Revision: 1.00
Copyright 2015 U.S. Robotics Corporation
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WAN/LAN Switchover Feature
The WAN/LAN switchover feature defines the state of the Ethernet port at power-on. By default, this
feature is enabled. Learn how to
disable WAN/LAN Switchover.
Two modes are possible:
WAN mode: the Ethernet interface act as a WAN interface
LAN mode: the Ethernet interface acts as a LAN interface
Each time the unit is powered on:
Gateway sends a DHCP discover message over the Ethernet interface.
When it receives a DHCP offer it proceeds with the DHCP protocol and the Ethernet interface
remains in WAN state.
When it does not receive a DHCP offer it resends the DHCP discover message five times. If no DHCP
offer is received after five tries, the gateway starts running a DHCP server on the Ethernet interface
and act as a LAN interface.
TIP:
WAN/LAN detection only happens during power on. The Ethernet connection remains in the same
state (WAN or LAN) until a power cycle or reset has happened.