Dhcp; Slp - Novell NETWARE 6-DOCUMENTATION Manual

DHCP

SLP

The Dynamic Host Configuration Protocol (DHCP) uses a client-server
structure to provide configuration parameters to hosts. DHCP consists of a
protocol for providing host-specific configuration parameters from a DHCP
server (or collection of DHCP servers) to a host and a mechanism to allocate
network addresses to a host.
When the DHCP server is loaded, it reads its configuration information from
NDS and stores the information in its cache. As the DHCP server assigns
addresses to clients, it updates NDS, adding IP address objects or modifying
their NDS status information. The DHCP server can be configured to maintain
an audit log of this activity.
The administrator can use the DNS/DHCP Administration utility to view
objects to see how addresses have been assigned.
The Service Location Protocol provides the same function in IP networks as
SAP provides in IPX networks. It registers information in a database and
allows clients to query the database to find services. There are, however, two
principal differences between SAP and SLP:
SLP does not maintain a global database of services. It registers services
only in the local area. It discovers services in the local area via multicast
requests, which are forwarded using NDS replication from network to
network within a site.
SLP assumes that the client is able to locate either services themselves, or
a database server representing those services, using these pan-network
multicasts.
Through Novell's integration of SLP with NDS, local SLP information is
compiled to provide a global representation of all available services on the
network. This provides dynamic discovery of services locally and scalability
in large networks.
The topics listed below explain the components of SLP:
"How SLP Works" on page 20
"SLP Agents" on page 18
"SLP NDS Objects" on page 22
Understanding Network Communications
17