Name: _______________________________
SBA Instructions
PLEASE READ
Turn in this form, along with your scenario, when you are finished. You will then be given a
subnetting exercise to complete.
Please study your scenario carefully and read each instruction thoroughly.
You will have 1 hour to complete this Skills Based Assessment. Use your time wisely. If you
can’t figure something out, move on and come back to it later.
Save your running-config to the startup-config often, so you do not lose your work, should
something happen.
Let me know when you are finished. I will copy your running-config to a floppy disk and grade
your Skills Based Assessment by next week. You may contact me via email if you want to know
how you did.
After the 1 hour is up, you will have 15 minutes to complete the subnetting exercise. Please use
one of the desks in the back of the room, so the next person can take the Skills Based
Assessment.
Note: Some interface will have the host IP address while others will need you to figure out a
valid host IP address.
If your scenario involves two routers, the router on your left will be the Headquarters router, and
the router on your right will be the MainOffice router.
Station routers: ______________________
and ______________________
Start Time: ________________ (you have one hour)
Skills Based Assessment: Scenario #1
HeadQuarters MainOffice
SalesOffice Switch
Serial Ethernet
202.168.10.0/24
172.50.0.0/24
172.50.1.0/24
Serial
172.50.2.0/24
S0/.1
(DCE)
S0/.2 S1
S1
(DCE)
E0
E0
S1
Frame Relay
Network
RemoteOffice
172.16.1.99/24
DLCI 201
172.16.1.88/24
DLCI 101
Configuring the
Headquarters & MainOffice
Routers
NOTE: You will only be configuring the Headquarters and MainOffice routers. Assume all other
routers have been configured. Because the RemoteOffice and SalesOffice routers are not physically
present, the Headquarters and MainOffice routers will not show any connectivity to these routers and their
networks. Use good time management! If you can’t figure something out, move on and come back
to it later.
The Basics: On both MainOffice and Headquarters Routers
Configure the hostnames
Configure proper host IP addresses including any other parameters. Configure all interfaces shown in
the diagram above for both routers. If the host IP address is not shown in the diagram, use any valid
host IP address for that subnet.
Configure the enable secret password to be “class”
On the MainOffice Router only
Add a description to the Ethernet interface describing the link.
Configure the password to be “cisco” when someone tries to log in from the console port.
Configure the password to be “cisco” when someone tries to telnet into the router.
Configure a static hostname mapping for the SalesOffice router, so the user can “ping SalesOffice”
instead of using “ping 172.50.1.x”.
Configure the router to use the domain name server at 172.50.1.10
Add a message of “Authorized access only!” for anyone to see if when they log into the router.
IP Routing and Encapsulation
Add IGRP routing to all routers in the 172.50.0.0 network
Configure a single static route from Headquarters to the 172.50.0.0 network
Configure a default route so that all traffic leaving the 172.50.0.0 network will travel to the
Headquarters router.
Between Headquarters and MainOffice, use PPP encapsulation with CHAP authentication
Access Lists
Add an access list to the MainOffice Router that will deny telnets from outside the 172.50.0.0
network, into the 172.50.1.0 subnet. All other traffic is permitted.
WAN - Frame Relay: Headquarters
Configure the Serial 1 interface with an IP address and for Frame Relay encapsulation
The remote router has an IP address of 172.16.1.99. Assume Inverse-ARP is disabled and add a
statement that will allow Headquarters to be mapped to the remote router’s IP address.
172.16.1.88/24
DLCI 16
172.16.1.99/24
DLCI 18
Skills Based Assessment: Scenario #2
HeadQuarters MainOffice
SalesOffice Switch
Serial Ethernet
192.168.10.64/30
172.50.0.0/24
172.50.1.0/24
Serial
172.50.2.0/24
S0
(DCE)
S0 S1
S1
(DCE)
E0
E0
BRI 0
or S1
ISDN Network
RemoteOffice
172.16.1.99/24
8315551234
172.16.1.88/24
4085559876
Configuring the
Headquarters & MainOffice
Routers
NOTE: You will only be configuring the Headquarters and MainOffice routers. Assume all other
routers have been configured. Because the RemoteOffice and SalesOffice routers are not physically
present, the Headquarters and MainOffice routers will not show any connectivity to these routers and their
networks. Use good time management! If you can’t figure something out, move on and come back
to it later.
The Basics: On both MainOffice and Headquarters Routers
Configure the hostnames
Configure proper host IP addresses including any other parameters. Configure all interfaces shown in
the diagram above for both routers. If the host IP address is not shown in the diagram, use any valid
host IP address for that subnet.
Configure the enable secret password to be “class”
On the MainOffice Router only
Add a description to the Ethernet interface describing the link.
Configure the password to be “cisco” when someone tries to log in from the console port.
Configure the password to be “cisco” when someone tries to telnet into the router.
Configure a static hostname mapping for the SalesOffice router, so the user can “ping SalesOffice”
instead of using “ping 172.50.1.x”.
Set the clock on the router to show the current date and time
Add a message of “Authorized access only!” for anyone to see if when they log into the router.
IP Routing and Encapsulation
Add RIP routing to all routers in the 172.50.0.0 network
Configure a single static route from Headquarters to the 172.50.0.0 network
Configure a default route so that all traffic leaving the 172.50.0.0 network will travel to the
Headquarters router.
Between Headquarters and MainOffice, use PPP encapsulation with CHAP authentication
Access Lists
Add an access list to the MainOffice Router that will deny telnets from outside the 172.50.0.0
network, into the 172.50.1.0 subnet. All other traffic is permitted.
WAN - ISDN: Headquarters
Configure the Serial 1 interface with an IP address and for PPP encapsulation (NO CHAP or PAP).
Configure Headquarters router to include: The ISDN switch type that Headquarters connects to is an
AT&T basic-5ess, and the proper dialer map.
Skills Based Assessment: Scenario #3
HeadQuarters
MainOffice
Serial
202.168.10.0/24
172.50.1.0/24
HQ Network
S0/.1
(DCE)
S0/.2
E0
S1
Frame Relay
Network
RemoteOffice
172.16.1.99/24
DLCI 201
172.16.1.88/24
DLCI 101
Configuring the
Headquarters Router
SalesOffice
E0 E1
172.50.2.0/24
Sales Network
SwitchSwitch
E1
Switch
172.16.0.0/16
MainOffice Network
NOTE: You will only be configuring the Headquarters router. Assume all other routers have been
configured. Because the MainOffice, RemoteOffice and SalesOffice routers are not physically present,
the Headquarters router will not show any connectivity to these routers and their networks. Use good
time management! If you can’t figure something out, move on and come back to it later.
The Basics:
Configure the hostname
Configure proper host IP addresses including any other parameters. Configure all interfaces shown in
the diagram above for the Headquarters router. If the host IP address is not shown in the diagram, use
any valid host IP address for that subnet.
Configure the enable secret password to be “class”
More Basics
Add a description to the Ethernet interface describing the link.
Configure the password to be “cisco” when someone tries to log in from the console port.
Configure the password to be “cisco” when someone tries to telnet into the router.
Configure a static hostname mapping for the MainOffice router, so the user can “ping MainOffice”
instead of using “ping 172.16.0.x”.
Configure the router to use the domain name server at 172.50.1.10
Add a message of “Authorized access only!” for anyone to see if when they log into the router.
IP Routing and Encapsulation
Add IGRP routing to all routers in the 172.50.0.0 network
Configure a single static route from Headquarters to the 172.16.0.0 network
Configure a default route so that all traffic leaving the 172.50.0.0 network will travel to the
RemoteOffice router.
Between Headquarters and MainOffice, use PPP encapsulation with CHAP authentication
Access Lists
Add an access list to the Headquarters Router that will deny telnets from outside the 172.50.0.0
network, into the 172.50.1.0 subnet. All other traffic is permitted.
WAN - Frame Relay: Headquarters
Configure the Serial 1 interface with an IP address and for Frame Relay encapsulation
The remote router has an IP address of 172.16.1.99. Assume Inverse-ARP is disabled and add a
statement that will allow Headquarters to be mapped to the remote router’s IP address.
172.16.1.88/24
DLCI 16
172.16.1.99/24
DLCI 18
Skills Based Assessment: Scenario #4
HeadQuarters
MainOffice
Serial
202.168.10.0/24
172.50.1.0/24
HQ Network
S0/.1
(DCE)
S0/.2
E0
BRI 0
or S1
ISDN Network
RemoteOffice
172.16.1.99/24
8315551234
172.16.1.88/24
4085559876
Configuring the
Headquarters Router
SalesOffice
E0 E1
172.50.2.0/24
Sales Network
SwitchSwitch
E1
Switch
172.16.0.0/16
MainOffice Network
NOTE: You will only be configuring the Headquarters router. Assume all other routers have been
configured. Because the MainOffice, RemoteOffice and SalesOffice routers are not physically present,
the Headquarters router will not show any connectivity to these routers and their networks. Use good
time management! If you can’t figure something out, move on and come back to it later.
The Basics:
Configure the hostname
Configure proper host IP addresses including any other parameters. Configure all interfaces shown in
the diagram above for the Headquarters router. If the host IP address is not shown in the diagram, use
any valid host IP address for that subnet.
Configure the enable secret password to be “class”
More Basics
Add a description to the Ethernet interface describing the link.
Configure the password to be “cisco” when someone tries to log in from the console port.
Configure the password to be “cisco” when someone tries to telnet into the router.
Configure a static hostname mapping for the MainOffice router, so the user can “ping MainOffice”
instead of using “ping 172.16.0.x”.
Configure the router to use the domain name server at 172.50.1.10
Add a message of “Authorized access only!” for anyone to see if when they log into the router.
IP Routing and Encapsulation
Add IGRP routing to all routers in the 172.50.0.0 network
Configure a single static route from Headquarters to the 172.16.0.0 network
Configure a default route so that all traffic leaving the 172.50.0.0 network will travel to the
RemoteOffice router.
Between Headquarters and MainOffice, use PPP encapsulation with CHAP authentication
Access Lists
Add an access list to the Headquarters Router that will deny telnets from outside the 172.50.0.0
network, into the 172.50.1.0 subnet. All other traffic is permitted.
WAN - ISDN: Headquarters
Configure the Serial 1 interface with an IP address and for PPP encapsulation (NO CHAP or PAP).
Configure Headquarters router to include: The ISDN switch type that Headquarters connects to is an
AT&T basic-5ess, and the proper dialer map.
Skills Based Assessment: Scenario #5
HeadQuarters MainOffice
SalesOffice Switch
Serial Ethernet
202.168.10.0/24
172.50.0.0/24
172.50.1.0/24
Serial
172.50.2.0/24
S0/.1
(DCE)
S0/.2 S1
S1
(DCE)
E0
E0
S1
Frame Relay
Network
RemoteOffice
172.16.1.99/24
DLCI 201
172.16.1.88/24
DLCI 101
Configuring the
Headquarters & MainOffice
Routers
NOTE: You will only be configuring the Headquarters and MainOffice routers. Assume all other
routers have been configured. Because the RemoteOffice and SalesOffice routers are not physically
present, the Headquarters and MainOffice routers will not show any connectivity to these routers and their
networks. Use good time management! If you can’t figure something out, move on and come back
to it later.
The Basics: On both MainOffice and Headquarters Routers
Configure the hostnames
Configure proper host IP addresses including any other parameters. Configure all interfaces shown in
the diagram above for both routers. If the host IP address is not shown in the diagram, use any valid
host IP address for that subnet.
Configure the enable secret password to be “class”
On the MainOffice Router only
Add a description to the Ethernet interface describing the link.
Configure the password to be “cisco” when someone tries to log in from the console port.
Configure the password to be “cisco” when someone tries to telnet into the router.
Configure a static hostname mapping for the SalesOffice router, so the user can “ping SalesOffice”
instead of using “ping 172.50.1.x”.
Configure the router to use the domain name server at 172.50.1.10
Add a message of “Authorized access only!” for anyone to see if when they log into the router.
IP Routing and Encapsulation
Add IGRP routing to all routers in the 172.50.0.0 network
Configure a single static route from Headquarters to the 172.50.0.0 network
Configure a default route so that all traffic leaving the 172.50.0.0 network will travel to the
Headquarters router.
Between Headquarters and MainOffice, use PPP encapsulation with CHAP authentication
Access Lists
Add an access list to the MainOffice Router that will deny telnets from outside the 172.50.0.0
network, into the 172.50.1.0 subnet. All other traffic is permitted.
Routing IPX
On the MainOffice router add IPX routing for the Ethernet 0 interface. The IPX network address is
4abc and the layer 2 encapsulation is sap.
There is NO WAN configuration for this scenario
172.16.1.88/24
DLCI 16
172.16.1.99/24
DLCI 18
Skills Based Assessment: Scenario #6
HeadQuarters
MainOffice
Serial
202.168.10.0/24
172.50.1.0/24
HQ Network
S0/.1
(DCE)
S0/.2
E0
S1
Frame Relay
Network
RemoteOffice
172.16.1.99/24
DLCI 201
172.16.1.88/24
DLCI 101
Configuring the
Headquarters Router
SalesOffice
E0 E1
172.50.2.0/24
Sales Network
SwitchSwitch
E1
Switch
172.16.0.0/16
MainOffice Network
NOTE: You will only be configuring the Headquarters router. Assume all other routers have been
configured. Because the MainOffice, RemoteOffice and SalesOffice routers are not physically present,
the Headquarters router will not show any connectivity to these routers and their networks. Use good
time management! If you can’t figure something out, move on and come back to it later.
The Basics:
Configure the hostname
Configure proper host IP addresses including any other parameters. Configure all interfaces shown in
the diagram above for the Headquarters router. If the host IP address is not shown in the diagram, use
any valid host IP address for that subnet.
Configure the enable secret password to be “class”
More Basics
Add a description to the Ethernet interface describing the link.
Configure the password to be “cisco” when someone tries to log in from the console port.
Configure the password to be “cisco” when someone tries to telnet into the router.
Configure a static hostname mapping for the MainOffice router, so the user can “ping MainOffice”
instead of using “ping 172.16.0.x”.
Configure the router to use the domain name server at 172.50.1.10
Add a message of “Authorized access only!” for anyone to see if when they log into the router.
IP Routing and Encapsulation
Add IGRP routing to all routers in the 172.50.0.0 network
Configure a single static route from Headquarters to the 172.16.0.0 network
Configure a default route so that all traffic leaving the 172.50.0.0 network will travel to the
RemoteOffice router.
Between Headquarters and MainOffice, use PPP encapsulation with CHAP authentication
Access Lists
Add an access list to the Headquarters Router that will deny telnets from outside the 172.50.0.0
network, into the 172.50.1.0 subnet. All other traffic is permitted.
Routing IPX
On the Headquarters router add IPX routing for the Ethernet 0 interface. The IPX network address is
4abc and the layer 2 encapsulation is sap.
There is NO WAN configuration for this scenario
172.16.1.88/24
DLCI 16
172.16.1.99/24
DLCI 18
Name: __________________________________________
Start time: ___________________ (you have 15 minutes)
Subnetting: Exercise A
Show all work!
Host IP
Address
Subnet Mask
Class
Maximum
number of
usable
subnets
Maximum
number of
usable
hosts per
subnet
Major Network
Address
(Classful network
address)
131.108.1.77 255.255.255.240
Subnet Address of This
Subnet or Wire
Range of Host Addresses
For this subnet
Broadcast Address of This
Subnet
Name: __________________________________________
Start time: ___________________ (you have 15 minutes)
Subnetting: Exercise B
Show all work!
Host IP
Address
Subnet Mask
Class
Maximum
number of
usable
subnets
Maximum
number of
usable
hosts per
subnet
Major Network
Address
(Classful network
address)
200.108.1.77 255.255.255.224
Subnet Address of This
Subnet or Wire
Range of Host Addresses
For this subnet
Broadcast Address of This
Subnet
Name: __________________________________________
Start time: ___________________ (you have 15 minutes)
Subnetting: Exercise C
Show all work!
Host IP
Address
Subnet Mask
Class
Maximum
number of
usable
subnets
Maximum
number of
usable
hosts per
subnet
Major Network
Address
(Classful network
address)
201.108.1.77 255.255.255.248
Subnet Address of This
Subnet or Wire
Range of Host Addresses
For this subnet
Broadcast Address of This
Subnet
. Name: _______________________________
SBA Instructions
PLEASE READ
Turn in this form, along with your scenario,