SMC Networks SMC6224M manual Private VLANs, 160

CONFIGURING THE SWITCH

CLI – This example sets port 3 to accept only tagged frames, assigns PVID 3 as the native VLAN ID, enables GVRP, sets the GARP timers, and then sets the switchport mode to hybrid.

Console(config)#interface ethernet	1/3	4-143
Console(config-if)#switchport acceptable-frame-types tagged		4-200
Console(config-if)#switchport ingress-filtering		4-201
Console(config-if)#switchport native vlan 3		4-202
Console(config-if)#switchport gvrp	20	4-217
Console(config-if)#garp timer join		4-218
Console(config-if)#garp timer leave 90		4-218
Console(config-if)#garp timer leaveall 2000		4-218
Console(config-if)#switchport mode	hybrid	4-199
Console(config-if)#

Private VLANs

Private VLANs provide port-based security and isolation between ports within the assigned VLAN. This switch supports two types of private VLANs: primary/secondary associated groups, and stand-alone isolated VLANs. A primary VLAN contains promiscuous ports that can communicate with all other ports in the private VLAN group, while a secondary (or community) VLAN contains community ports that can only communicate with other hosts within the secondary VLAN and with any of the promiscuous ports in the associated primary VLAN. Isolated VLANs, on the other hand, consist a single stand-alone VLAN that contains one promiscuous port and one or more isolated (or host) ports. In all cases, the promiscuous ports are designed to provide open access to an external network such as the Internet, while the community or isolated ports provide restricted access to local users.

Multiple primary VLANs can be configured on this switch, and multiple community VLANs can be associated with each primary VLAN. One or more isolated VLANs can also be configured. (Note that private VLANs and normal VLANs can exist simultaneously within the same switch.)

To configure primary/secondary associated groups, follow these steps:

1.Use the Private VLAN Configuration menu (page 3-163)to designate one or more community VLANs, and the primary VLAN that will channel traffic outside of the VLAN groups.

3-160