Allied Telesis AT-WA7501 - Manual (Page 259)

AT-WA7500 and AT-WA7501 Installation and User’s Guide
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3. Click the X in the upper right corner of the window to return to the AP
Connections screen.
Using ICMP Echo
ICMP (Internet Control Message Protocol) echo lets you ping devices
using their IP address. ICMP echo can only be used if the access point
has determined the IP address of the end device or another access point.
If the access point is acting as an ARP server, it will determine the IP
addresses of the end devices that are attached to it and allow you to use
ICMP echo on the wireless network. The access point always knows the
IP address of all access points in the spanning tree.
To use ICMP echo
1. From the menu, click Maintenance > AP Connections. The AP
Connections screen appears.