Configuring Port-Based Access Control (802.1X)

802.1X Open VLAN Mode

802.1X Per-Port Configuration

Port Response

 

 

Open VLAN Mode with Only an Unauthorized-Client VLAN Configured:

When the port detects a client, it automatically becomes an untagged member of this VLAN. To limit security risks, the network services and access available on this VLAN should include only what a client needs to enable an authentication session. If the port is statically configured as an untagged member of another VLAN, the switch temporarily removes the port from membership in this other VLAN while membership in the Unauthorized-Client VLAN exists.

After the client is authenticated, and if the port is statically configured as an untagged member of another VLAN, the port’s access to this other VLAN is restored.

Note: If RADIUS authentication assigns a VLAN to the port, this assignment overrides any statically configured, untagged VLAN membership on the port (while the client is connected).

If the port is statically configured as a tagged member of a VLAN that is not used by 802.1X Open VLAN mode, the port returns to tagged membership in this VLAN upon successful client authentication. This happens even if the RADIUS server assigns the port to another, authorized VLAN. Note that if the port is already configured as a tagged member of a VLAN that RADIUS assigns as an authorized VLAN, then the port becomes an untagged member of that VLAN for the duration of the client connection. After the client disconnects, the port returns to tagged membership in that VLAN.

Open VLAN Mode with Only an Authorized-Client VLAN Configured:

Port automatically blocks a client that cannot initiate an authentication session.

If the client successfully completes an authentication session, the port becomes an untagged member of this VLAN.

Note: if RADIUS authentication assigns a VLAN, the port temporarily becomes an untagged member of the RADIUS- assigned VLAN —instead of the Authorized-Client VLAN—while the client is connected.

If the port is statically configured as a tagged member of any other VLAN, the port returns to tagged membership in this VLAN upon successful client authentication. This happens even if the RADIUS server assigns the port to another, authorized VLAN. If the port is already configured as a tagged member of a VLAN that RADIUS assigns as an authorized VLAN, then the port becomes an untagged member of that VLAN for the duration of the client connection. After the client disconnects, the port returns to tagged membership in that VLAN.

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HP 2626 (J4900A/B), 4100gl, 2650 (J4899A/B), 2600-PWR, 6108 manual 802.1X Per-Port Configuration Port Response