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quatreduros
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Difference between PREFIX-LIST and ACCESS-LIST

Sat Jun 30, 2012 4:03 pm

I am studying the atributies of BGP.

Then when i want to change Local - preference and AS-PATH we will used the PREFIX-LIST. But if we want to change the MED (metric) will used ACCESS-LIST.

I have tryed to change the local-preference atributte with ACCESS-LIST but is impossible. The what is the difference between PREFIX-LIST and ACCESS-LIST?

Thanks,

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mellowd
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Re: Difference between PREFIX-LIST and ACCESS-LIST

Sat Jun 30, 2012 4:18 pm


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Re: Difference between PREFIX-LIST and ACCESS-LIST

Sun Jul 01, 2012 1:11 am

mellowd wrote:http://mellowd.co.uk/ccie/?p=447


Nice post mellow.

quatreduros
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Re: Difference between PREFIX-LIST and ACCESS-LIST

Sun Jul 01, 2012 8:02 am

Thanks,

The document tell that in the ACL we needs a line to each network in prefix-list we can to restrict in only line wuth ge, le.

But i think that in ACL also we can to permit various networks:

access-list permit 192.168.2.0 0.0.255.255 //here will permitted very networks

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mellowd
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Re: Difference between PREFIX-LIST and ACCESS-LIST

Sun Jul 01, 2012 8:05 am

that ACL will permit anything from 192.168.1.2/16 all the way to 192.168.255.255/32 including all bit boundys inbetween.

The prefix-list gives you more options when doing certain things

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