40 NETLink
®
Ethernet Products
communication. The infrastructure mode that has to consist of at
least one WLAN end device and an AP is also called BSS.
Comparable to a mobile network the AP establishes a radio cell
that is spatially restricted. WLAN end devices such as NETLink
®
need to log on to this radio cell and authenticate to it. The au-
thentication does only occur if the access data to the radio cell is
stored in NETLink
®
WLAN.
In order to log on NETLink
®
WLAN to an infrastructure net the
following aspects have to be regarded:
• The WLAN function needs to be activated in NETLink
®
WLAN
• The infrastructure mode needs to be selected in NETLink
®
WLAN
• The SSID of the access point needs to be stored in NETLink
®
WLAN
• The encoding settings of NETLink
®
WLAN need to correspond
with those of the access point
7.7.2 NETLink
®
WLAN in the ad hoc mode
The ad hoc mode describes an operating mode in which the
WLAN components communicate with each other directly. There-
fore, no central coordination point (access point) is involved in
the communication. The data transfer is realized directly by and
between the WLAN components. That is why this operating
mode is also called “peer to peer mode”.
In order to connect NETLink
®
WLAN directly with a PG/PC the
following aspects have to be regarded:
• The WLAN function needs to be activated in NETLink
®
WLAN
• The ad hoc mode needs to be selected in NETLink
®
WLAN
• NETLink
®
WLAN needs to be defined with a station name
• The channel on which NETLink
®
WLAN is supposed to send
needs to be selected
• The desired encoding settings need to be made (in the ad hoc
mode you can only use the relatively insecure WEP encoding
standard)
• The party that starts the communication has to be able to
understand one of the WLAN standards 802.11b or 802.11g
furthermore the NETLink
®
WLAN has to have a fixed IP
address, since the adapter does not serve as a DHCP Server.
7.7.3 Connection establishment PC to NETLink
®
WLAN in the
unencrypted ad hoc mode
At this time it is assumed that NETLink
®
WLAN already disposes
of a station name, that it is reachable via WLAN in the ad hoc
mode and that the WLAN connection is configurable via the
Windows WLAN assistant.
A hot spot must be set up
under Windows 10! Fu
r-
ther information can be
fou
nd at:
www.support.microsoft.co
m
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