CHAPTER 5: Advanced Setup Menu
35
NOTE
It is very important to obtain the correct parameters from the system administrator or
ISP. The most common problem when establishing an IP connection is incorrect
configuration of the IP parameters and default gateway. Do not try to guess these
parameters.
SNMP M
ANAGER
T
ABLE
Select this option to add, clear, or delete parameters from the manager table. The manager table lists the SNMP
manager IP addresses and masks.
Simple Network Management Protocol (SNMP) is an application-layer protocol designed to facilitate the
exchange of management information between network devices. By using SNMP to access management
information data (such as packets per second and network error rates), network administrators can more easily
manage network performance and find and solve network problems.
TFTP (T
RIVIAL
F
ILE
T
RANSFER
P
ROTOCOL
)
TFTP is a file transfer protocol used for downloading boot code to diskless workstations.
TFTP is used in a server designated as the TFTP server. The server needs to provide concurrency to allow
multiple users to boot up simultaneously. To do this, TFTP creates a UDP port for each client. By creating a
UDP port, the different client input datagrams can be demultiplexed by the server’s UDP module.
Demultiplexing in the module increases the server efficiency.
One characteristic of TFTP is that it is not secure. There is no password or firewall associated with TFTP.
Anyone with the IP address of the TFTP server can enter the server and download files. Security can be
provided by creating a directory which contains only those files which you want to be downloaded. This
prevents access to any other files.
You must configure the following parameters in a TFTP server:
File Server IP Address
Select this parameter to enter the IP address of the TFTP server; for example, 192.168.10.11.
File Name
Select this parameter to enter the name and path of the file to be transferred; for example, c:\booting\boot.exe.
Retransmitting Timeout
Select this parameter to enter the amount of time that is allowed to pass before a file is retransmitted; for
example, 30 seconds.
Total Timeout
Select this parameter to enter the amount of time the Ethernet Extender should wait for an acknowledgment
from the TFTP server; for example, 60 seconds.
Summary of Contents for LB3104A series
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