Performing Advanced Configuration
SYSTIMAX® AirSPEED™ AP542
User Guide
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Subnet Mask:
The Access Point’s subnet mask. When IP Address Assignment Type is set to Dynamic, this field is
read-only and reports the unit’s current subnet mask. The subnet mask will default to 255.255.0.0 if the unit cannot
obtain one from a DHCP server.
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Gateway IP Address:
The IP address of the Access Point’s gateway. When IP Address Assignment Type is set to
Dynamic, this field is read-only and reports the IP address of the unit’s gateway. The gateway IP address will
default to 169.254.128.133 if the unit cannot obtain an address from a DHCP server.
DNS Client
If you prefer to use host names to identify network servers rather than IP addresses, you can configure the AP to act
as a Domain Name Service (DNS) client. When this feature is enabled, the Access Point contacts the network’s DNS
server to translate a host name to the appropriate network IP address. You can use this DNS Client functionality to
identify RADIUS servers by host name.
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Enable DNS Client:
Place a check mark in the box provided to enable DNS client functionality. Note that this
option must be enabled before you can configure the other DNS Client parameters.
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DNS Primary Server IP Address:
The IP address of the network’s primary DNS server.
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DNS Secondary Server IP Address:
The IP address of a second DNS server on the network. The Access Point
will attempt to contact the secondary server if the primary server is unavailable.
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DNS Client Default Domain Name:
The default domain name for the Access Point’s network (for example,
“systimax.com”). Contact your network administrator if you need assistance setting this parameter.
Advanced
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Default TTL (Time to Live):
Time to Live (TTL) is a field in an IP packet that specifies how long in seconds the
packet can remain active on the network. The Access Point uses the default TTL for packets it generates for which
the transport layer protocol does not specify a TTL value. This parameter supports a range from 0 to 255. By
default, TTL is 64.