Avaya Configuring SNMP, BOOTP, DHCP, and RARP Services Manual de usuario descargar pdf (Pagina 47)

SNMP, BootP, BootP/DHCP Relay, DHCP Server, and RARP Concepts

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For example, when the DHCP server starts up, it connects to the NetID Server

Manager and requests its configuration. The DHCP server assigns IP addresses to

clients that request an address using the DHCP protocol. When the DHCP server

assigns an IP address to a client, it sends the client’s host name and IP address to

the NetID Server Manager. The NetID Server Manager then sends this

information to the database.

The primary benefit of the NetID Server Manager is that it reduces the load on the

database, because every DHCP server is not polling for configuration changes and

does not require an active (resource consuming) connection to the database. It also

reduces the load on the network, because it is the only component that polls the

database for configuration changes.

BootP/DHCP Relay Implementation

The BootP/DHCP relay implementation allows you to configure a router to act as

a BootP relay agent. The BootP relay agent forwards DHCPREQUEST packets to

DHCP servers on other subnets and forwards DHCPREPLY packets back to

DHCP clients. You must enable the BootP relay agent on the interface to the

subnet to be served and configure it with the IP address of the DHCP server. For

more information about configuring a BootP relay agent, see “Specifying

Interfaces to Receive and Forward DHCP Packets” on page 5-2.

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Avaya Configuring SNMP, BOOTP, DHCP, and RARP Services Manual de usuario Pagina 47