3Com 4510G Configuration Manual page 604

As shown in Figure 2-12:
On port GigabitEthernet 1/0/2, enable 802.1X and set VLAN 10 as the guest VLAN of the port. If
the device sends an EAP-Request/Identity packet from the port for the maximum number of times
but still receives no response, the device adds the port to its guest VLAN. In this case, the host
and the update server are both in VLAN 10, so that the host can access the update server and
download the 802.1X client.
As shown in Figure 2-13:
After the host passes the authentication and logs in, the host is added to VLAN 5. In this case, the
host and GigabitEthernet 1/0/3 are both in VLAN 5, so that the host can access the Internet.
Figure 2-11 Network diagram for guest VLAN configuration
Update server
VLAN 10
GE1/0/1
VLAN 1
GE1/0/2
Switch
Supplicant
Figure 2-12 Network diagram with the port in the guest VLAN
Authenticator server
VLAN 2
GE1/0/4
VLAN 5
GE1/0/3
Internet
2-19