Why VLAN line protocol is down?

On Cisco switches, after creating a new VLAN, we have noticed that VLAN interface is up however protocol doesn’t come up. MTSTJCORESW#sh int vlan 10…

How to block specific MAC address in Cisco Switch

(config)# mac address-table static 0349.1245.95ca vlan 192 drop just repeat with as many VLANs that you wanted to deny access for the specific MAC address

EtherChannel Configuration

About EtherChannel: You can configure maximum 8 ports in single port-channel. All ports in the port-channel should be of same type (Fast Ethernet or Gigabit…

Add new Switch to Cisco Stack Switch

  Prerequisite for adding new Switch to existing Stack: Upgrade IOS to match the stack switch version Make sure the licenses or feature sets are…

Configure Cisco Stack Switches

About switch stack: Maximum 9 switches can be connected in a single switch stack. Among the multiple switches connected in switch stack, one of the…

Configure DHCP Server on a Cisco switch or router

Configure Layer3 address on a switch interface that correlates with DHCP address scope. (config) # interface vlan 5 (config-vlan)# ip address 192.168.5.1 255.255.255.0 (config-vlan)# no…

Know about Cisco Switch and Router

Difference between enable secret password and enable password? enable secret password encrypts the password automatically using MD5 hash algorithm. enable password doesn’t encrypt the password thus stores…

Configure SSH in Cisco Switch

Step 1: Setup hostname, domain-name and Management IP address (config)# hostname corp-sw-01 (config)# ip domain-name itadminguide.com (config)# interface vlan 101 (config-if)# ip address 172.20.101.1 255.255.255.0…