Rockwell Automation 1783-WAPxxx Stratix 5100 Wireless Access Point User Manual - Manual (Page 230)

230 Rockwell Automation Publication 1783-UM006A-EN-P - May 2014
Chapter 6 Administering the WAP Access
5. (Optional) Save your entries in the configuration file.
copy running-config startup-config
This example shows how to configure ARP caching on an access point:
AP# configure terminal
AP(config)# dot11 arp-cache
AP(config)# end
Managing the System Time
and Date You can manage the system time and date on the wireless device automatically, by
using the Simple Network Time Protocol (SNTP), or manually, by setting the
time and date on the wireless device.
For complete syntax and usage information for the commands used in this
chapter, see the
Cisco IOS Configuration Fundamentals Command Reference
and the Cisco IOS IP and IP Routing Command Reference .
Simple Network Time Protocol (SNTP) is a simplified, client-only version of
NTP. SNTP can only receive the time from NTP servers; it cannot be used to
provide time services to other systems. SNTP typically provides time within 100
milliseconds of the accurate time, but it does not provide the complex filtering
and statistical mechanisms of NTP.
You can configure SNTP to request and accept packets from configured servers
or to accept NTP broadcast packets from any source. When multiple sources are
sending NTP packets, the server with the best stratum is selected.
If multiple servers are at the same stratum, a configured server is preferred over a
broadcast server. If multiple servers pass both tests, the first one to send a time
packet is selected. SNTP chooses only a new server if it stops receiving packets
from the currently selected server, or if a better server (according to the above
criteria) is discovered.
Configuring SNTP
SNTP is disabled by default. To enable SNTP on the access point, use one or
both of these commands in global configuration mode:
Table 79 - SNTP Commands
Command Purpose
sntp server {address |
hostname} [version number]
Configures SNTP to request NTP packets from an NTP
server.
sntp broadcast client Configures SNTP to accept NTP packets from any NTP
broadcast server.