User Interface
R&S
®
GP-U/GP-E/GP-S/GP-T
73
User Manual 3646.3836.02 ─ 01
Field
Description
"Default Lease Time"
Enter the default lease time (in seconds) to determine the amount of time that a
computer has a valid IP address.
"Lease Time"
Enter the maximum lease time (in seconds).
"Prevent IP Conflicts"
Select this checkbox to have the DHCP server ping an IP address to check that
it is not yet in use before assigning it to a new client.
"Port"
Specify the port that is used to listen for and transmit queries. This is useful for
debugging purposes. The default port for DHVPv4/BOOTP is port 67.
"Interfaces"
This table displays all interfaces (Ethernet, VLAN and bridge) on which a static
connection has been configured and their DHCP settings.
Click to open the "DHCP Settings" panel for the respective interface.
The interface "DHCP Settings" panel contains the following elements:
Field
Description
"ON"/"OFF"
A slider switch indicates whether the DHCP server is active ("ON") or not
("OFF") on this interface. By clicking the slider switch, you can toggle the state
of the DHCP server on this interface.
On the "General" tab:
Field
Description
"Network"
Select the subnet whose IP addresses are distributed by the DHCP server.
"Range Start IP"
Enter a start IP to specify the range of IP addresses that are distributed to the
client computers.
"Range End IP"
Enter an end IP to specify the range of IP addresses that are distributed to the
client computers.
Note:
Make sure that the permanent IP addresses are not inside the IP address
range of the DHCP server as permanent IP addresses are not excluded automat-
ically during dynamic address assignment. Otherwise, addresses may be
assigned twice.
"Lease Time"
Specify the time that a computer has a valid IP address in minutes. The default
lease time is
60
minutes.
"Gateway"
Specify the default gateway IP address, usually the IP address of your gatepro-
tect Firewall, to be pushed to the client.
"Preferred DNS
server"/"Alternative
DNS server"
Optional: If the gateprotect Firewall does not carry out name resolution, enter
internal DNS servers that are located in the network or the Internet. Otherwise,
the clients are allocated the IP address of the gateprotect Firewall as DNS server.
"WINS server"
If there is a WINS server in the network, use this input field to communicate it to
the clients.
"Preferred NTP
server"""Alternative
NTP server"
Clients may use NTP servers to determine the exact time. This is particularly
important for user authentication via Windows servers.
On the "Static IP Addresses" tab:
Menu Reference