196 802.1X – Technical Guideline• interface Specify the port to be configured, and enter the interface configuration mode• dot1x timeout quiet-period Set the number of seconds that the switch remains in the quiet state following a failed au-thentication exchange with the client.The range is from 1 to 65535 seconds, the default is 60.• endReturn to the privileged EXEC mode.• show dot1x interfaceVerify your entries.To restore the default quiet time, use the no dot1x timeout quiet-period interfaceconfiguration command.14.3.13 DHCPIt is possible instead of configuring the Access Control Server IPs locally on the client computer todistribute them via DHCP.The Access Control Server IPs the client computer received via DHCP are visible in the AdvancedSettings section of the Barracuda NG Access Monitor or the Barracuda NG Personal Firewall. Bothprovide the functionality to delete the Access Control Server IPs, if necessary.DHCP RenewIf the client computers in the network are configured to obtain their IP address using DHCP, there isthe possibility to trigger a DHCP renew whenever the client computer is assigned a different VLAN.This can be configured either on the Access Control Server forcing it on the clients, or on the clientcomputer itself.Fig. 14–8 ExampleTable 14–12 Key 8021xEnableDHCPRenewItem DescriptionPath HKEY_USERS\.Default\Software\phion\phionvpn\settingsKey 8021xEnableDHCPRenewValue Enables or disables DHCP request when the assigned VLAN changes. (Default=0)• 0 - disabled• 1 - enabledChanges of this value take effect immidiately.Switch(config-if)# dot1x timeout quiet-period 30
