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New Member

BGP Regular Expressions

Can anyone explain what the following reg exp would do literally?:

ip as-path access-list 1 permit ^4_[0-9]*$

Thanks.

/rls

2 REPLIES
New Member

Re: BGP Regular Expressions

that means

as path sud contain 4 and one another AS

so exampls

4 9

4 99

4 999

4 8

4 88

New Member

Re: BGP Regular Expressions

that means

it sud come from 4

and one another AS

example

4 8

4 88

4 888

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