vlsm subnetting

From: Frank Brodbeck (oakenshield@gmx.net)
Date: Wed Apr 09 2003 - 12:18:38 EST


Hi list,

I'm stucked here with variable length subnet masks.

Well I've gone through the rfc1878, googled a bit around, read through
the TCP/IP Networking Administration by Craig Hunt (okay I must confess
it's ``just" the german translation) and read a pile of eMails in your
list's archive with no result except that I'm confused...

Here's the detail:

I'm having here a class C network which I want to split into unequal
parts. Starting point is 172.25.156.0/24
Well I just thought *no problem* and started to split the whole net
via vlsm into the following parts:

net broadcast hosts range mask*
172.25.156.0 172.25.156.192 1-191 255.255.255.0
172.25.156.193 172.25.156.223 194-222 255.255.255.192
172.25.156.224 172.25.156.239 225-238 255.255.255.224
172.25.156.240 172.25.156.255 241-254 255.255.255.240
------------
(*) I'm pretty sure that this is completely rubbish but see it as a
symbol of my confusion

I guess I got the part, that a vlsm of 255.255.255.128 would divide my
class C into two subnets of each 126 hosts and that a vlsm of
255.255.255.192 would do the same with 4 subnets each with a max. of
62 hosts.

So if somebody could mind and bring some light in here I'd be thankful.

HAND
Frank.

-- 
Frank Brodbeck		System administrator apprentice
oakenshield@gmx.net	University of Karlsruhe
-
To unsubscribe from this list: send the line "unsubscribe linux-net" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html



This archive was generated by hypermail 2b29 : Tue Apr 15 2003 - 22:00:01 EST