ZyXEL Communications G-102 Betriebsanweisung PDF herunterladen (Seite 28)

ZyXEL G-102 User’s Guide

2-8 Wireless LAN Network

data encryption keys to encrypt every data packet that is wirelessly communicated between the

AP and the wireless clients.

Figure 2-7 WPA with RADIUS Application Example

2.3 Fragmentation Threshold

A Fragmentation Threshold is the maximum data fragment size (between 256 and 2432 bytes) that can be

sent in the wireless network before the ZyXEL G-102 will fragment the packet into smaller data frames.

A large Fragmentation Threshold is recommended for networks not prone to interference while you

should set a smaller threshold for busy networks or networks that are prone to interference.

If the Fragmentation Threshold value is smaller than the RTS/CTS Threshold value (see previously)

you set then the RTS (Request To Send)/CTS (Clear to Send) handshake will never occur as data frames

will be fragmented before they reach RTS/CTS Threshold size.

2.4 RTS/CTS Threshold

A hidden node occurs when two stations are within range of the same access point, but are not within range

of each other. The following figure illustrates a hidden node. Both stations are within range of the access

point (AP) or wireless gateway, but out-of-range of each other, so they cannot “hear” each other, that is

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ZyXEL Communications G-102 Betriebsanweisung Seite 28