Siemens Gigaset SX761 dsl Manual page 59

Please make sure to note which subnet mask is set when assigning the IP address.
The preset subnet mask defines that the first three parts of the IP address must be
identical for all network components (including routers).
We recommend that you use an address from a block that is reserved for private use.
This address block is 192.168.1.1 to 192.168.255.254.
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Adjust the Subnet mask if necessary.
The Subnet mask
tical for all network components (including routers).
Notes:
New settings can only be made after the Gigaset SX761 dsl has been rebooted. If nec-
essary, reconfigure the IP address on your PC (including one that is statically assigned)
so that it matches the new configuration.
Configuring the DHCP server
The Gigaset SX761 dsl has a
quently, the IP addresses of the PCs are automatically assigned by the Gigaset SX761 dsl.
Note:
If the DHCP server for the Gigaset SX761 dsl is activated, you can configure the
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network setting on the PC so that the option Obtain an IP address automatically
is set up. For further information, refer to the section entitled "Configuring the
local area network" on the CD-ROM.
If you deactivate the DHCP server, you will have to assign a static IP address for the
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PCs that use the network settings.
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To activate the DHCP server, select On.
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If the DHCP server is active, you can define a Lease time. The least time indicates
how long the client may use the allocated IP configuration.
Note:
If you select Never expires, the IP addresses are never changed. Activate this
option if you want to make NAT or firewall settings using the IP addresses of the
PCs; otherwise you have to assign static IP addresses to these PCs.
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Define the range of IP addresses the Gigaset SX761 dsl should use to automatically
assign IP addresses to the PCs. Define the First issued IP address and the Last
issued IP address.
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If you want to define a different Default gateway in your local area network instead
of the Gigaset SX761 dsl, enter the IP address of this default gateways in the relevant
boxes.
specifies how many address parts of the IP address must be iden-
DHCP server
Configuring Advanced Settings
for which the factory setting is active. Conse-
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