SNMP

SNMP (Simple Network Management Protocol) is a standard for managing IP devices, retrieving data from each device on a network and sending it to designated hosts. In its full implementation, SNMP enables both read and write access. In GNAT Box System Software, the SNMP facility is read-only. It does not allow the write access needed for control and configuration. The data, contained in the MIB (Management Information Base) and organized in report form, helps the administrator ensure optimal performance in the managed devices.

SNMP on GNAT Box systems does not utilize a custom MIB. MIBs supplied with your third-party SNMP toolkit will function with the GTA Firewall.

SNMP version 2 provides enhancements including security and an RMON (Remote Monitoring) MIB, which provides continuous feedback without being queried by the SNMP facility.

SNMP version 3 introduced a revised nomenclature for SNMP, a new access method using authentication, and the ability to encrypt SNMP data packets.

SNMP requires appropriate Remote Access Filters. Auto-configure the filter set or create appropriate filters, then customize and enable the desired filters.

Enable Select to enable the SNMP facility. Disabled by default.
 

Contact Email address of the administrator.

Location User-defined description of the administrator's location.
 

Version 2 Configuration

Enable Enable SNMP version 2.

Community Essentially, a password. With this password, those with SNMP access can see SNMP information and/or receive SNMP trap notifications. In the full implementation of SNMP, there are three levels of community: read access, read-write access, and trap notification. Members of a community defined by this password can access SNMP information at the level allowed in that community.

Version 3 Configuration

Enable Enable SNMP version 3.

User ID User name assigned separately from other user authorization names. An extra layer of protection against impolite and undesirable interest in your network.
 

Password Password for this extra authorization level. This is an encrypted password.
 

Security Level Security levels in the SNMP facility allow:
AuthPriv (Authentication, Privacy):
Access to SNMP information only with both authentication and data encryption of all SNMP packets (privacy).
AuthNoPriv (Authentication, No Privacy):
Access to SNMP information with only authentication.

¨ Warning:
GTA strongly recommends restricting SNMP access to specific hosts in order to reduce dissemination of information about the network. It is important to allow access to the information only from designated, secure hosts because the data is transmitted in clear (non-encrypted) text.

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