Static Address Allocation; Assigning Dhcp Leases - Intermec 6400 User Manual

SECTION 2

Static Address Allocation

With static address allocation, the client always gets the
same IP address identified by its MAC address or by its
client ID. For dynamic address allocation, the DHCP
server identifies the client configuration by its subnet
number.

Assigning DHCP Leases

DHCP leases offer an automated mechanism for the safe
distribution and reuse of IP addresses. A DHCP server
assigns a lease to your 6400 computer when the server
assigns a temporary IP address. The lease can vary in time
from a few minutes to several years.
The server sets a default value for the lease time. When
the DHCP client requests an address, the client also can
request a lease time. If the requested lease time is equal to
or less than the server default value, the DHCP client gets
the amount it requests. If the client requests more than
the default value for its profile, the server assigns the
default value. The DHCP client then
maintains the lease time granted by the server.
"
automatically tries to contact the DHCP server
"
halfway through that lease time to renew the lease;
under most circumstances, the server renews the lease
successfully.
If the server is unavailable or will not renew the lease, the
DHCP client continues to try to contact the server until the
lease time has expired. When the lease expires, the client
stops using the leased address and begins broadcasting to
find another server willing to grant a new lease. The new
server can issue your 6400 computer a new lease, which
may or may not be a lease for your 6400 computer's
previous IP address.
6400 Computer TCP/IP Client User's Guide
6400 TCP/IP Client
2-51