RE: Default OSPF Redistribution Behavior? Which OSPF External types are not the default?

From: Anthony Pace (anthonypace@xxxxxxxxxxx)
Date: Mon Jul 22 2002 - 15:05:09 GMT-3


   
Question:

So with the exception of BGP, all other protocoles would suck in all
the OSPF routes without the stating of specifics? All those options are
just to let you "tune" which kinds of external routes go into BGP. Why
is "internal" an option? Is is because if you do nothing, then only
internal get redistributed but if you name external then you turn off
the "auto" redistributing of "internal"???

Anthony Pace

On Mon, 22 Jul 2002 22:57:36 +1000, "yakout esmat"
<yesmat@iprimus.com.au> said:
> From practice and experience, when you redistribute OSPF into any other
> IGP,
> you don't need to specify Internal and/or external, it will by default
> redistribute both.
>
> Redistributing OSPF into BGP, you will need to specify match internal
> or
> external or both. At least that's what the doco says, again from
> experience,
> it works without specifying any with BGP. Go figure....:-)
>
> Yakout
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Michael Snyder
> Sent: Monday, July 22, 2002 6:00 AM
> To: ccielab@groupstudy.com
> Subject: Default OSPF Redistribution Behavior? Which OSPF External
> types
> are not the default?
>
>
> I normally don't use the match command when I redistribute OSPF into
> another protocol. Today when I tried it, I expected to see it
> disappear
> like most default ios commands. Instead the ios listed five parameters
> when I used it. (I had only picked three)
>
> Router eigrp 1
>
> redistribute ospf 1 metric 500 10 255 1 1500 match internal external 1
> external 2 nssa-external 1 nssa-external 2 route-map deny3set1
>
>
> Which leads to the an important question;
>
> 1) Which ospf route types don't get redistributed without an explicit
> match command?
>
> 2) Do different protocols need different explicit match commands?
>
> I remember reading something about BGP not accepting external routes
> during an incoming route redistribution.
>
> Thanks in Advance,
>
> Michael



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