4.3.8 Packet Tracer 1942577 - Configure Layer 3 Switching and Inter-VLAN Routin
4.3.8 Packet Tracer 1942577 - Configure Layer 3 Switching and Inter-VLAN Routin
4.3.8 Packet Tracer 1942577 - Configure Layer 3 Switching and Inter-VLAN Routin
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Packet Tracer - Configure Layer 3 Switching and Inter-VLAN Routing
Addressing Table
Device Interface IP Address / Prefix
2001:db8:acad:10::1/64
MLS
MLS
2001:db8:acad:20::1/64
MLS
2001:db8:acad:30::1/64
MLS
VLAN 99 192.168.99.254/24
MLS
G0/2 209.165.200.225
G0/2
2001:db8:acad:a::1/64
2001:db8:acad:10::2/64
2001:db8:acad:20::2/64
2001:db8:acad:10::2/64
S1 VLAN 99 192.168.99.1
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Packet Tracer - Configure Layer 3 Switching and Inter-VLAN Routing
S2 VLAN 99 192.168.99.2
S3 VLAN 99 192.168.99.3
Objectives
Part 1: Configure Layer 3 Switching
Part 2: Configure Inter-VLAN Routing
Part 3: Configure IPv6 Inter-VLAN Routing
Background / Scenario
A multilayer switch like the Cisco Catalyst 3650 is capable of both Layer 2 switching and Layer 3 routing. One
of the advantages of using a multilayer switch is this dual functionality. A benefit for a small to medium-sized
company would be the ability to purchase a single multilayer switch instead of separate switching and routing
network devices. Capabilities of a multilayer switch include the ability to route from one VLAN to another
using multiple switched virtual interfaces (SVIs), as well as the ability to convert a Layer 2 switchport to a
Layer 3 interface.
Add VLANs to MLS according to the table below. Packet Tracer scoring is case-sensitive, so type the names
exactly as shown.
10 Staff
20 Student
30 Faculty
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Packet Tracer - Configure Layer 3 Switching and Inter-VLAN Routing
Configure and activate the SVI interfaces for VLANs 10, 20, 30, and 99 according to the Addressing Table.
The configuration for VLAN 10 is shown below as an example.
MLS(config)# interface vlan 10
MLS(config-if)# ip address 192.168.10.254 255.255.255.0
Step 3: Configure Trunking on MLS.
Trunk configuration differs slightly on a Layer 3 switch. On the Layer 3 switch, the trunking interface needs to
be encapsulated with the dot1q protocol, however it is not necessary to specify VLAN numbers as it is when
working with a router and subinterfaces. a. On MLS, configure interface g0/1.
b. Make the interface a static trunk port.
MLS(config-if)# switchport mode trunk
c. Specify the native VLAN as 99.
MLS(config-if)# switchport trunk native vlan 99
a. Use the show ip route command. Are there any active routes?
Type your answers here.
No.
b. Enter the ip routing command to enable routing in global configuration mode.
MLS(config)# ip routing
c. Use the show ip route command to verify routing is enabled.
MLS# show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1
- OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1
- IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
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Packet Tracer - Configure Layer 3 Switching and Inter-VLAN Routing
Enter the ipv6 unicast-routing command to enable IPv6 routing in global configuration mode.
MLS(config)# ipv6 unicast-routing
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Packet Tracer - Configure Layer 3 Switching and Inter-VLAN Routing
C 2001:DB8:ACAD:30::/64 [0/0]
via ::, Vlan30
L 2001:DB8:ACAD:30::1/128 [0/0]
via ::, Vlan30 L FF00::/8 [0/0]
via ::, Null0
Close configuration window
MLS
enable config t ip routing ipv6 unicast-
routing interface GigabitEthernet0/1
switchport trunk native vlan 999
switchport trunk encapsulation dot1q
switchport mode trunk interface
GigabitEthernet0/2 no switchport ip
address 209.165.200.225 255.255.255.252
ipv6 address 2001:DB8:ACAD:A::1/64vlan 10
name Staff vlan 20 name Student vlan 30
name Faculty interface Vlan10 ip address
192.168.10.254 255.255.255.0 ipv6 address
2001:DB8:ACAD:10::1/64 no shutdown
interface Vlan20 ip address 192.168.20.254
255.255.255.0 ipv6 address
2001:DB8:ACAD:20::1/64 no shutdown
interface Vlan30 ip address 192.168.30.254
255.255.255.0 ipv6 address
2001:DB8:ACAD:30::1/64 no shutdown
interface Vlan99 ip address 192.168.99.254
255.255.255.0 no shutdown end S1
enable conf t int g0/1
switchport mode trunk
switchport trunk native vlan 99
end
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