ELSA LANCOM Wireless L-II, Руководство пользователя

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Operating modes and functions
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ELSA LANCOM Wireless L-II
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54
EN
If '0.0.0.0' is entered instead, the DHCP server automatically determines
the addresses (start or end) from the IP address settings in the 'TCP/IP
module'.
If the access point has no IP address of its own, the device will go into a
special operating mode. It then uses the IP address '10.0.0.254' for itself
and the address pool '10.x.x.x' for the assignment of IP addresses in the
network. In this state, the DHCP server only assigns IP addresses and
their validity to the computers in the network, but not the other
information.
If only one computer in the network is booted and requests an IP address via
DHCP with its network settings, a device with an activated DHCP module will
assign this computer an address. A valid address is taken from the pool as
an IP address. If the computer was already assigned an IP address at some
point in the past, it requests this same address and the DHCP server attempts
to reassign it this address if it has not already been assigned to another
computer.
The DHCP server also checks whether the address selected is still available
in the local network. As soon as the uniqueness of an address has been
established, the requesting computer is assigned the address found.
Subnet mask assignment
The netmask is assigned in the same way as the address. If a netmask is
entered in the DHCP module, this mask is used for the assignment.
Otherwise, the netmask from the TCP/IP module is used.
Broadcast address assignment
Normally, an address yielded from the valid IP addresses and the netmask is
used for broadcast packets in the local network. In special cases, however
(e.g. when using subnetworks for some of the workstation computers), it may
be necessary to use a different broadcast address. In this case, the broadcast
address to be used is entered in the DHCP module.
The default setting for the broadcast address should be changed by
experienced network specialists only.
DNS and NBNS assignment
This assignment is based on the associated entries in the 'TCP-IP module'.
If the DNS or NBNS servers of the wired LAN must also be available to the
WLAN, their addresses must be specified. Otherwise, the access point will
100235 Wireless L-11.book Seite 54 Montag, 30. Oktober 2000 5:43 17