08-27-2009 02:16 AM - edited 03-06-2019 07:27 AM
Hi!
We have two simple summarization config.
interface 0/0
ip summary-address 20 10.42.0.0 255.255.0.0 5
interface 0/1
ip summary-address 100 10.42.0.0 255.255.0.0 5
The summarization is working well.
Our problem is the following.
The eigrp advertises the summary route distance as internal(90) via 0/0 and external(170) via 0/1.
The show ip route shows
Lajos_CORE_A#sho ip route 10.42.0.0
Routing entry for 10.42.0.0/16
Known via "eigrp 20", distance 5, metric 3072, type internal
Redistributing via eigrp 100, eigrp 20
Advertised by eigrp 100
Routing Descriptor Blocks:
* directly connected, via Null0
Route metric is 3072, traffic share count is 1
Total delay is 20 microseconds, minimum bandwidth is 1000000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
--------------------------------
How can i change or control which direction will be the internal or external or internal only via both directions.
The 2 AS is needed in this issue.
Thanks
08-27-2009 02:39 AM
You are redistributing on AS into another, You can change the redistributed metric from 170 to any number you want - but this is ONLY local to the router you change it on, it does not get advertised.
eigrp #
distance # <
08-27-2009 02:49 AM
Hi!
Thanks. It is right.
But Why the AS 20 is the internal ?
Because this was configured first time? HoW can i control the advertisement distance ?
Thanks,
08-27-2009 03:01 AM
This is because you are redistributing 100 into 20 - when you look at a device configured in the AS 20 - 100 will be external as it is not in the same AS.
08-27-2009 05:31 AM
Hi!
I know the redistribution rules.
I do not use the redistributed command. The router distributes automatically from 20 - 100.
The question.
Why the AS 20 is default? How can i change the internal/external status (without route policy-map)?
Thanks
I would like to unterstand how the route select the default AS (internal) for aggregate routes if there are many AS. Is the first the default ?
08-27-2009 06:07 AM
ok - here is the thing, the last time I checked the only protocol that automatically redistributes dynamic routing protocols is IGRP into EIGRP and vice versa.
08-27-2009 06:25 AM
Hi!
I very thank your answers!
Unfortunetly we do not unterstand each other. May be my english is not properly.
My quetion once again.
Why the AS 20 is internal for aggregate route? I would like the change the summary-aggregate route eigrp type in the advertisements . The type will be internal In the AS 100 and external in the AS 20.
How can i do this ?
Thank once again!
08-27-2009 06:28 AM
Post your config (remove sensitive information) for the EIGRP/Interface config for review.
08-27-2009 07:21 AM
Karoly says he is not using the redistribute command. I agree with Andrew that in my experience EIGRP does not redistribute automatically. The best way to resolve this is to be able to see the config.
It might also be helpful to see the output of show ip protocol.
HTH
Rick
08-27-2009 08:14 AM
hi!
I remove the one of 10.42.0.0 summary-route from AS 100 because i had to install now.
Actually the show ip protocols
Lajos_CORE_A#sho ip protocols
*** IP Routing is NSF aware ***
Routing Protocol is "eigrp 100 100"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Default redistribution metric is 100000 10 255 255 150
Redistributing: eigrp 100 100, eigrp 20 20
EIGRP NSF-aware route hold timer is 240s
EIGRP NSF disabled
NSF signal timer is 20s
NSF converge timer is 120s
Automatic network summarization is not in effect
Address Summarization:
172.0.0.0/8 for GigabitEthernet3/1
Summarizing with metric 3072
10.0.0.0/8 for GigabitEthernet3/1
Summarizing with metric 3072
9.0.0.0/8 for GigabitEthernet3/1
Summarizing with metric 3072
Maximum path: 4
Routing for Networks:
192.168.153.0
Routing Information Sources:
Gateway Distance Last Update
(this router) 90 01:05:16
192.168.153.253 90 00:49:42
192.168.153.198 90 00:49:42
192.168.153.206 90 00:49:42
192.168.153.187 90 00:49:42
192.168.153.186 90 00:49:42
192.168.153.58 90 00:49:42
192.168.153.46 90 00:49:42
192.168.153.6 90 00:49:42
192.168.153.10 90 00:49:42
Distance: internal 90 external 170
Routing Protocol is "eigrp 20 20"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 100 100, eigrp 20 20
EIGRP NSF-aware route hold timer is 240s
EIGRP NSF disabled
NSF signal timer is 20s
NSF converge timer is 120s
Automatic network summarization is not in effect
Address Summarization:
10.42.0.0/16 for GigabitEthernet3/2, GigabitEthernet3/3, GigabitEthernet3/4
Summarizing with metric 3072
Maximum path: 4
Routing for Networks:
192.168.150.0
Routing Information Sources:
Gateway Distance Last Update
(this router) 90 13w3d
192.168.150.166 90 00:49:45
192.168.150.162 90 00:49:45
192.168.150.158 90 00:49:45
Distance: internal 90 external 170
08-27-2009 09:10 AM
Karoly
Thank you for the output of show ip protocol. It clearly shows that there is redistribution between eigrp 100 and eigrp 20. The next step is that we need to see the config (at a minimum the complete config of both eigrp processes).
HTH
Rick
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