Packet Tracer – Configuring
Router-on-a-Stick Inter-VLAN Routing
Please click here to download topology 5.1.3.6 Packet Tracer - Configuring Router-on-a-Stick Inter-VLAN Routing Instructions
Topology
5.1.3.6 Packet Tracer - Configuring Router-on-a-Stick Inter-VLAN Routing Instructions |
Addressing Table
Device
|
Interface
|
IPv4 Address
|
Subnet Mask
|
Default Gateway
|
R1
|
G0/0.10
|
172.17.10.1
|
255.255.255.0
|
N/A
|
G0/0.30
|
172.17.30.1
|
255.255.255.0
|
N/A
|
|
PC1
|
NIC
|
172.17.10.10
|
255.255.255.0
|
172.17.10.1
|
PC2
|
NIC
|
172.17.30.10
|
255.255.255.0
|
172.17.30.1
|
Objectives
Part 1: Test Connectivity without Inter-VLAN
Routing
Part 2: Add VLANs to a Switch
Part 3: Configure Subinterfaces
Part 4: Test Connectivity with
Inter-VLAN Routing
Scenario
In this activity, you will check for
connectivity prior to implementing inter-VLAN routing. You will then configure
VLANs and inter-VLAN routing. Finally, you will enable trunking and verify
connectivity between VLANs.
Part 1:
Test Connectivity Without
Inter-VLAN Routing
Step 1:
Ping between PC1 and PC3.
Wait for switch convergence or click Fast Forward Time a few times. When the
link lights are green for PC1 and PC3, ping between PC1 and PC3. Because the
two PCs are on separate networks and R1
is not configured, the ping fails.
Step 2:
Switch to Simulation mode to
monitor pings.
a.
Switch to Simulation mode by clicking the Simulation
tab or pressing Shift+S.
b.
Click Capture/Forward to
see the steps the ping takes between PC1
and PC3. Notice how the ping never
leaves PC1. What process failed and
why?
____________________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________
Part 2:
Add VLANs to a Switch
Step 1:
Create VLANs on S1.
Return to Realtime mode and create
VLAN 10 and VLAN 30 on S1.
Step 2:
Assign VLANs to ports.
a.
Configure interface F0/6 and F0/11
as access ports and assign VLANs.
·
Assign PC1 to VLAN 10.
·
Assign PC3 to VLAN 30.
b.
Issue the show vlan brief
command to verify VLAN configuration.
S1# show vlan brief
VLAN Name Status Ports
---- --------------------------------
--------- -------------------------------
1
default
active Fa0/1, Fa0/2, Fa0/3,
Fa0/4
Fa0/5, Fa0/7, Fa0/8, Fa0/9
Fa0/10, Fa0/12, Fa0/13, Fa0/14
Fa0/15, Fa0/16, Fa0/17, Fa0/18
Fa0/19, Fa0/20, Fa0/21, Fa0/22
Fa0/23, Fa0/24,
Gig0/1, Gig0/2
10
VLAN0010 active Fa0/11
30
VLAN0030 active Fa0/6
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
Step 3:
Test connectivity between PC1
and PC3.
From PC1,
ping PC3. The pings should still
fail. Why were the pings unsuccessful?
____________________________________________________________________________________
____________________________________________________________________________________
Part 3:
Configure Subinterfaces
Step 1:
Configure subinterfaces on R1
using the 802.1Q encapsulation.
a.
Create the subinterface
G0/0.10.
·
Set the encapsulation type to
802.1Q and assign VLAN 10 to the subinterface.
·
Refer to the Address Table and assign the correct IP
address to the subinterface.
b.
Repeat for the G0/0.30
subinterface.
Step 2:
Verify Configuration.
a.
Use the show ip interface brief command to verify subinterface
configuration. Both subinterfaces are down. Subinterfaces are virtual
interfaces that are associated with a physical interface. Therefore, in order
to enable subinterfaces, you must enable the physical interface that they are
associated with.
b.
Enable the G0/0 interface. Verify
that the subinterfaces are now active.
Part 4:
Test Connectivity with
Inter-VLAN Routing
Step 1:
Ping between PC1 and PC3.
From PC1,
ping PC3. The pings should still
fail.
Step 2:
Enable trunking.
a.
On S1, issue the show vlan command. What VLAN is G0/1
assigned to? ______________
b.
Because the router was
configured with multiple subinterfaces assigned to different VLANs, the switch
port connecting to the router must be configured as a trunk. Enable trunking on
interface G0/1.
c.
How can you determine that the
interface is a trunk port using the show
vlan command?
____________________________________________________________________________________
d.
Issue the show interface trunk command to verify the interface is configured
as a trunk.
Step 3:
Switch to Simulation mode to
monitor pings.
a.
Switch to Simulation
mode by clicking the Simulation tab or pressing Shift+S.
b.
Click Capture/Forward to
see the steps the ping takes between PC1
and PC3.
c.
You should see ARP requests and
replies between S1 and R1. Then ARP requests and replies
between R1 and S3. Then PC1
can encapsulate an ICMP echo request with the proper data-link layer
information and R1 will route the request to PC3.
Note: After the ARP process finishes, you may need to click Reset
Simulation to see the ICMP process complete.
Suggested Scoring Rubric
Packet Tracer scores 60 points. The four
questions are worth 10 points each.
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