System information

SNMP on the OnBoard
28 AlterPath OnBoard Administrator’s Guide
Traps are handled the three following ways:
• When access is through a VPN tunnel, the public-side computer directly
receives SNMP traps from the connected device.
• SNMP traps can be forwarded to SNMP agents based on the source
address of the trap.
• Locally, traps are sent to the syslog facility, which may use the
information to send notifications.
Before enabling SNMP, depending on the version of SNMP in use, the
administrator needs some or all of the information in the following table.
Table 1-13: Values for Configuring SNMP
Values Description
SysContact
Email address of the OnBoard administrator
SysLocation
Location of the OnBoard
OID
Object Identifier. A unique indentifier for each object in an SNMP
MIB. The OID naming scheme is in the form of an inverted tree
with branches pointing downward. The OID naming scheme is
governed by the Internet Engineering Task Force (IETF), which
grants authority for parts of the OID name space to individual
organizations. Cyclades has the authority to assign OIDs that can
be derived by branching downward from the node in the MIB
name tree that starts at 1.3.6.1.4.1.4413.
SNMP version also
called protocol
• v1—Uses a community string match for authentication
• v2c—Uses a community string match for authentication
• v3—Uses a username for authentication. In addition to the
username, an optional authentication password may be used. An
encryption password also may be used for encrypting traffic.
Cyclades recommends that both authentication and encryption
be used to maximize the security of data and commands.
Available authentication methods are MD5 or SHA. Available
encryption methods are DES and AES.