Sierra Wireless Overdrive, User Manual

Page: 106 / 172

98 Settings
●
DHCP IP Address Range
— The starting and ending address of the range of IP addresses available
for the device to dynamically (that is, not permanently) assign to computers connected to it.
●
DHCP Lease Time
— Amount of time, in minutes, a computer can use its assigned IP address before
it is required to renew the lease. After this time is up, the computer is automatically assigned a new
dynamic IP address.
Enter a number between 2 and 10080.
●
Max DHCP Clients
— The number of DHCP addresses that can be assigned and active at one time.
It’s recommended you set this to a number greater than the number of Wi-Fi users.
●
DNS Mode
— Specifies how the DNS servers (that the DHCP clients are to communicate with) are
obtained.
䡲
Auto : Use the DNS server specified by Sprint. DNS Relay is enabled by default.
䡲
Manual : The routing hardware assigns DHCP clients the DNS servers specified in the Manual
DNS Server #1 and #2 fields.

Use this option to access a DNS server that provides customized addressing or if you have a
local DNS server on your network.

If
DNS Relay
is disabled, the routing hardware rejects DNS requests targeting the internal
DNS proxy.
●
Static IP addresses to use for the DNS servers (if DNS Mode is Manual). ( Manual DNS Server #1 and
#2 )
Available only if
DNS Mode
is Manual.
●
DNS Relay
— If enabled, and if
DNS Mode
(see above) is Manual, the routing hardware assigns
DHCP clients the DNS servers specified in the
Manual DNS Server #1
and
#2
fields.
If disabled, the routing hardware rejects DNS requests targeting the internal DNS proxy.
The DNS Relay field is configurable and displayed only if DNS Mode is Manual. If DNS Mode is Auto,
DNS Relay is enabled by default.
●
Assign a permanent IP address to a MAC address, and view the static IP assignment list. See
“DHCP Static IP Assignment List” on page 99.
DHCP
DHCP (Dynamic Host Control Protocol) automatically assigns an IP address to each device on the
network and manages other network configuration information for devices connected to your network.
You do not need to manually configure the IP address on each device that’s on your network.
The assigned IP addresses are not permanent (as opposed to when using static IP).
Most ISPs (Internet Service Providers) use DHCP.
Normally, you should enable DHCP, in which case you must configure each device on the network
with one of the following:
●
TCP/IP settings set to “Obtain an IP address automatically”.
●
TCP/IP bound to the Ethernet connection with DHCP.