From: Bhisham Bajaj (bhishambajaj@xxxxxxxxx)
Date: Mon Jan 07 2002 - 12:15:37 GMT-3
I tryed it with RIP but RIP and IGRP are the same
Take a class b address and use VLSM
I start with using a 172.1.0.0 class B ip address
I use a 3 bit mask to make subnet of this major
network
so i get is 2^3= 8 networks
1) 000 00000 172.1.0.0/19
2) 001 00000 172.1.32.0/19
3) 010 00000 172.1.64.0/19
4) 011 00000 172.1.96.0/19
5) 100 00000 172.1.128.0/19
6) 101 00000 172.1.160.0/19
7) 110 00000 172.1.192.0/19
8) 111 00000 172.1.224.0/19
I avoid using the all 000 network coz i think it is
not legal
and it helps us to have a better summarization table
if some one has so comments on this I would be obliged
to hear from u
ok in this network we start with using the
172.1.32.0/19 network
on the link between router R3( int e 0 ) and R4 ( int
e 0)
R3 is the ASBR and has s 0 int the OSPF network
and the E0 in the RIP network
now we will use an other network address for the OSPF
network
I will take network 172.1.64.0/19 and
010 00 000 64
010 01 000 72
010 01 001 73
010 01 111 79
010 10 000 80
010 10 001 81
010 10 111 87
010 11 000 88
010 11 001 89
010 11 111 95
The plan that we have three area in the OSPF network
and we are trying to
have a address in different are so that they can be
summarized
now in each area I can have 6 networks with a
mask of /8 bit and then summarize
them into one summarized network address with a /5 bit
mask
Area 1 will have networks 73 to 79 with a /8 bit mask
and this area will be summarizing all this networks
into 72/5 mask
area 0 will have network 81 to 87 with a /8 bit mask
and this are will be summarizing all this networks
into 80/5 mask
are 2 will have network 89 to 95 with a /8 bit mask
and this are will be summarizing all this networks
into 88/5 mask
-----------------------------OSPF------------------------
Area 0
|
EO
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:56:18 GMT-3