Enterasys N Standalone (NSA) Series Configuration Manual page 944

IP Configuration Command Set
Configuring Broadcast Settings
Command Defaults
If port is not specified, default forwarding services will be performed as listed
above.
Example
This example shows how to enable forwarding of Domain Naming System UDP datagrams (port
53):
Matrix>Router(config)#ip forward-protocol udp 53
About DHCP/BOOTP Relay
DHCP/BOOTP relay functionality is applied with the help of IP broadcast forwarding. A typical
situation occurs when a host requests an IP address with no DHCP server located on that segment.
A routing module can forward the DHCP request to a server located on another network if:
•
IP forward-protocol is enabled for UDP as described in
•
the address of the DHCP server is configured as a helper address on the receiving interface of
the routing module forwarding the request, as described in
The DHCP/BOOTP relay function will detect the DHCP request and make the necessary changes
to the header, replacing the destination address with the address of the server, and the source with
its own address, and send it to the server. When the response comes from the server, the
DHCP/BOOTP relay function sends it to the host.
12-32 Matrix NSA Series Configuration Guide
Section 12.2.5.2, and
Section 12.2.5.3.