User`s manual

40
AXIS 223M - System Options
IEEE 802.1x
IEEE 802.1x is an IEEE standard for port-based Network Admission Control. It provides
authentication to devices attached to a network port (wired or wireless), establishing a
point-to-point connection. If authentication fails, access is prevented on the port. 802.1x is
based on EAP (Extensible Authentication Protocol).
In a 802.1x enabled network switch, clients equipped with the
correct software can be
authenticated and allowed or denied network access at the Ethernet level.
Clients and servers in an 802.1x network may need to authenticate each other
by some
means. In the Axis implementation this is done with the help of digital certificates
provided by a Certification Authority. These are then validated by a third-party entity,
such as a RADIUS server, examples of which are Free Radius and Microsoft Internet
Authentication Service.
To perform the authentication, the RADIUS server uses various EAP methods/protocols, of
w
hich there are many. The one used in the Axis implementation is EAP-TLS
(EAP-Transport Layer Security).
The AXIS network video device presents its certificat
e to the network switch, which in turn
forwards this to the RADIUS server. The RADIUS server validates or rejects the certificate
and responds to the switch, and sends its own certificate to the client for validation. The
switch then allows or denies network access accordingly, on a pre-configured port.
Date & Time
Current Server Time - displays the current date and time (24h clock). The time can be
displayed in 12h clock format in the Overlay Images (see below).
New Server Time - Select your
time zone from the drop-down list. If you want the AXIS
223M clock to automatically adjust for daylight savings time, select the Automatically
adjust for daylight saving time changes.
From the Ti
me Mode section, select the preferred method to use for setting the time:
• Synchronize with
computer time - sets the time from the clock on your
computer.
• Synchronize with NTP Server - the camera will obtain the time from an NTP
server every 60 minutes. Specify the NTP server's IP address or host name.
• Set manually - this option allows you to manually set the time and date.
Note:
Note that if using a host name for the NTP server, a DNS server must be configured under TCP/IP settings.
See Network > TCP/IP below.
Date & Time Format Used in Images - specify the formats for the date and time (12h or
24h) displayed in the Live View video streams. Use the predefined formats or use your own
custom date and time formats. See Advanced File Naming & Date/Time Formats in the
online help for information on how to create your own file formats.