gjgowey@tmo.blackberry.net wrote:
With companies one of the first questions that I think some people forget to
ask is if a routing protocol is really necessary for the network topology
that they have. Routing protocols are only really useful for when you have
multiple paths out of your particular subnet. If you only have one path out
then using any routing protocol is needless.
That may seem like common sense, but I used to work for one large employer
who, because the network admins weren't too bright about routing, used ospf
on every router they had to link all their buildings. Even though each
router only had a single T1 connecting it directly to the core router at the
noc and that router had a direct 10/100 link to the upstream providers
router. I'd tell more, but I think some people here would think I was
bullshitting.
Geoff
Even in a situation as you describe, using a routing protocol is not
entirely without benefit. For instance, suppose a miscreant host is
spewing spam to the internal network, and the internet. We could log
into the router closest to the host and put a host-level null route in
place, thus confining the hosts miscreant activity to its broadcast
domain. If a routing protocol (OSPF, even RIP) is in place, the routing
update can be made to a central router, which will then propagate it -
which would likely make such activities easier to script, and manage.
--
Jim Mellander
Incident Response Manager
Computer Protection Program
Lawrence Berkeley National Laboratory
(510) 486-7204
The reason you are having computer problems is:
Did you pay the new Support Fee?
