TDC 365 Autumn 2005 Homework 2 (partial)

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Oct 24, 2013 (4 years and 17 days ago)

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TDC 365

Autumn 2005

Homework 2 (partial)



Find the netid and the hostid of the following IP addresses:

114.34.2.8

132.56.8.6

208.34.54.12


A host with IP address 128.23.67.3 sends a message to a host with IP address
128.45.23.7. Does the message travel t
hrough a router? Assume no subnetting.


A host with IP address 108.67.18.70 sends a limited broadcast packet to all hosts in
the same network. What are the source and destination IP addresses used in this
packet?


In a class B subnet, we know the IP addr
ess of one of the hosts and the mask as given
below:

IP Address: 125.134.112.66

Mask: 255.255.224.0

What is the first address (subnet address)?


In a block of addresses, we know the IP address of one host is 182.44.82.16/26. What
is the first address (net
work address) and the last address (limited broadcast address)
in this block?


An organization is granted the block 130.56.0.0/16. The administrator wants to create
1024 subnets. Find the subnet mask, the number of addresses in each subnet, the first
and

last address in the first subnet, and the first and last address in the last subnet
(subnet 1024).


Find the range of addresses in the following block: 17.34.16.0/23


An ISP is granted a block of addresses starting with 150.80.0.0/16. The ISP wants to
di
stribute these blocks to 1000 customers as follows:

a.

The first group has 200 medium
-
sized businesses; each needs 128 addresses.

b.

The second group has 400 small businesses; each needs 16 addresses.

c.

The third group has 2000 households; each needs 4 addresses.

Design the subblocks and give the slash notation for each subblock. Find out how
many addresses are still available after these allocations.