ITT300: Data Communication & Networking
Sep2020-Jan2021/Group Assignment
IT T 3 0 0: G R O U P A S S IG N M E N T
S U B N E T T IN G IP A D D R E S S IN G P A C K E T T R A C E R (2 0 % )
Due Dates: Submission – 10 JA N U A R Y 2021 (W E E K 12)
O b je c tive s
Part 1: Design an IP Addressing Scheme
Part 2: Assign IP Addresses to Network Devices and Verify Connectivity
S c en a rio
In this activity, you are given the network address of 2 0 2.1 .1 .0/2 4 to create subnets
and provide the IP addressing for the network shown in the Topology. The required
host addresses for each L A N and W A N link are labeled in the topology.
Addressing Table:
Device
R1
R2
R3
Interface
fa0/0
IP address
Subnet Mask
Default Gateway
N/A
fa1/0
N/A
Fa2/0
N/A
fa0/0
N/A
fa1/0
N/A
fa2/0
N/A
fa3/0
N/A
fa0/0
N/A
fa1/0
N/A
fa2/0
N/A
fa3/0
N/A
ITT300: Data Communication & Networking
Sep2020-Jan2021/Group Assignment
fa0/0
N/A
fa1/0
N/A
fa2/0
N/A
S1
VLAN1
N/A
S2
VLAN1
N/A
S3
VLAN1
N/A
S4
VLAN1
N/A
S5
VLAN1
N/A
S6
VLAN1
N/A
S7
VLAN1
N/A
S8
VLAN1
N/A
R4
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
P a rt 1 : D e s ig n a n IP A d d re s sin g S ch e m e
Step 1: Subnet the 202.1.1.0/24 network based on the maximum number of hosts
required by the largest subnet.
N o te : P le as e in s e rt a n s w er in th e b la ck b o x
a. Based on the topology, how many subnets are needed?
b. How many bits must be borrowed to support the number of subnets in the
topology table?
c. How many subnets does this create?
d. How many usable host addresses does this create per subnet?
ITT300: Data Communication & Networking
Sep2020-Jan2021/Group Assignment
e. Calculate the binary value for the first TEN subnets. N o te : P le as e fill in th e
b la n k s, S u b n e t ze ro n o t u s e d
Net 1
: 172 . 31 . 1 . 0 0 0 0 0 0 0 0
Net 2
: 172 . 31 . 1 . ____________
Net 3
: 172 . 31 . 1 . ____________
Net 4
: 172 . 31 . 1 . ____________
Net 5
: 172 . 31 . 1 . ____________
Net 6
: 172 . 31 . 1 . ____________
Net 7
: 172 . 31 . 1 . ____________
Net 8
: 172 . 31 . 1 . ____________
Net 9
: 172 . 31 . 1 . ____________
Net 10
: 172 . 31 . 1 . ____________
Net 11
: 172 . 31 . 1 . ____________
f. Calculate the binary and decimal value of the new subnet mask.
g. Complete the Subnet Table, listing all available subnets, the first and last usable
host address, and the broadcast address.
N o te : n o t n e e d to u s e a ll ro w s
Subnetting Table:
Subnet
Num ber
1
Subnet
A d d re s s
202.1.1.0
F irs t U s a b le
H o s t IP
A d d re s s
202.1.1.1
L a s t U s a b le
H o s t IP
A d d re s s
202.1.1.14
B ro a d c a st
A d d re s s
202.1.1.15
2
202.1.1.16
202.1.1.17
202.1.1.30
202.1.1.31
3
202.1.1.32
202.1.1.33
202.1.1.46
202.1.1.47
4
5
6
7
8
9
10
11
ITT300: Data Communication & Networking
Sep2020-Jan2021/Group Assignment
Step 2: Assign the subnets to the network shown in the topology.
When assigning the subnets, keep in mind that routing is necessary to allow
information to be sent throughout the network.
N o te : P le as e fill in th e b la n ks
a. Assign Subnet 1 to the R1 LAN: ________________
b. Assign Subnet 2 to the R2 LAN: ________________
c. Assign Subnet 3 to the R3 LAN: ________________
d. Assign Subnet 4 to the R4 LAN: ________________
e. Assign Subnet 5 to the link between : ____________
f. Assign Subnet 6 to the link between : ____________
g. Assign Subnet 7 to the link between : ____________
h. Assign Subnet 8 to the link between : ____________
i. Assign Subnet 9 to the link between : _____________
j. Assign Subnet 10 to the link between: _____________
k. Assign Subnet 11 to the link between: _____________
Step 3: Document the addressing scheme.
Complete the Addressing Table using the following guidelines:
a. Assign the first usable IP addresses to routers for each of the L A N links.
b. Use the following method to assign W A N link IP addresses:
· For the WAN link between R 1 and R 2 , assign the first usable IP address to R 1
and last usable IP address R 2.
· For the W A N link between R 2 and R 3 , assign the first usable IP address
to R 2 and last usable IP address R 3 .
· For the W A N link between R 3 and R 4 , assign the first usable IP address
to R 3 and last usable IP address R 4 .
c. Assign the second usable IP addresses to the switches.
d. Assign the last usable IP addresses to the hosts.
ITT300: Data Communication & Networking
Sep2020-Jan2021/Group Assignment
P a rt 2 : A s s ig n IP A d d re s s es to N e tw ork D e vic e s a n d V e rify C o n n e c tivity
Most of the IP addressing is already configured on this network. Implement the
following steps to complete the addressing configuration.
Step 1: Configure IP addressing on R1 and R2 LAN interfaces.
Step 2: Configure IP addressing on S3, including the default gateway.
Step 3: Configure IP addressing on PC4, including the default gateway.
Step 4: Verify connectivity.
You can only verify connectivity from R 1 , R 2 , S 3 , and P C 4 . However, you should be
able to ping every IP address listed in the A d d re s s in g T a b le.
T ip s : A ll s u b n e ttin g c a lc u latio n m u s t s h o w n in d e ta ils . (N o te : In s e rt d e ta ils)
N o te : S a ve a s :
G R O U P N O _ G R O U P C L A S S _ .p k t (P a ck e t T ra c er d ia g ram )
R e s u lts S u c ce ss fu l P in g : R 1 _ R 2 .jp g , R 2 _ S 3 .jp g , P C 4 _R 1 .jp g , P C 4 _ R 2.jp g )
(S n a p s h o ts )
ITT300: Data Communication & Networking
GROUP
: M3CS1105__
GROUP NO.
: ____
Sep2020-Jan2021/Group Assignment
GROUP MEMBER : 1. ________________________________________
2. ________________________________________
3. ________________________________________
Suggested Scoring Rubric: