From: Paul Cosgrove (paul.cosgrove@heanet.ie)
Date: Sun Jan 13 2008 - 21:58:23 ARST
The command does not require a default route to be in the routing table
and so there is no need to have the 'always' option. NSSA areas do not
have a 0.0.0.0/0 route injected from area 0 by default, but this command
can be used to inject one on an ABR.
Except for the directly connected interface in area 0, the command has
no dependency on other routes. If the only area 0 interface fails then
the router ceases to be an ABR and the default route will be withdrawn.
Paul.
Cielieska Nathan wrote:
> All,
>
> I was doing some labs today and could not find a place to do a default
> route into OSPF (NSSA area) with the always option.
>
> NSSA ASBR
> area 1 nssa default-information-originate has no "always" keyword
>
> STANDARD ASBR
> default-information originate always
>
> Is it a correct assumption that only Type-5 default routes can be kept
> in the routing table in the instance of a flapping default route on an
> "upstream" router but Type-7's (or routers in an NSSA) cannot keep a
> default route in case of a flapping default route?
>
> Regards,
> Nate
>
> _______________________________________________________________________
> Subscription information may be found
> at:http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Fri Feb 01 2008 - 10:37:59 ARST