Netgear XCM8810 Chassis User Manual - Page 431
Configuring Network Login Port Restart
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NETGEAR 8800 User Manual To display the status of dynamic VLAN configuration on the switch, use the following command: show netlogin The switch displays the current state of dynamic VLAN creation (enabled or disabled) and the uplink port(s) associated with the dynamic VLAN. Configuring Network Login Port Restart You can configure network login to restart specific network-login-enabled ports when the last authenticated supplicant unauthenticates, regardless of the configured authentication methods on the port. This feature, known as network login port restart, is available with all network login authentication methods although is most practical with web-based network login. This section describes how this feature behaves with web-based network login; MAC-based and 802.1x network login do not experience any differences in behavior if you enable network login port restart. Currently with web-based network login, if you have an authenticated supplicant and log out of the network, you must manually release the IP address allocated to you by the Dynamic Host Control Protocol (DHCP) server. The DHCP server dynamically manages and allocates IP addresses to supplicants. When a supplicant accesses the network, the DHCP server provides an IP address to that supplicant. DHCP cannot renegotiate their leases, which is why you must manually release the IP address. For example, if the idle timer expires on the switch, the switch disconnects your network session. If this occurs, it may be unclear why you are unable to access the network. After you manually renew the IP address, you are redirected to the network login login page and can log back into the network. To solve this situation in a single supplicant per port environment, port restart triggers the DHCP client on the PC to restart the DHCP address assignment process. Guidelines for Using Network Login Port Restart Configure network login port restart on ports with directly attached supplicants. If you use a hub to connect multiple supplicants, only the last unauthenticated supplicant causes the port to restart. Although the hub does not inflict harm to your network, in this situation, the previously unauthenticated supplicants do not get the benefit of the port restart configuration. Enabling Network Login Port Restart To enable network login port restart, use the following command: configure netlogin ports [all | ] restart Disabling Network Login Port Restart To disable network login port restart, use the following command: configure netlogin ports [all | ] no-restart Chapter 16. Network Login | 431
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