NEXPEED NR304G-4W User’s Manual
NexComm Systems, Inc. 42 PAGE
Other Commands Related Interface
Administrative forced-up feature for the LAN Interface
The LAN interface with link-down state doesn’t reply to any ping request. It provides
pros and cons in remote management environment. For example, when installed in the
remote office with IP addresses assigned on both LAN and WAN interfaces, an
administrator in central office may check operational status of the remote device by
ping requests. If it replies for both IP addresses, LAN and WAN interfaces are working
properly, but if it replies for only IP address of WAN interface we can guess that LAN
interface is down for some reason (e.g. RJ-45 connector is unplugged or connected
device is power-down). However, the remove device has only one IP address on LAN
interface, an administrator may not guess which is not working if it doesn’t reply to the
ping request.
Related Commands : interface <ifname> forced-up
If you enter the following command, the LAN interface is comes UP in spite of LAN
link down.
COMMAND
(conf)# interface <ifname> forced-up on|off
Parameters
<ifname> - interface name
on - enables forced-up feature
off – disables forced-up feature
To verify your changes, use the following command.
COMMAND
(conf)# show interface [<ifname>]
Note:
If you omit the interface name, all interfaces are listed.
Usage Examples:
(conf)# int lan forced-up on
(conf)# show interface lan
Interface: lan, status <
UP(forced)
>, mtu 1500
ip address 192.168.1.1 255.255.255.0
