HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Services Configuration G - Page 61

Tasks at a glance (Optional.) Configuring the DHCP relay agent to release an IP address (Optional.) Configuring Option 82 Enabling DHCP You must enable DHCP to validate other DHCP relay agent settings. To enable DHCP: Step 1. Enter system view. 2. Enable DHCP. Command system-view dhcp enable Remarks N/A By default, DHCP is disabled. Enabling the DHCP relay agent on an interface With the DHCP relay agent enabled, an interface forwards incoming DHCP requests to a DHCP server. An IP address pool that contains the IP address of the DHCP relay agent interface must be configured on the DHCP server. Otherwise, the DHCP clients connected to the relay agent cannot obtain correct IP addresses. To enable the DHCP relay agent on an interface: Step 1. Enter system view. 2. Enter interface view. Command system-view interface interface-type interface-number 3. Enable the DHCP relay agent. dhcp select relay Remarks N/A N/A By default, when DHCP is enabled, an interface operates in the DHCP server mode. Specifying DHCP servers on a relay agent To improve availability, you can specify several DHCP servers on the DHCP relay agent. When the interface receives request messages from clients, the relay agent forwards them to all DHCP servers. Follow these guidelines when you specify a DHCP server address on a relay agent: • The IP address of any specified DHCP server must not reside on the same subnet as the IP address of the relay agent interface. Otherwise, the clients might fail to obtain IP addresses. • You can specify a maximum of eight DHCP servers. 52