- CSC
85
27
Assignment 1
(25% of the course mark)
Full mark for this assignment is 100.
Submit
Q1
_
ans.
pdf,
Q2
a
_ans.p
kt,
Q2
b
_ans.p
kt,
Q2
c
_ans.p
kt,
Q2
d
_ans.p
kt,
Q2
e
_ans.p
kt,
Q2
f_
ans.
,
Q3_ans.pdf
Q3_ans.pkt (Optional, submit only if you created one in
Question 3.)
Warning:
Do not zip or archive your files. Do not use .pkz and .pka format for your Packet tracer files.
Any submission not in PDF or pkt format will be ignored.
Use Packet Tracer 6.2.
Question 1 (
15
marks)
Download
Q1.pkt
.
Q1.pkt simulates
the switched network
of
USQ College.
Assuming all links ar
e of the same cost, answer the questions in part A and fill in the
table
in
part B
.
Submit all your answers as Q1_ans.pdf.
Part A
Why are links L1 and L2 are both active? Will there
be any loops in this case?
Part B
Determine the status of the links, and role of the ports.
Fill in the table. Mark all entries as NA if they are not used in determining the status of a link
or the role of a port. L9 and L10 has been done for you.
Link
Link status
Port role
Active
Cheapest
path cost
Next hop
BID lower
Next hop
PID lower
Port
in
switch
Root
/
designated
or
non
-
designated
Ports of
Root
switch
Link active ,
link leads to
root switch
Cheaper
to
root
switch
Next
hop BID
lower
Next
hop
PID
lower
L
3
L4
L5
L6
L7
L8
L9
yes
yes
no
yes
S5
root
no
yes
no
NA
NA
S1
designated
no
yes
yes
NA
NA
L10
no
yes
no
no
S5
no
no
no
no
NA
NA
S1
designated
no
no
yes
NA
NA
L11
L12
L13
Question 2 (
50
marks)
No routing protocol
such as RIP, EIGRP, OSPF
is used
in this question.
Part A
Download Q2a.pkt.
Given:
1.
IPv4 is used.
2.
PC11 belongs to VLAN 10 using 192.168.10.0 network.
3.
PC21 belongs to VLAN 20 using 192.168.20.0 network.
4.
PC11, PC21 use DHCP provided by GR1.
5.
GR1 performs
inter
-
VLAN routing using a single link.
6.
No routing protocols is used.
7.
PC11 and PC21 can ping each other.
Implement the part network
of USQ High School. Submit your
Packet Tracer file as Q2
a
_ans.pkt.
Part B
Download Q2b.pkt.
Given:
1.
IPv4 is used.
2.
PC12
belongs to VLAN 10
.
3.
PC12 uses
static address 192.168.10.131/24.
4.
PC22 belongs to VLAN 20
.
5.
PC22
use
static address 192.168.20.132/24.
6.
GR2 performs inter
-
VLAN routing using a single link.
7.
No routing protocols is used.
8.
PC12 and PC22 can ping each other.
Imple
ment the part network of USQ High School. Submit your Packet Tracer file as
Q2b_ans.pkt.
Part C
Download Q2c.pkt.
Given:
1.
GR2, SB, PC12 and PC22 are the same as
in Part B.
2.
PC31, PC32 uses DHCP provided by
w
ireless
WRC using 192.168.30.0/24.
3.
WRC
(and PC31, PC32) belongs to VLAN 20.
4.
PC31, PC32 can ping each other and PC12, PC22.
5.
PC12, PC22 can ping each other but not PC31, PC32.
Implement the part network of USQ High School. Submit your Packet Tracer file as
Q2c_ans.pkt.
Part D
Download Q2d
.pkt.
Given:
1.
GR1, SA, PC11 and PC12 are the same as
in Part
A
.
2.
GR2, SB, PC12 and PC22 and WRC, PC31 and PC32 are the same as in Part C
3.
The two links between SA and SB is a LACP EtherChannel.
4.
PC31, PC32 can ping each other and PC11, PC12, PC21 and PC22.
5.
PC11, PC12, PC21 and PC22 can ping each other but not PC31, PC32.
Implement the part network of USQ High School. Submit your Packet Tracer file as
Q2d_ans.pkt.
Part E
Download Q2e.pkt.
Given:
1.
Except RUSQ and SUSQ, all are the same as
in
part D.
2.
RUSQ
, SUSQ, GR1 and GR2 formed a LAN.
3.
GR1 and GR2 participated in
HSRP
and served as a group of routers providing gateway
service to all PCs.
4.
GR1 and GR2 participated in
GLBP
and served as a group of routers providing gateway
service to RUSQ in reaching all PC
s.
5.
PC31, PC32 can ping all PCs and lo1 of RUSQ.
6.
All other PCs can ping each other and lo1 of RUSQ except PC31 and PC32.
Implement the network of USQ High School. Submit your Packet Tracer file as Q2
e
_ans.pkt.
Part
F
Explain, as in part E,
why PC31 and PC32 can ping other PCs but others cannot ping them.
Submit your answer as Q2f_ans.pdf.
Question 3
(3
5
marks)
Part A
Bill Gateway
proposed EtherRouter which uses an EtherChannel to connect to
routers
participating in
FHRP
such as
GLBP to provide load
balanci
ng
and increase the efficiency of
the traffic flow
.
He claimed that
EtherChannel can use all links
(Link1, Link 2 in LAN 1)
to reach all FHRP gateway
routers
(R1 and R2 for LAN 1)
at
the same time;
All FHRP gateway routers
(R1 and R2 for LAN 1)
will forward traffic if load balancing is
enabled;
A LAN
(LAN 1)
which attached to the Internet uses EtherRouter may increase the
volume of data in transition by using more links and routers.
Wi
th two links in the EtherChannel and two FHRP routers, the increase in traffic volume
can be up to almost two times.
In less than 500 words, explain why EtherRouter is feasible or not.
If it is feasible, implement the network shown above using Packet Trace
r
and submit the file
as Q3_ans.pkt.
If not, suggest another way to replace EtherRouter.
Put all your answers in Q3_ans.pdf.
Part B
DHCP for IPv6 has a SLAAC mode.
Explain
whether w
e can
achieve SLAAC mode for
IPv4
DHCP or not.
Put all your answers in
Q3_ans.pdf.
***** End of Assignment 1 *****
EtherRouter
EtherRouter
