PointRed Telecom Ltd. MCRD-2458 Manuale Utente

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Figure 71. DHCP Client
To configure a DHCP Client, select the interface from the interface tree. Its 
background turns blue.  
To configure DHCP client settings, select the Client option button and select the 
Active check box. The Client tab becomes available. 
To prevent the changing of a client’s default system gateway and DNS addresses 
when the client receives an IP address from the server, select the Keep DNS 
and Gateway 
check box. This is useful when you already have set a static 
default gateway and DNS and want them to remain unchanged, or if they are to 
be configured from another application (e.g. PPPoE client). In most other cases 
this field should be remain unselected. 
To complete the configuration, click the Submit button.
7.3.
Configuring a DHCP Relay
DHCP does not require a server on each subnet. To allow for scale and economy, 
a
relay agent 
can be installed listening to 
DHCP 
messages and forwarding them 
on (and onto other network segments). This eliminates the necessity of having a 
DHCP
server on each physical network.