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ip prefix-list and same sequence number

Posted on 2006-06-12
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Last Modified: 2006-11-18
If I have these access prefix lists have been configured under same Router, can I have these sequence numbers (number 5 was configured with two different prefix-list names) in the configuration below ? :

ip prefix-list Peter seq 5 permit 205.13.2.3/32
ip prefix-list John seq 5 permit 164.2.7.0/24
ip prefix-list John seq 15 permit 151.2.7.0/24



I feel the configuration should be like below :

ip prefix-list Peter seq 5 permit 205.13.2.3/32
ip prefix-list John seq 15 permit 164.2.7.0/24
ip prefix-list John seq 15 permit 151.2.7.0/24



or as alternate solution it can be like below as well:

ip prefix-list Peter seq 5 permit 205.13.2.3/32
ip prefix-list John seq 10 permit 164.2.7.0/24
ip prefix-list John seq 15 permit 151.2.7.0/24



Any comment to my thought ?















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Question by:zillah
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4 Comments
 
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Expert Comment

by:lrmoore
ID: 16893345
The first one.
Peter is one list by itself and has default seq 5
John is a separate list and would start at seq 5, next entry seq 10, next entry seq 15, etc.

You do not want to put the same sequence number to 2 lines of the same list as your middle example.
There is no value in starting the sequence # in the 2nd list at 10, but neither is there harm.

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Author Comment

by:zillah
ID: 16900104
((You do not want to put the same sequence number to 2 lines of the same list as your middle example)).
I should have tried this on a router, but it was not handy at the time of posting this thread,,,,when I tried on a router the result was this :

Router(config)#ip prefix-list Peter seq 5 permit 205.13.2.3/32
Router(config)#ip prefix-list John seq 15 permit 164.2.7.0/24
Router(config)#ip prefix-list John seq 15 permit 151.2.7.0/24
%Insertion failed - seq # exists with different policy: 15



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Accepted Solution

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lrmoore earned 125 total points
ID: 17388671
>Any comment to my thought ?
I made a comment. There was no real question. The author's post simply confirmed my statement.
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