User Manual of WNAP-7320
-87-
IAPP defines messages and data to be exchanged between Access Points and between the IAPP and high layer
management entities to support roaming. The IAPP protocol uses TCP for inter-Access Point communication
and UDP for RADIUS request/response exchanges. It also uses Layer 2 frames to update the forwarding tables
of Layer 2 devices.
A.21 What is Wireless Distribution System (WDS)?
The Wireless Distribution System feature allows WLAN AP to talk directly to other APs via wireless channel, like
the wireless WDS or repeater service.
A.22 What is Universal Plug and Play (UPnP)?
UPnP is an open networking architecture that consists of services, devices, and control points. The ultimate goal
is to allow data communication among all UPnP devices regardless of media, operating system, programming
language, and wired/wireless connection.
A.23 What is Maximum Transmission Unit (MTU) Size?
Maximum Transmission Unit (MTU) indicates the network stack of any packet is larger than this value will be
fragmented before the transmission. During the PPP negotiation, the peer of the PPP connection will indicate its
MRU and will be accepted. The actual MTU of the PPP connection will be set to the smaller one of MTU and the
peer’s MRU.
A.24 What is Clone MAC Address?
Clone MAC address is designed for your special application that request the clients to register to a server
machine with one identified MAC address. Since that all the clients will communicate outside world through the
WLAN Broadband Router, so have the cloned MAC address set on the WLAN Broadband Router will solve the
issue.
A.25 What is DDNS?
DDNS is the abbreviation of Dynamic Domain Name Server. It is designed for user owned the DNS server with
dynamic WAN IP address.
A.26 What is NTP Client?
NTP client is designed for fetching the current timestamp from internet via Network Time protocol. User can
specify time zone, NTP server IP address.
A.27 What is VPN?
VPN is the abbreviation of Virtual Private Network. It is designed for creating point-to point private link via shared
or public network.
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