100 metric 1500 1 255 1 1500
Last update from 155.1.146.6 00:18:27 ago
Routing Descriptor Blocks:
* 155.1.146.6, from 155.1.13.1, 00:18:27 ago
Route metric is 0, traffic share count is 1
AS Hops 0
MPLS label: none
Rack1R3(config-router)#
Rack1R3(config-router)#do sh ip cef
Prefix Next Hop Interface
0.0.0.0/0 no route
0.0.0.0/8 drop
0.0.0.0/32 receive
127.0.0.0/8 drop
150.1.0.0/16 155.1.37.7 Ethernet0/0
150.1.3.0/24 attached Loopback0
150.1.3.0/32 receive Loopback0
150.1.3.3/32 receive Loopback0
150.1.3.255/32 receive Loopback0
150.1.6.0/24 155.1.37.7 Ethernet0/0
As per RIB, the next hop shows the 155.1.13.1, but in CEF, 155.1.37.7 as
next hop, so i think i need to clear the cef table
Please correct if i am wrong
--Venkee
On 2 February 2012 18:19, marc abel <[email protected]> wrote:
> You need to look at the route on the router 155.1.37.7. It is pointing
> back to R3 for some reason.
>
> On Thu, Feb 2, 2012 at 12:54 AM, Venkee <[email protected]> wrote:
>
>> Guys,
>>
>> While making the setup, i noticed the routing loop, may i know the reason
>> why ? please help
>>
>> Rack1R5#trace 150.1.6.6
>>
>> Type escape sequence to abort.
>> Tracing the route to 150.1.6.6
>>
>> 1 155.1.0.3 16 msec 20 msec 20 msec
>> 2 155.1.37.7 20 msec 20 msec 20 msec
>> 3 155.1.37.3 20 msec 20 msec 20 msec
>> 4 155.1.37.7 20 msec 24 msec 20 msec
>> 5 155.1.37.3 20 msec 20 msec 16 msec
>> 6 155.1.37.7 20 msec 20 msec 20 msec
>> 7 155.1.37.3 20 msec 20 msec 20 msec
>> 8 155.1.37.7 20 msec 20 msec 20 msec
>> 9 155.1.37.3 20 msec 20 msec 20 msec
>> 10 155.1.37.7 20 msec 20 msec 20 msec
>> 11 155.1.37.3 16 msec 20 msec 16 msec
>> 12 155.1.37.7 20 msec 20 msec 20 msec
>> 13 155.1.37.3 20 msec 20 msec 20 msec
>> 14 155.1.37.7 20 msec 24 msec 20 msec
>> 15 155.1.37.3 16 msec 20 msec 20 msec
>> 16 155.1.37.7 20 msec 20 msec 20 msec
>> 17 155.1.37.3 20 msec 20 msec 20 msec
>> 18 155.1.37.7 20 msec 20 msec 20 msec
>> 19 155.1.37.3 20 msec 16 msec 20 msec
>> 20 155.1.37.7 20 msec 20 msec 20 msec
>>
>> Rack1R3(config-router)#do sh ip route 150.1.6.6
>> Routing entry for 150.1.6.0/24
>> Known via "bgp 100", distance 200, metric 0, type internal
>> Redistributing via eigrp 100
>> Advertised by eigrp 100 metric 1500 1 255 1 1500
>> Last update from 155.1.146.6 00:18:27 ago
>> Routing Descriptor Blocks:
>> * 155.1.146.6, from 155.1.13.1, 00:18:27 ago
>> Route metric is 0, traffic share count is 1
>> AS Hops 0
>> MPLS label: none
>> Rack1R3(config-router)#
>> Rack1R3(config-router)#do sh ip cef
>> Prefix Next Hop Interface
>> 0.0.0.0/0 no route
>> 0.0.0.0/8 drop
>> 0.0.0.0/32 receive
>> 127.0.0.0/8 drop
>> 150.1.0.0/16 155.1.37.7 Ethernet0/0
>> 150.1.3.0/24 attached Loopback0
>> 150.1.3.0/32 receive Loopback0
>> 150.1.3.3/32 receive Loopback0
>> 150.1.3.255/32 receive Loopback0
>> 150.1.6.0/24 155.1.37.7 Ethernet0/0
>> 155.1.0.0/16 155.1.37.7 Ethernet0/0
>> 155.1.0.0/24 attached Serial1/0.1
>> 155.1.0.0/32 receive Serial1/0.1
>> 155.1.0.3/32 receive Serial1/0.1
>> 155.1.0.255/32 receive Serial1/0.1
>> 155.1.5.0/24 155.1.0.5 Serial1/0.1
>> 155.1.7.0/24 155.1.37.7 Ethernet0/0
>> 155.1.8.0/24 155.1.0.5 Serial1/0.1
>> 155.1.9.0/24 155.1.37.7 Ethernet0/0
>> 155.1.10.0/24 155.1.0.5 Serial1/0.1
>> 155.1.13.0/24 attached Serial1/2
>> 155.1.13.0/32 receive Serial1/2
>>
>> Rack1R3(config-router)#do sh ip cef 150.1.6.0
>> 150.1.6.0/24
>> nexthop 155.1.37.7 Ethernet0/0
>>
>> do i need to clear the
>>
>> Regards,
>> Venkee
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>
_______________________________________________
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www.ipexpert.com
Are you a CCNP or CCIE and looking for a job? Check out
www.PlatinumPlacement.com
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