From: Nick (seajay76@nate.com)
Date: Tue Jan 10 2006 - 19:39:23 GMT-3
Hi, all!!
I read about the "area filter-list" command in the Doc CD,
but can't understand how the 'out' keyword is used.
Here is what the documentation says;
area {area-id} filter-list prefix {prefix-list-name in | out}
no area {area-id} filter-list prefix {prefix-list-name in | out}
Usage Guidelines With this feature enabled in the !0in!1 direction, all type 3 LSAs originated by the ABR to this area, based
on information from all other areas, are filtered by the prefix-list. Type 3 LSAs that were originated as
a result of the area-range command in another area are treated like any other type 3 LSA that was
originated individually. Any prefix that does not match an entry in the prefix list is implicitly denied.
With this feature enabled in the !0out!1 direction, all type 3 LSAs advertised by the ABR, based on
information from this area to all other areas, are filtered by the prefix list. If the area-range command
has been configured for this area, type 3 LSAs that correspond to the area-range are sent to all other
areas, only if there is at least one prefix in the area range that matches an entry in the prefix list.
If all specific prefixes are denied by the prefix list, type 3 LSAs that correspond to the area-range
command will not be sent to any other area. Prefixes that are not permitted by the prefix list are
implicitly denied.
The blue lines.. So the prefix-list should indicate summary with the "in" keyword
and specific networks with the "out" keyword?
Does anyone know what this command is really about?
Regards,
Nick
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