Ricoh Aficio SP 5100N - Manual (Page 112)

TCP/IP environment
4.1
4
TCP/IP environment
A TCP/IP network provides you with various protocols for using
printing devices and managing various types of networked
devices.
In this chapter, you will learn which management protocols are
available in TCP/IP network environments, and how to print via
your network print server using TCP/IP protocol.
Management protocols
Before beginning to print documents via your network printer,
you need to check or configure some parameters using
management protocols.
DHCP/BOOTP
Dynamic Host Configuration Protocol (DHCP) is a
communication protocol enabling network administrators to
centrally manage and to automate the assignment of IP
addresses in a network. In an IP network, each device needs a
unique IP address. DHCP lets a network administrator
supervise and distribute IP addresses from a central point and
automatically sends a new IP address when a device is plugged
into a different place in the network.
Bootstrap Protocol (BOOTP) is UDP/IP-based protocol which
allows a booting host to configure itself dynamically and
without user supervision. BOOTP provides means to notify a
host of its assigned IP address, the IP address of a boot server
host, and other configuration information, such as the local
subnet mask, the local time offset, and the addresses of default
routers. Addresses of various Internet servers can also be
transferred to a host using BOOTP.
DHCP is active by factory default on your network print server.
After boot up, the network print server will get an IP address
automatically from the DHCP server, if one exists. To set an IP
address manually, see page 2.2.
Configuring DHCP/BOOTP
To enable or disable DHCP/BOOTP, use one of the following
methods:
• Printer’s control panel: Refer to Network Menu settings in
your printer user’s guide.
• Web Image Monitor SP 5100N: Select Network
Settings Æ TCP/IP and select DHCP or BOOTP from the
IP Address Assignment Method list.
HTTP
Hypertext Transfer Protocol (HTTP) is an application layer
protocol for distributed, collaborative, hypermedia information
systems. It is a generic, stateless protocol which can be used
for many tasks beyond its use for hypertext, such as with name
servers and distributed object management systems. You are
using HTTP when you connect your network printer via a web
browser.
The Network Printer Card has a built-in web server, Web Image
Monitor SP 5100N. You can configure and manage your network
print server through Web Image Monitor SP 5100N using HTTP
over TCP/IP.
SNMP
Simple Network Management Protocol (SNMP), which is part of
the TCP/IP protocol suite, is an application layer protocol that
facilitates the exchange of management information between
network devices. It enables network administrators to remotely
monitor and configure network devices, find and solve network
problems, and plan for network growth.
Network devices are monitored and controlled using four basic
SNMP commands:
• read: is used by a Network Management server to monitor
network devices. The server examines different variables
that are maintained by the devices.
• write: is used by a Network Management server to control
managed devices. The server changes the values of
variables stored within the devices.
• trap: is used by network devices to asynchronously report
events to a Network Management server. When certain types
of events occur, a device sends a trap to the specified server.
• Traversal operations: are used by a Network Management
server to determine which variables a network device
supports and to sequentially gather information in variable
tables, such as a routing table.
Configuring SNMP
To access your network print server using SNMP, Community
Name/Access Permission pair must be properly specified. There
are two access permission: read and write.
Assign the IP addresses of trap hosts and community names (IP
addresses) of network devices in Web Image Monitor SP 5100N
select Network Settings Æ SNMP.
Using SNMP
Web Image Monitor SP 5100N accesses, configures, and
manages network devices using SNMP. You can use other MIB
(Management Information Base) browser software, which
allows you to access management information gathered from
network devices.