From: Victor Cappuccio (cvictor@protokolgroup.com)
Date: Mon Aug 28 2006 - 01:35:23 ART
Hello Sabrina / Angelo / Plukkie, to be honest, I have not found any good
reference that explicitly says that EIGRP does not support the Change of the
AD for a particulars External Router; but I'm pretty sure that it must be
written somewhere, it is just a matter of time.
But I found this that could be of help in the researching (and searching
process) of Why EIGRP does not change the Specifics External routes to a
configured AD Value (as our assumption here, maybe it does and we are just
completely wrong) is that:
1.- This Command is specific to EIGRP.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/np1_r
/1rprt1/1reigrp.htm#wp1017590
The distance eigrp command sets the administrative distance of **ALL** EIGRP
internal routes to 80 and **ALL** EIGRP external routes to 130.
2.- This Command is specific to General IP Routing
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hirp_r
/rte_pih.htm#wp1122260
the meaning of this command is that it would change the AD of the Routes
owned (internal) to the Routing Process. .- Just like Angelo Scenario
Also, Playing around also with ip summa eigrp X X.x.X.x M.M.M.M (AD), you
can no do nothing else than this
R2#show ip route 10.0.0.0 255.0.0.0 long | be Gate
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
D 10.7.0.0/16 is a summary, 00:00:12, Null0
O 10.7.2.0/24 [110/65] via 133.1.24.4, 00:09:55, Serial0/0
Rack3R2#show run int f0/0
Building configuration...
Current configuration : 407 bytes
!
interface FastEthernet0/0
ip address 133.1.26.2 255.255.255.0
ip summary-address eigrp 100 10.7.0.0 255.255.0.0 5
------------------
OT: if you look at R2 routing Table it would generate a Null0 to that
aggregate, but If you change the ip summary-address eigrp 100 10.7.0.0
255.255.0.0 255 that Null0 route in the RT disappears
------------------
BB1-TS#6
[Resuming connection 6 to r6 ... ]
*Aug 28
R6#show ip route 10.0.0.0 255.0.0.0 long | be Gate
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
D 10.7.0.0/16 [90/2560002816] via 133.1.26.2, 00:00:34,
FastEthernet0/0.51
D EX 10.7.2.0/24
[170/2560002816] via 3.3.26.2, 00:00:34, FastEthernet0/0.51
R6#
See that the Aggregate route now belongs to internal EIGRP, and that we can
easily then change the AD to whatever AD we want
R6#conf te
Enter configuration commands, one per line. End with CNTL/Z.
R6(config)#do show ip access-list
R6(config)#access-list 12 permit 10.7.0.0 0.0.255.255
R6(config)#router eigrp 100
R6(config-router)#distance 111 3.3.26.2 0.0.0.0 12
Now we have the AD Changed :D
Rack3R6#show ip route 10.0.0.0 255.0.0.0 long | be Gate
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
D 10.7.0.0/16
[111/2560002816] via 3.3.26.2, 00:01:12, FastEthernet0/0.51
D EX 10.7.2.0/24
[170/2560002816] via 3.3.26.2, 00:01:12, FastEthernet0/0.51
Other interesting thing here to note is that when you see the Topology Table
of a Particular Route, the information is very granular, so I would not be
surprised if we can change the AD of particular routes
R6#show ip eigrp topology 10.7.2.0 255.255.255.0
IP-EIGRP (AS 100): Topology entry for 10.7.2.0/24
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 2560002816
Routing Descriptor Blocks:
3.3.26.2 (FastEthernet0/0.51), from 3.3.26.2, Send flag is 0x0
Composite metric is (2560002816/2560000256), Route is External
Vector metric:
Minimum bandwidth is 1 Kbit
Total delay is 110 microseconds
Reliability is 1/255
Load is 1/255
Minimum MTU is 1
Hop count is 1
External data:
Originating router is 3.3.2.2
AS number of route is 1 << *****
External protocol is OSPF, external metric is 65 << *****
Administrator tag is 2110 (0x0000083E) << *****
<< ***** The Protocol is so verbose for certain things that I would be
surprise if we can just not change the Administrative value ONLY for this
route, but yet I do not know how to do it, Still Searching for that...>>>
Now I'm very interested to know the particular scenario that you guys are
trying to accomplish, so please let us know.
Thanks and please sorry my terrible English, I have 4 days with a flu that
is annoying me
Victor.-
-----Mensaje original-----
De: nobody@groupstudy.com [mailto:nobody@groupstudy.com] En nombre de
sabrina pittarel
Enviado el: Domingo, 27 de Agosto de 2006 10:44 p.m.
Para: Angelo De Guzman; ccielab@groupstudy.com; Plukkie
Asunto: Re: Re(2): DISTANCE Command
I didn't have any doubt ;-) It's one of these things that one simply knows.
Unfortunately I don't have any link for that. I remember trying to look it
up on univerCD but there was nothing there.
I've also looked on CCO, but no luck. I've to add here, though, that I'm a
very bad CCO browser.
I'm sure if Victor picks up this thread it'll pull a link out of his
sleeve.
Sabrina
----- Original Message ----
From: Angelo De Guzman <a.deguzman@wesolv.ph.fujitsu.com>
To: ccielab@groupstudy.com; Plukkie <plukkie@gmail.com>
Sent: Sunday, August 27, 2006 7:00:00 PM
Subject: Re(2): DISTANCE Command
Hi,
I changed my ACL and still does not work.
Sabrina,
I think you are right. Thanks. Do you have a document for this?
Regards,
Angelo
Plukkie (8/27/06 3:36 PM):
>
>Try to change your mask in acl 1 to 0.0.3.255.
>
>gr
>
>
>On 27 Aug 2006 13:45:00 +0800, Angelo De Guzman <
>a.deguzman@wesolv.ph.fujitsu.com> wrote:
>>
>> Hi,
>> Anyone had an issue with the distance command under EIGRP. I wanted to
set
>> an
>> AD of 99 to routes I am receiving from my neighbor 172.30.200.7. I can't
>> make
>> this work???
>>
>> IOS version: System image file is "flash:c3640-js-mz.124-5.bin"
>>
>> R5#sh ip eigrp neighbor
>> IP-EIGRP neighbors for process 1
>> H Address Interface Hold Uptime SRTT
>> RTO Q Seq
>> (sec) (ms) Cnt
>> Num
>> 0 172.30.200.6 Et0/0 14 00:00:02 4
>> 200 0 123
>> 1 172.30.200.7 Et0/0 14 02:49:42 8
>> 200 1 53
>>
>> !
>> access-list 1 permit 10.7.0.0 0.0.3.0
>> !
>> router eigrp 1
>> redistribute connected route-map connect2eigrp
>> redistribute ospf 1 match internal external 1 external 2
>> passive-interface default
>> no passive-interface Ethernet0/0
>> network 172.30.200.0 0.0.0.127
>> default-metric 1000 1000 255 100 1500
>> distance 99 172.30.200.7 0.0.0.0 1
>> no auto-summary
>>
>> For some reason the AD does not change.
>> D EX 10.7.1.0/24 [170/2841600] via 172.30.200.7, 00:01:51, Ethernet0/0
>> D EX 10.7.2.0/24 [170/2841600] via 172.30.200.7, 00:01:51, Ethernet0/0
>> Thanks,
>> Angelo
>>
>>
>>
>>
>>
>> ***********************
>> No virus was detected in the attachment no filename
>>
>> Your mail has been scanned by InterScan MSS.
>> ***********-***********
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>
>
>***********************
>No virus was detected in the attachment no filename
>No virus was detected in the attachment no filename
>
>Your mail has been scanned by InterScan MSS.
>***********-***********
>
***********************
No virus was detected in the attachment no filename
Your mail has been scanned by InterScan MSS.
***********-***********
This archive was generated by hypermail 2.1.4 : Fri Sep 01 2006 - 15:41:58 ART