Vlan: Implements route communication between VLANs and between non-VLANs.

As we all know, VLANs exist for convenience of management and security. How to Create a Vlan?

Let me configure a simple Vlan network for communication between VLANs and between non-VLANs!

The parameters are as follows:

Vlan3: 172.28.255.255.255.255.0

Vlan5: 172.28.15.0 255.255.255.0

Vlan1: 172.28.16.0 255.255.255.0

Vlan4: 172.28.14.0 255.255.255.0

R. 11.11.1 255.255.255.0
R. 11.11.2 255.255.255.0

The network topology is as follows:

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Configure vswitch S1:

S1> enabl

S1 # conf ter

S1 (config) # int ran f0/1-2

S1 (config-if-range) # switch mode acce

S1 (config-if-range) # switch access vlan 3 // default vlan 3: VLAN0003

S1 (config-if-range) # exit

S1 (config) # int ran f0/3-4

S1 (config-if-range) # switch mode acce

S1 (config-if-range) # switch access vlan 5 // create vlan 5 by default: VLAN0005

S1 (config-if-range) # exit

S1 (config) # int f0/24

S1 (config-if) # switch mode trunk // configure the relay Port

Configure router R1:

R1> enabl

R1 # conf ter

R1 (config) # int f0/0.3 // configure the virtual channel

R1 (config-subif) # encap dot1Q 3 // configure vlan 3 Encapsulation

R1 (config-subif) # ip address 172.28.13.1 255.255.255.0

R1 (config-subif) # no shut

R1 (config-subif) # exit

R1 (config) # int f0/0.5 // configure the virtual channel

R1 (config-subif) # encap dot1Q 5 // configure vlan 5 Encapsulation

R1 (config-subif) # ip address 172.28.15.1 255.255.255.0

R1 (config-subif) # no shut

R1 (config-subif) # exit

R1 (config) # int f0/1

R1 (config-if) # ip address 172.28.16.1 255.255.0 // configure the gateway of the 172.28.16.0 network segment

R1 (config-if) # no shut

R1 (config-if) # exit

R1 (config) # ip rout 172.28.12.0 255.255.255.0 11.11.11.2 // configure a static route

R1 (config) # ip rout 172.28.12.0 255.255.255.0 11.11.11.2

Configure vswitch S4:

S4> enabl

S4 # conf ter

S4 (config) # int ran f0/1-2

S4 (config-if-range) # switch mode acce

S4 (config-if-range) # switch access vlan 4 // create vlan 4 by default: VLAN0004

S4 (config-if-range) # exit

S4 (config) # int f0/24

S4 (config-if) # switch mode trunk // configure the relay Port

Configure vror2 R2:

R2> enabl

R2 # conf ter

R2 (config) # int f0/1.4 // configure the virtual channel

R2 (config-subif) # encap dot1Q 4 // configure vlan 4 Encapsulation

R2 (config-subif) # ip address 172.28.14.1 255.255.255.0

R2 (config-subif) # no shut

R2 (config-subif) # exit

R2 (config) # int f0/0

R2 (config-if) # ip address 172.28.12.1 255.255.0 // configure the gateway of the 172.28.12.0 network segment

R2 (config-if) # no shut

R2 (config-if) # exit

R2 (config) # ip rout 172.28.255.255.255.255.0 11.11.11.1 // configure a static route

R2 (config) # ip rout 172.28.15.0 255.255.255.0 11.11.11.1

R2 (config) # ip rout 172.28.16.0 255.255.255.0 11.11.11.1

In fact, the static routes of R1 and R2 can be configured as default routes, because they all have only one route egress,

Default route:

R1 (config) # ip rout 0.0.0.0 0.0.0.0 11.11.11.2

R2 (config) # ip rout 0.0.0.0 0.0.0.0 11.11.11.1

The above configurations are implemented for Vlan routers and switches. The rest of the work is to assign IP addresses to each PC!

This article is from the "network" blog, please be sure to keep this source http://adamcat.blog.51cto.com/6217526/1305230