Confused on Routing Tables

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Confused on Routing Tables

Postby mmccann » Thu Sep 12, 2013 9:03 pm

Very nice site. Thanks for the very good study guides.
Going through the labs and am confused by the Best Route Determination Exercises.
Question #2 - Ip = 77.123.14.107. Why isn't this route even a possibility?
O 77.123.14.100/30 [110/49] via 192.168.3.1, 00:00:01, Ethernet2
I thought the process was to look for best prefix, then metric (for same protocols) then AD.
This route has the same prefix as the other two /30s, and has a better AD. What did I miss?

thanks
Mike
mmccann
 
Posts: 2
Joined: Thu Sep 12, 2013 8:53 pm

Re: Confused on Routing Tables

Postby mmccann » Thu Sep 12, 2013 9:18 pm

Ahh, just realized what I missed. 77.123.14.100/30 is not on the same net as 77.123.14.107. :oops:

But, now I have another question -
For question #3 - there is a statement in the route table:
158.80.0.0/16 is variably subnetted, 10 subnets, 6 masks
why do some subnetted routes appear under this statement with net addresses of 158.79.x.x and 158.76.x.x? These are on another major network aren't they?

thanks
Mike
mmccann
 
Posts: 2
Joined: Thu Sep 12, 2013 8:53 pm


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