Configuring The 21Xx To Send Arp Requests - Intermec MobileLAN 21 Series System Manual

MobileLAN access 21XX System Manual
To configure the 21XX as an ARP server
1. From the menu, click TCP/IP Settings. The TCP/IP Settings screen appears.
2. Click the down arrow on the right side of the ARP Server Mode field and choose
3. Click Submit Changes to save your changes. To activate your changes, from the

Configuring the 21XX to Send ARP Requests

ARP requests are multicast packets, which means they are sent to all devices on the
network. The access point periodically sends an unsolicited ARP request to the default
IP router so that all routers can update their routing tables. This ARP request enables a
network management program to learn about the access point on the network by
querying routers. The auto ARP period controls the time interval between ARP
broadcasts.
If the address of the default IP router is 0.0.0.0, the access point sends an ARP request
to its own IP address. Without this option, an access point might not use its IP address
for extended periods of time and the IP address would expire from the router ARP table.
If the IP address expires, the network management program must ping all potential
addresses on a subnet to locate active IP addresses or require the user to enter a list. You
should not let the IP address for the access point expire.
To set the auto ARP period
1. From the menu, click TCP/IP Settings. The TCP/IP Settings screen appears.
2. In the Auto ARP Minutes field enter a time a period from 1 to 120 minutes. To
3. Click Submit Changes to save your changes. To activate your changes, from the
3-10
No Flooding or Normal Flooding.
To disable the ARP server, choose Disabled.
menu bar click Save/Discard Changes and then click Save Changes and Reboot. For
help, see "Saving Configuration Changes" in Chapter 1.
disable this parameter, set the time period to 0.
menu bar click Save/Discard Changes and then click Save Changes and Reboot. For
help, see "Saving Configuration Changes" in Chapter 1.