Time; Automatically Acquiring The Time Settings Through Ntp - Cisco WAP581 Administration Manual

System Configuration
The WAP device acts as an ISATAP client. An ISATAP-enabled host or router must reside on the LAN. The
IP address or host name of the router is configured on the WAP device (by default, it is ISATAP). If configured
as a host name, the WAP device communicates with a DNS server to resolve the name into one or more
ISATAP router addresses. The WAP device then sends solicit messages to the routers. When an
ISATAP-enabled router replies with an advertisement message, the WAP device and the router establish the
tunnel. The tunnel interface is assigned a link-local and a global IPv6 address, which serve as virtual IPv6
interfaces on the IPv4 network.
When IPv6 hosts initiate the communication with the WAP device connected through the ISATAP router,
the IPv6 packets are encapsulated into IPv4 packets by the ISATAP router.
1. ISATAP Status — Check Enable to enable ISATAP on the device. By default, this option is enabled.
2. ISATAP Capable Host — Enter the IP address or DNS name of the ISATAP router. The default value
is isatap.
3. ISATAP Query Interval — Enter how often the WAP device should send queries to the DNS server to
attempt to resolve the ISATAP host name into an IP address. The valid range is 120 to 3600 seconds. The
default value is 120 seconds.
4. ISATAP Solicitation Interval — Enter how often the WAP device should send the router solicitation
messages to the ISATAP routers. The WAP device sends the router solicitation messages only when there
is no active ISATAP router. The valid range is 120 to 3600 seconds. The default value is 120 seconds.
5. ISATAP IPv6 Link Local Address— The IPv6 address used by the local physical link. The link local
address is not configurable and is assigned by using the IPv6 Neighbor Discovery process.
6. ISATAP IPv6 Global Address— If the WAP device has been assigned one or more IPv6 addresses
automatically, the addresses are listed.
Note When the tunnel is established, the ISATAP IPv6 Link Local Address and ISATAP IPv6 Global Address
fields appear on the page. These are the virtual IPv6 interface addresses.
7. Click Apply.

Time

A system clock provides a network-synchronized time-stamping service for the message logs. The system
clock can be configured manually or as a Network Time Protocol (NTP) client that obtains the clock data
from a server.
Use the Time Settings page to configure the system time manually or from a preconfigured NTP server. By
default, the WAP device is configured to obtain its time from a predefined list of NTP servers.
The current system time appears at the top of the page, along with the System Clock Source option.

Automatically Acquiring the Time Settings through NTP

To automatically acquire the time settings from a NTP server, follow these steps:
Cisco WAP581 Wireless-AC/N Dual Radio Access Point with 2.5GbE LAN Administration Guide

Time

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