Alcatel 9000 Betriebsanweisung Seite 14

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page -xiv OmniSwitch 6800/6850/9000 Network Configuration Guide June 2006
Chapter 18 Configuring DHCP Relay .........................................................................................18-1
In This Chapter ..............................................................................................................18-1
DHCP Relay Specifications ..........................................................................................18-2
DHCP Relay Defaults ...................................................................................................18-3
Quick Steps for Setting Up DHCP Relay .....................................................................18-4
DHCP Relay Overview .................................................................................................18-5
DHCP .....................................................................................................................18-6
DHCP and the OmniSwitch ...................................................................................18-6
DHCP Relay and Authentication ...........................................................................18-6
External DHCP Relay Application ........................................................................18-7
Internal DHCP Relay .............................................................................................18-8
DHCP Relay Implementation .......................................................................................18-9
Global DHCP .........................................................................................................18-9
Setting the IP Address .....................................................................................18-9
Per-VLAN DHCP ..................................................................................................18-9
Identifying the VLAN .....................................................................................18-9
Configuring BOOTP/DHCP Relay Parameters ...................................................18-10
Setting the Forward Delay ....................................................................................18-10
Setting Maximum Hops .......................................................................................18-11
Setting the Relay Forwarding Option ...................................................................18-11
Using Automatic IP Configuration .............................................................................18-12
Enabling Automatic IP Configuration ..................................................................18-12
Configuring DHCP Security Features .........................................................................18-13
Using the Relay Agent Information Option (Option-82) .....................................18-13
How the Relay Agent Processes DHCP Packets from the Client .................18-13
How the Relay Agent Processes DHCP Packets from the Server .................18-14
Enabling the Relay Agent Information Option-82 ........................................18-14
Configuring a Relay Agent Information Option-82 Policy ...........................18-15
Using DHCP Snooping ........................................................................................18-15
DHCP Snooping Configuration Guidelines ..................................................18-16
Enabling DHCP Snooping .............................................................................18-17
Configuring the Port Trust Mode ..................................................................18-18
Configuring the Port Traffic Suppression Status ...........................................18-19
Configuring Port IP Source Filtering ............................................................18-19
Configuring Rate Limiting ............................................................................18-19
Configuring the DHCP Snooping Binding Table ..........................................18-20
Verifying the DHCP Relay Configuration ..................................................................18-22
Chapter 19 Configuring VRRP .....................................................................................................19-1
In This Chapter ..............................................................................................................19-1
VRRP Specifications .....................................................................................................19-2
VRRP Defaults ..............................................................................................................19-2
Quick Steps for Creating a Virtual Router ....................................................................19-3
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