From: Jim Ervin (eminopapa@xxxxxxxxx)
Date: Wed Mar 08 2000 - 13:04:51 GMT-3
If a route (i.e. summary route) isn't in the BGP table
then it won't be added to the IP routing table.
Pointing a route to null0 is a way to get an otherwise
unknown route into the BGP table. Then it can be
inserted into the routing table. Can't do that in the
lab, though, so forget about it.
OSPF authentication. If one interface in an area has
authentication enabled, then all interfaces in that
area need to have authentication enabled. They need
the same key number (but multiple keys may be
configured and switched at a predetermined time) and
password. Virtual links have a virtual interface in
Area0 (hint).
And yes, BGP and OSPF may both be on the lab.
Enjoy your cupcakes.
--- John Garrett <John.Garrett.B@bayer.com> wrote:
> If I don't get some mail from this list soon, I may
> have to join the OTHER
> groupstudy list just so I have some lunchtime
> reading. 200 messages a day for
> someone going through mailing list DTs is a fix.
> Heck, I have been reading
> everything I get from this list before the microwave
> is done!
>
> I have a few questions from things that I am working
> on that I would like to
> pose:
>
> I was wiping out my configs from a BGP session when
> I noticed that I had a
> route to Null0 in my router. Under what
> circumstances would you see this
> route?
>
> In OSPF, what is exactly the rule on authentication?
> Is it simply all
> interfaces attached to the individual network, as
> well as any router ospf area
> x auth commands in the area? Or does every interface
> in , say area 0, have to
> have the same passwords and authentication methods
> on ALL interfaces in area
> 0? I have built these & tried a few different
> methods, but it seems to work
> many times when I think it should be broken.
>
> What is the cisco(LAB) definition of a VPN?
> Everybody and their brother seems
> to have their own definition regarding tunnels,
> encryption, pptp, vpdn, leased
> line, etc.
>
> BTW, I hope I am not violating anything here, but I
> heard a rumour that both
> BGP AND OSPF will be on the lab. :-)
>
> These are some areas that I am working on - Anyone
> wish to discuss? I would
> like to at least get enough reading to make it
> through the Lean Quisine that
> the wife sends for lunch as well as the vending
> machine cupcakes that I follow
> it with.
>
> John Garrett
>
>
>
>
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