Re: EIGRP summary address problem

Its amazing, after I typed out my response and sent it, I figured out
what I was missing:
R6:
router eigrp 100
 redistribute eigrp 28
end

BB3#show ip route
     172.16.0.0/24 is subnetted, 3 subnets
C 172.16.0.0 is directly connected, Loopback1
C 172.16.1.0 is directly connected, Loopback2
C 172.16.2.0 is directly connected, Loopback3
     28.0.0.0/16 is subnetted, 1 subnets
D 28.28.0.0 [90/284160] via 192.168.3.1, 00:00:12, Ethernet0
C 192.168.3.0/24 is directly connected, Ethernet0

regards Andy

Andy Reid wrote:
> Hi Steve/Darby,
>
> I am sure I am missing something really simple.
> I was expecting to see 28.28.0.0/16 in the routing table of BB3. Note
> that I was also experimenting with a floating summary route of 0.0.0.0
> (which was seen in the routing table of BB3 o.k. - BB3#show ip route ei
> D* 0.0.0.0/0 [90/284160] via 192.168.3.1, 00:00:10, Ethernet0)
>
> R6:
> interface GigabitEthernet0/0
> ip address 28.28.11.6 255.255.255.0
> duplex auto
> speed auto
> media-type rj45
> !
> interface GigabitEthernet0/1
> no ip address
> duplex auto
> speed auto
> media-type rj45
> !
> interface GigabitEthernet0/1.70
> encapsulation dot1Q 70
> ip address 192.168.3.1 255.255.255.0
> ip summary-address eigrp 100 28.28.0.0 255.255.0.0 5
> !
> router eigrp 28
> network 28.28.6.6 0.0.0.0
> network 28.28.11.0 0.0.0.255
> network 192.168.3.0
> no auto-summary
> eigrp router-id 28.28.6.6
> !
> router eigrp 100
> network 192.168.3.0
> no auto-summary
> end
>
>
> R6#show ip route
> Gateway of last resort is not set
> 172.16.0.0/24 is subnetted, 3 subnets
> D 172.16.0.0
> [90/156160] via 192.168.3.254, 01:29:03, GigabitEthernet0/1.70
> D 172.16.1.0
> [90/156160] via 192.168.3.254, 01:29:03, GigabitEthernet0/1.70
> D 172.16.2.0
> [90/156160] via 192.168.3.254, 01:29:03, GigabitEthernet0/1.70
> 28.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
> D 28.28.7.7/32 [90/156160] via 28.28.11.7, 03:06:59,
> GigabitEthernet0/0
> C 28.28.6.6/32 is directly connected, Loopback0
> D 28.28.4.4/32 [90/156160] via 28.28.11.4, 03:04:17,
> GigabitEthernet0/0
> D 28.28.3.3/32 [90/156160] via 28.28.11.3, 03:05:16,
> GigabitEthernet0/0
> C 28.28.11.0/24 is directly connected, GigabitEthernet0/0
> C 192.168.2.0/24 is directly connected, GigabitEthernet0/1.50
> C 192.168.3.0/24 is directly connected, GigabitEthernet0/1.70
>
>
> BB3:
> interface Loopback1
> ip address 172.16.0.1 255.255.255.0
> !
> interface Loopback2
> ip address 172.16.1.1 255.255.255.0
> !
> interface Loopback3
> ip address 172.16.2.1 255.255.255.0
> !
> interface Ethernet0
> ip address 192.168.3.254 255.255.255.0
> !
> router eigrp 100
> network 192.168.3.0
> network 0.0.0.0
> no auto-summary
> end
>
> BB3#show ip route
> Gateway of last resort is not set
> 172.16.0.0/24 is subnetted, 3 subnets
> C 172.16.0.0 is directly connected, Loopback1
> C 172.16.1.0 is directly connected, Loopback2
> C 172.16.2.0 is directly connected, Loopback3
> C 192.168.3.0/24 is directly connected, Ethernet0
>
> What is preventing the summary aggregate address from being sent?
>
> regards Andy
>
> Steve Lyons wrote:
>
>> Andy,
>> Send your configuration to the group and the sh ip route output. I
>> would like to see what is configured.
>>
>> Steve Lyons
>>
>> On Sun, Sep 13, 2009 at 11:13 AM, Andy Reid <ccie_at_reid.it
>> <mailto:ccie_at_reid.it>> wrote:
>>
>> Hi all,
>>
>> I am experiencing an unexpected problem when configuring an EIGRP
>> summary address on the interface of R6 which is connected to BB3.
>>
>> The problem is that any summary address except for 0.0.0.0 0.0.0.0
>> is not sent by R6 to BB3. I have a couple of /32 loopback
>> addresses in the routing table of R6 and I am trying to advertise
>> them as a summary address /16. I have even tried adding a default
>> route for the /16 network to null0 on R6, yet it is still not
>> advertised to BB3.
>>
>> Are there any caveats to using a summary-address on an interface
>> for EIGRP? and why does a default summary route work when all
>> others don't?
>>
>> Yours frustrated, Andy
>>
>>
>> Blogs and organic groups at http://www.ccie.net <http://www.ccie.net/>
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Sun Sep 13 2009 - 23:37:43 ART