Switch1(config-if)# switchport trunk encapsulation dot1q Switch1(config-if)# switchport mode trunk Switch1(config)# interface fastethernet0/24 Switch1(config)# interface fastethernet0/11 Switch1(config-if)# switchport access vlan 4 Switch1(config)# interface fastethernet0/10 ! Assign Ports Fe0/10 and Fe0/11 in VLAN 4 Switch1(config)# interface fastethernet0/2 Switch1(config-if)# switchport access vlan 2 Switch1(config-if)# switchport mode access Switch1(config)# interface fastethernet0/1 ! Create VLANs 2 and 4 in the switch database
#Cisco mac address of vlan how to#
The ports of the two switches shall be configured as following:įe0/24 –> Trunk Port How to Create and Configure VLANs on Cisco Switches VLAN 4 belongs both to SWITCH 1 and SWITCH 2, therefore we need a Trunk Port between the two switches in order for hosts in VLAN4 in Switch 1 to be able to communicate with hosts in VLAN4 in Switch 2. On the LAN network above, we have three VLANs. Let’s see the following network scenario to help us clarify some concepts. The Trunk Port passes all VLANs between the switches. If you have more than one switch connected and you want the same VLANs to belong across all switches, then a Trunk Port must be configured between the switches. That is, each switch port interface is assigned individually into a Layer 2 VLAN. VLAN assignment on a switch is configured on a per-interface basis. Engineering Department: IP Subnet 192.168.4.0/24 –> VLAN 4īy separating the internal LAN into different IP subnets (and thus different VLANs) allows the network administrators to enforce traffic restrictions if needed between departments and have better control of internal hosts.
For example, let’s assume the following scenario: If you want for example to separate the different departments of your enterprise into different IP subnetworks, then each department should belong to its own Layer 2 VLAN. The need to configure several Layer 2 VLANs on a switch arises from the need to segment an internal Local Area Network (LAN) into different IP subnetworks. By default, only VLAN 1 is configured on the switch, so if you connect hosts on an out-of-the-box switch they all belong to the same Layer 2 broadcast domain. Up to 4094 VLANs can be configured on Cisco catalyst switches. This post will deal with creating Layer 2 VLANs on Cisco switches and performing all relevant configurations.
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