ITECH1102 Networking and Security: Subnetting, Routing Tables and NICs

This document presents a comprehensive solution for an ITECH1102 Networking and Security assignment, focusing on IP addressing and subnetting. The solution begins with an ISP-provided IP address and calculates a subnetting table, including host requirements, available hosts, network addresses, masks, and usable ranges for different states (Queensland, Northern Territory, Western Australia, New South Wales, South Australia, Tasmania, and Victoria). The document then details routing tables for three edge routers (R1, R2, and R3), specifying destination networks, interfaces, and next hops. Finally, it provides IP addresses for the Network Interface Cards (NICs) of the routers, connecting various states and networks. The solution covers the configuration of NICs for NT, WA, and SA routers, ensuring proper network connectivity and data transfer. The assignment demonstrates a practical understanding of network design and configuration.

ITECH1102 Networking and Security
Let us assume that our ISP provided IP address is 115.221.141.106/24, then our sub network table will be as the below table;
Name Hosts
Needed
Hosts
Available
Unused
Hosts
Network
Address
Slas
h
Mask Usable Range Broadcast Wildcard
New South Wales
(NSW)A
4194302 4194302 0 115.192.0.0 /10 255.192.0.0 115.192.0.1 -
115.255.255.254
115.255.255.25
5
0.63.255.255
Victoria (VIC) 4000000 4194302 194302 116.0.0.0 /10 255.192.0.0 116.0.0.1 -
116.63.255.254
116.63.255.255 0.63.255.255
Queensland (QLD) 3000000 4194302 1194302 116.64.0.0 /10 255.192.0.0 116.64.0.1 -
116.127.255.254
116.127.255.25
5
0.63.255.255
Western Australia
(WA)
2000000 2097150 97150 116.128.0.0 /11 255.224.0.0 116.128.0.1 -
116.159.255.254
116.159.255.25
5
0.31.255.255
New South Wales
(NSW)B
1805698 2097150 291452 116.160.0.0 /11 255.224.0.0 116.160.0.1 -
116.191.255.254
116.191.255.25
5
0.31.255.255
South Australia
(SA)
1000000 1048574 48574 116.192.0.0 /12 255.240.0.0 116.192.0.1 -
116.207.255.254
116.207.255.25
5
0.15.255.255
Tasmania (TAS)A 262142 262142 0 116.208.0.0 /14 255.252.0.0 116.208.0.1 -
116.211.255.254
116.211.255.25
5
0.3.255.255
Northern
Territory (NT)A
131072 262142 131070 116.212.0.0 /14 255.252.0.0 116.212.0.1 -
116.215.255.254
116.215.255.25
5
0.3.255.255
Tasmania (TAS)B 37858 65534 27676 116.216.0.0 /16 255.255.0.0 116.216.0.1 -
116.216.255.254
116.216.255.25
5
0.0.255.255
Northern
Territory (NT)B
18928 32766 13838 116.217.0.0 /17 255.255.128.0 116.217.0.1 -
116.217.127.254
116.217.127.25
5
0.0.127.255
Between R1 and
R2
2 2 0 116.217.128.0 /30 255.255.255.252 116.217.128.1 -
116.217.128.2
116.217.128.3 0.0.0.3
Between R1 and
R3
2 2 0 116.217.128.4 /30 255.255.255.252 116.217.128.5 -
116.217.128.6
116.217.128.7 0.0.0.3
Between R2 and
R4
2 2 0 116.217.128.8 /30 255.255.255.252 116.217.128.9 -
116.217.128.10
116.217.128.11 0.0.0.3
Between R4 and
R5
2 2 0 116.217.128.12 /30 255.255.255.252 116.217.128.13 -
116.217.128.14
116.217.128.15 0.0.0.3

Between R5 and
R6
2 2 0 116.217.128.16 /30 255.255.255.252 116.217.128.17 -
116.217.128.18
116.217.128.19 0.0.0.3
Between R3 and
R5
2 2 0 116.217.128.20 /30 255.255.255.252 116.217.128.21 -
116.217.128.22
116.217.128.23 0.0.0.3

WA
NT
NS
W
QLD
VIC
TAS
SA
ITECH1102 Networking and Security
IP Address (NT) 116.212.0.0, 116.217.0.0
Subnet Mask 255.252.0.0, 255.255.128.0
Number of
Address
163838
Appendix A
IP Address (SA) 116.192.0.0
Subnet Mask 255.240.0.0
Number of Address 1048574
IP Address (TAS) 116.208.0.0,116.216.0.0
Subnet Mask 255.252.0.0,255.255.0.0
Number of Address 327,676
Page 1: Insert IP address and the Subnet Mask in the box provided for each state
IP Address (WA) 116.128.0.0
Subnet Mask 255.224.0.0
Number of Address 2097150

IP Address (QLD) 116.64.0.0
Subnet Mask 255.192.0.0
Number of Address 4194302
IP Address (NSW) 115.192.0.0, 116.160.0.0
Subnet Mask 255.192.0.0, 255.224.0.0
Number of Address 6,291,452
IP Address (VIC) 116.0.0.0
Subnet Mask 255.192.0.0
Number of Address 4194302
Page 2: Insert routing table entry in the box for 3 edge routers
Routing Table for R1
Destination Network Interface Next Hop
116.128.0.0 116.217.128.2 116.217.128.1
116.217.128.4 116.217.128.2 116.217.128.1
116.192.0.0 116.217.128.2 116.217.128.1
116.217.128.20 116.217.128.2 116.217.128.1

WA
NT
NSW
QLD
VIC
TAS
SA
Destination Network Interface Next Hop
116.128.0.0 116.217.128.6 116.217.128.5
116.217.128.0 116.217.128.6 116.217.128.5
116.217.0.0 116.217.128.6 116.217.128.5
116.212.0.0 116.217.128.6 116.217.128.5
116.217.128.8 116.217.128.6 116.217.128.5
R2
R1
R3
Routing Table for R2
Routing Table for R3
Destination Network Interface Next Hop
116.217.0.0 116.217.128.1 116.217.128.2
116.212.0.0 116.217.128.1 116.217.128.2
116.217.128.8 116.217.128.5 116.217.128.6
116.192.0.0 116.217.128.5 116.217.128.6
116.217.128.20 116.217.128.5 116.217.128.6

WA
NT
NSW
QLD
VIC
TAS
SA
Page 3: Insert the IP address for the Network Interface Card (NIC) to connect NT, WA and SA
NIC #1
NIC #2
NIC #3
NIC #4
NIC #5
NIC #6
NIC #7
NIC #8
NIC #9
NIC #10
NIC #11
NIC #12
R2
R1
R3
Router NIC IP Address
R1 #5 116.217.128.1
R1 #8 116.217.128.5
R1 #6 116.128.0.1
R1 #7 116.128.0.2
R2 #4 116.217.128.2
R2 #2 116.212.0.1
R2 #3 116.212.0.2
R2 #1 116.217.128.9
R3 #9 116.217.128.6
R3 #10 116.192.0.1
R3 #11 116.192.0.2
R3 #12 116.217.128.13