D-Link DCS-1100 - mydlink-enabled Wired Network Camera Uživatelský manuál stáhnout pdf (Strana 31)

121

Point-to-Point Protocol (PPPoE)

 PPPoE is used mainly with ADSL services, where individual users connect to ADSL

transceiver (modem) over Ethernet or plain Metro Ethernet networks.

IP Networking Essential

• The Internet

122

Dynamic DNS (DDNS)

 What is DDNS?

• Dynamic DNS (Domain Name Service) is a feature where a device with dynamic

IP address can have its DNS hosted so users can access the device over the

Internet using the DNS name (e.g. ip-camera.dlink.com) instead of using the IP

address, which is more difficult to remember.

 How to?

• D-Link provides a tool in its IP Camera configuration software to enable DDNS

hosting facility.

• Customers can alternatively register directly with DynDNS.com to use DDNS.

IP Networking Essential

• The Internet

123

Username and Password Authentication

 Username and password authentication is the basic method of

authentication to protect access of data and network devices from

unauthorized access

 D-Link includes username and password authentication method in all of its

IP surveillance product (D-Link IP camera, D-ViewCam, D-Link NVR)

IP Networking Essential

• Network Security

NVR authentication

IP Camera authentication

D-ViewCam authentication

124

Wireless Standards

 802.11g

• 802.11g is a wireless networking standard that works in 2.4 GHz band with

maximum data rate of 54 Mbps.

• 802.11g works in the same frequency with 802.11b thus both 802.11g and

802.11b hardware are fully backward compatible.

• Although works in the same frequency with 802.11b, 802.11g offers higher data

rate because it uses OFDM modulation, the same modulation used by 802.11a

standard.

 802.11n

• 802.11n is the latest wireless networking standard that significantly improve

wireless network performance.

• 802.11n works in both 2.4GHz and 5 GHz frequency and offers maximum data

rate of 600 Mbps

IP Networking Essential

• 802.11 WLAN

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