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Author Vlsm
worrywarm

2004-02-25, 1:04 pm

A router lists three routes to subnets in network 10.0.0.0. Given that VLSM is in use -how many times does the 'sh ip route' command list mask/prefix info about routes in network 10.0.0.0
a.1
b.2
c.3
d.4
f.5
ans: 3

I don't quite get this question. Suppose we do not use VLSM, would it make a difference on the answer? What does it exactly mean??

Thank you for your help!

mikop

2004-02-25, 1:08 pm

each will have a different network prefix, so it is treated as 3 separate route instead of one route to a big fat 10/8

also readre your other post, I edited it a little
worrywarm

2004-02-25, 1:11 pm

so what you mean is without VLSM, it will do auto summarization, only 1 subnet/prefix is shown in the table??

THanks!
mikop

2004-02-25, 1:23 pm

yes, for classful routing protocol like rip, it will auto summarize at 10/8, ripv2 and eigrip you can turn it off

not very comfortable with the phrase
"without VLSM"

know vlsm, cidr, classful vs classless routing protocols etc...
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