Solved: VLSM question

zouzounos · ‎02-06-2010

hello

i would like to ask if i can use the 10.2.0.0/16 and the 10.2.130.0/24 subnets in the same router using only static routes. Im not so sure because the second network seems to be subnet from the first network which is subnet from the 10.0.0.0 network .

thanks

Giuseppe Larosa · ‎02-06-2010

Hello Cooman,

if we speak of static routes, this is possible.

Example:

ip route 10.2.130.0 255.255.255.0 ser0/0

ip route 10.2.0.0 255.255.0.0 ser0/1

a packet with IP destination = 10.2.130.25 will be sent out ser0/0

a packet with IP destination = 10.2..131.25 will be sent out ser0/1

Most specific route is used first this is a general rule valid also for routes learned by routing protocols.

It is not possible to assign overlapping IP addresses to different interfaces.

Hope to help

Giuseppe

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Giuseppe Larosa · ‎02-06-2010