14.9.11 Packet Tracer - Layer 2 Vlan Security 【Tested & Working】

A Virtual Local Area Network (VLAN) is a logical grouping of devices on a network that are configured to communicate as if they were attached to the same physical network segment. VLANs are used to segment a network into smaller, more manageable parts, improving security, reducing broadcast traffic, and enhancing network performance.

**VLAN Security Configuration** To enhance VLAN security, configure the following: 1. **VLAN Access Control**: Configure VLAN access control using the commands: S1(config)#interface fastEthernet 0/4 S1(config-if)#switchport mode trunk S1(config-if)#switchport trunk allowed vlan 10,20 14.9.11 packet tracer - layer 2 vlan security

This allows only VLANs 10 and 20 to pass through port Fa0/4. 2. **Port Security**: Configure port security to restrict unauthorized access to the network: S1(config)#interface fastEthernet 0/1 S1(config-if)#switchport port-security S1(config-if)#switchport port-security maximum 2 S1(config-if)#switchport port-security violation restrict “` This configuration allows only two devices to connect to port Fa0/1 and restricts any additional connections. A Virtual Local Area Network (VLAN) is a

S1(config)#interface fastEthernet 0/3 S1(config-if)#switchport mode access S1(config-if)#switchport access vlan 30 **VLAN Access Control**: Configure VLAN access control using