Specifications

Chapter 2 Provisioning
18
b.) Trap Management
From the SNMP Manager Configuration Menu, select 'N' for trap management configuration.
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*** CTC UNION TECHNOLOGIES CO., LTD. ***
*** FRM220 NMC VER. 1.95 ***
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<< Trap Configuration Setup of Chassis 0 >>
Trap Receiver IP Community String
================ ================
#1 192.168.1.100 private
#2 --- ---
#3 --- ---
#4 --- ---
#5 --- ---
#6 --- ---
#7 --- ---
#8 --- ---
Command Function Key:
<1>~<8>: Edit trap receiver #1 to #8 setting.
<D> : Delete all settings.
<N> : Go to Manager Configuration menu.
<X> : Go to Syslog Configuration menu.
<S> : Confirm above setting and restart SNMP.
<ESC> : Back to main menu without modification.
Please select an item.
The following are descriptions of the function keys available and the actions which they perform.
1~8: Use these keys to select any one of eight trap destination addresses.
D: Use this to clear all settings.
N: Use this key to go back to manager configuration.
X: Use this key to go to the Syslog server setting menu.
S: Use this key to confirm settings and restart the SNMP daemon.
ESC: This key will leave the setting menu without saving any changes.
Conclusion
The community strings act like passwords in dealing with the device via SNMP protocol. By changing the
community strings for read / write ('private' in these examples) and read only (public) access, and assigning a
community string to an access IP, an administrator can control access to the FRM220. Community string names
are case sensitive, therefore 'puBlic', 'Public' and 'public' are all different strings.
Now that both the 'System' and 'Manager' settings are complete, the FRM220 is ready to be managed remotely
over an IP network. The system provides a Telnet server feature that allows login over TCP/IP networks and
provides a menu display almost identical to that of the serial console mode. All functions available from Console
are available in the Telnet session.
The FRM220-NMC is supplied with an enterprise MIB file (Management Information Base) that can be
compiled into any standard SNMP network management software. The MIB file complies with MIB-II and ANS.1
standards. The SNMP protocol used in the FRM220-NMC is compliant with both SNMP V1 and SNMP V2C. The
kernel in the FRM220-NMC is capable of supporting SNMP V3, however as of this writing that support has not yet
been enabled. The major difference between SNMP V2C and V3 is the use of encryption layer for SNMP traffic.
This requires the passing of public keys and key checks to ensure that both agent and manager are who they really
say they are. It also ensures that should it be intercepted by a sniffer, the SNMP traffic is encrypted and not sent in
plain text format, making a "man-in-the-middle" attack less likely.
Set up to 8 trap receivers,
entering their IP addresses.