Local Area Networks (LANs) DHCP servers
Digi TransPort WR Routers User Guide
53
Show DHCP server settings
View DHCP status to monitor which devices have been given IP configuration by the TransPort device
and to diagnose DHCP issues.
Web
1. On the menu, click Network > Networks > LANs. The LANs page appears.
2. Select a LAN.
3. Expand the DHCP Server group to view the current DHCP configuration. The Enable DHCP
Server option indicates whether the DHCP server is Off, Server, or Relay.
Command line
To show the status of the DHCP server, use the show dhcp command. For example:
digi.router> show dhcp
DHCP Status
-----------
IP address Hostname MAC Address Lease Expires At
----------------------------------------------------------------------------
192.168.123.123 IKY-CMS-JPINKN1 38:ea:a7:fd:de:cd 16:32:16, 14 Sep 2016
192.168.123.124 IKY-CMS-BOB 38:ea:a7:fd:a3:22 18:21:06, 14 Sep 2016
digi.router>
DHCP relay
DHCP relay allows a router to forward DHCP requests from one LAN to a separate DHCP server,
typically connected to a different LAN.
For TransPort devices, DHCP relay is configured by providing the IP address of a DHCP relay server,
rather than an IP address range. If both the DHCP relay server and an IP address range are specified,
DHCP relay is used, and the specified IP address range is ignored.
Up to two DHCP relay servers can be provided for each LAN: a primary and secondary relay server. If
two relay servers are provided, DHCP requests are forwarded to both servers without waiting for a
response. Clients will typically use the IP address from the first DHCP response received.
Configure DHCP relay
Configuring DHCP relay involves the following items:
Required configuration items
n IP address of the primary DHCP relay server, to define the relay server that will respond to
DHCP requests.
Additional configuration items
n IP address of a secondary DHCP relay server.
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