User guide

Chapter 6: Network Menu and Forms 37
You can send the syslog messages:
• To the console port for logging the messages even if no user is logged in
• To all sessions where the root user is logged in
• To one or more syslog servers
You can add or remove syslog servers.
The bottom part of the form has filtering rules for specifying which types of messages are
forwarded based on the following criteria:
• Severity level: Emergency, Alert, Critical, Error, Warning, Notice, Info, Debug.
• Category CAS log; Data Buffering log; Web log or System log.
To configure syslogging for serial ports and specify message filtering:
1. Go to Network - Syslog in Expert mode. The Syslog form appears.
2. Select a facility number for messages generated by serial ports by selecting the number from
the CAS Ports Facility pull-down menu.
3. Select a destination for the syslog messages by clicking the checkbox next to one or all of the
options: Console, Root User or Server.
4. Add a syslog server to the Syslog Servers list, by entering its IP address in the New Syslog
Server field and clicking the Add-- button.
5. Configure the message filtering as per your requirements.
6. Click apply changes.
SNMP
Simple Network Management Protocol (SNMP) is a set of protocols for managing complex
networks. SNMP works by sending messages called protocol data units (PDUs) to different parts of
a network. SNMP-compliant devices (agents), store data about themselves in Management
Information Bases (MIBs) and return this data to the SNMP requesters.
The console server SNMP agent supports SNMPv1/v2 and v3. To use SNMP v1 or v2, you need to
specify a community name, a source IP address or a range of IP addresses, an object ID (OID) and
permission (read-write or read-only). SNMP v3 requires: user name, password, OID
and permission.
Selecting Network - SNMP displays the form shown in the following figure.