Novell NETWARE 6-DOCUMENTATION Manual page 1712

138 Novell DNS/DHCP Management Utility Administration Guide
eDirectory is set to DELETE_DUPLICATE. This ensures that only
one lease is in use at a time because the original lease is deleted when
the mobile client requests a new lease.
If the remote office is on the same subnet as that of the local office,
the client should use the same IP address. If the client does not use
the same IP address, verify that there is only one DHCP server for the
subnet.
Problem—Clients work properly when manually configured, but some
functions do not work when using DHCP.
Cause—One or more global client parameters were not configured
properly in DHCP.
Solution—Verify that all parameters assigned by DHCP are properly
configured.
Problem—At a site with a limited number of leases, many clients cannot
obtain a lease. The leases are not being efficiently shared by all clients
that must use them.
Cause—Clients are not releasing the leases when they are finished using
them because the lease time is too long.
Solution—Reduce the lease time to a few hours so that leases can be made
available to other clients that are waiting to use the IP addresses.
Otherwise, you might need to purchase more IP addresses and configure
more or larger address ranges to make more IP addresses available.
Problem—It is difficult to identify and manage network resources when
using dynamic DHCP assignments.
Cause—The IP addresses of the clients might change if you use DHCP
continually over a period of time and the lease period is set to a
reasonably low value.
Solution—Use static DHCP assignments when you want to use a specific
IP address assigned to the client for identification and management.
Problem—DHCPSRVR.NLM is loaded and the trace screen has been
activated with the -d flag, but there is no evidence of interaction between
the server and clients, and clients are not receiving IP address
assignments.
Cause—The server is not physically linked to the client's
communications media or the server did not bind its IP protocol to the
interface card, which shares physical media access with the client.