[j-nsp] JUNOS : prefix-list

Amos Rosenboim amos at oasis-tech.net
Thu Feb 7 09:36:38 EST 2008


Hi List,

This reminds me:
Is it possible to have different match type for each different line  
in the prefix-list (similar to the Cisco implementation)?

Amos

On Feb 7, 2008, at 2:33 PM, Samuel wrote:

> Hi Jonathan,
>
>> Regarding the default behavior in firewall filters, there is no way
>> you can have an 'exact' match, since all source addresses are /32s by
>> definition.  Therefore, the behavior of matching all addresses within
>> the prefix is the only reasonable behavior.
>>
> Yes it's right.
>> And, you can actually apply different match types to prefix lists in
>> routing policy now.  Use the 'prefix-list-filter' configuration
>> statement.
>>
>> For example:
>>
>> [edit policy-options policy-statement example term example]
>> lab at HongKong# set from prefix-list-filter internal-routes ?
>> Possible completions:
>>   exact                Exactly match the prefix length
>>   longer               Mask is greater than the prefix length
>>   orlonger             Mask is greater than or equal to the prefix  
>> length
>>
> Thanks for this tip!
>
> Regards,
> Samuel
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