From: josh@xxxxxxxxxxx
Date: Wed Mar 08 2000 - 12:56:26 GMT-3
When using BGP, a route to Null0 would normally be used when you want your
BGP speaker to advertise a route. BGP will not advertise a network that it
does not have in it's routing table. Therefore, you can use null0 to make
BGP think it really has a route.
I haven't had the honors of taking the lab, but my gut feeling is there will
be a great amount of BGP and OSPF.
Josh
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
John Garrett
Sent: Wednesday, March 08, 2000 6:30 AM
To: - *ccielab@groupstudy.com
Subject: KickStart
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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