Dhcp relay, Relay config, Relay interfaces – RCA 608WL User Manual
Page 175: Chapter 5
Chapter 5
Expert Configuration
E-DOC-CTC-20041126-0013 v1.0
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DHCP Relay
In a basic DHCP scenario a DHCP client on a certain part of a network is always able
to address a DHCP server residing in the same part of the network for completing its
IP configuration.
The SpeedTouch™ DHCP Relay allows to extend the reach DHCP client requests from
one connected link layer network (local or remote), via the SpeedTouch™ relay to
another connected network - equipped with a DHCP server - not residing in the same
link layer network.
The DHCP relay tab allows you to add/delete and overview SpeedTouch™ 's DHCP
relay interfaces.
The DHCP relay configuration is split up in two sections:
To add/delete and configure a DHCP relay server on a certain interface
To enable/disable and define the behaviour of the DHCP relay agent per
configured interface.
Relay Config
The Relay Configuration table allows you to add or delete (additional) DHCP relay
agents for a specific interface.
To create a new DHCP relay agent:
1
Click New.
2
In the DHCP relay server box, type the IP address of the DHCP server.
3
In the Interface list, click the appropriate relay interface (click None to indicate
no interface is specified).
4
In the Gateway Address (giaddr) box, type the Gateway IP address to be used
for the giaddr field in relayed DHCP packets.
5
Click Apply.
Relay Interfaces
The Relay Interfaces table allows you to configure interface specific DHCP relay
settings as:
Enable/disable the DHCP relay server
The maximum number of hops allowed for relayed DHCP requests and replies
(as indicated in the DHCP packet)
Defining whether to forward (trusted) or to drop (not trusted) DHCP request
packets when a DHCP relay agent info option is present and the Gateway IP
address field is 0 (as specified in RFC3046).
Define the remote ID (as specified in RFC3046) to allow the DHCP relay agent
to relay DHCP responses to the proper network.