Hi Charles,
172.16.0.0/16 is the Class B Network that the two subnets belong
to.
In a routing protocol that does not support subnets often called a
Classful routing protocol the router will advertise the Class B address
instead of the subnets, but the local router can see the subnets and rout
PDU's effectively to each seperately.
The two subnets of the class are the actual REAL routes that the router
has learned.
A Classless routing protocol can advertise the subnets instead of the
Classful Network but it will still look the same on the local router, just
remote routers will see the subnets as well then.
Hope that helps,
Darren
On Wed, 10 Jan 2001, charles paver wrote:
> Hi. I am having problems understanding a simple routing table. For
> example, consider the following:
>
> 172.16.0.0/16 is subnetted, 2 subnets
>
> I 172.16.8.0 (etc....)
>
> What the heck is the 172.16.0.0 mean? Is that the final destination network
> where the pdu is going? And how about the 2 subnets? What does that MEAN?
> I understand subnetting, like how to do it, but its a lot different when you
> need to apply it! Also, I know "I" means Igrp, but how aboutg
> 172.16.8.0--is that the FINAL destination network? And regarding admin
> distance, metric, current info, -- that is pretty straightforward. I
> presume the via means, next hop? As in, next router, not next network,
> right? Thanks a lot!
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