Netexpertise

Different methods exists to filter out mac addresses on a switch such as:– port security,– mac access lists or even– 802.1x port-based authentication with Radius. Mac access ACL require a higher end switch while 802.1x authentication is a pretty heavy setup and needs to manage a mac address database on a Radius server.Port security allows […]

Tags: Cisco, Mac Address, Switch, VLAN

Having a DHCP relay on a layer 2 switch is usually a nonsense. However, a DHCP server happened to crash and I had no access to configure a new DHCP service on a remote site.My only option was to set a DHCP relay on the switch that will forward requests to another site to avoid […]

Tags: Cisco, DHCP, network, Switch, VLAN