SNMP Tab

The SNMP tab specifies the interval for SNMP timed status indicator traps and you can add, edit, or delete SNMP trap receivers.

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Note -

Use the Action field of the packet-filtering Rule Definition dialog box to specify actions that generate SNMP alerts. The machine that receives SNMP trap alerts must not be a remote Administration Station.

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The following shows the SNMP tab of the Screen dialog box.

The following table describes the controls for the SNMP tab on the Screen dialog box.

Table 2-15 Controls for the SNMP Tab of the Screen Dialog Box

Control	Description
Name	Specifies a name for the Screen object.
Description	(Optional) Provides a brief description of the Screen object.
SNMP timer interval (in minutes)	Specifies in minutes when an SNMP trap is emitted. Specifying a time here turns on the timed status indicator. Specify the time in 1-minute increments. If you do not set the interval as part of the screen object's SNMP_TIMER, these traps are not sent. You cannot configure this trap.
SNMP Receivers	Displays the list of SNMP receivers. You are limited to five receivers.
Add/Delete (Name/IP address)	Specifies the name or the IP address of the SNMP receiver that you want to add to list when you click the Add button. Specifies the name or the IP address of the SNMP receiver that you want to delete when you click the Delete button.
Add	Adds the SNMP receiver specified in the Add/Delete (Name/IP address) field to the list of SNMP receivers shown in the SNMP Receivers field.
Delete	Deletes the SNMP receiver specified in the Add/Delete (Name/IP address) field from the list of SNMP receivers shown in the SNMP Receivers field. Deletes the SNMP receiver highlighted in the SNMP Receivers field.
OK Button	Stores the new or changed information and makes the Save Changes command button active.
Cancel Button	Cancels any new or changed information
Help Button	Calls up the page of online help for this common object.

The following SNMP traps are supported:

• As an action on a packet that matches a particular rule

• As a default drop action on an interface

• Time status indicator traps

The first two types include the following data:

• interface - The SunScreen network interface number on which the packet was received.

• interfaceName - The SunScreen network interface name on which the packet was received.

• errorReason - The reason the alert was generated. (See the sunscreen.mib file for a complete list of reasons.)

• packetLength - The actual length of the packet in bytes.

• lengthLogged - The length of the data logged in bytes.

• packetData - The packet data.

The SNMP timed status indicator trap uses the same receivers database as other types of SNMP traps. There is only one database with a maximum of five receivers. These receivers are specified as variable to the screen object.

To activate the timed status indicator traps, set the SNMP timer interval.

The following data are in the SNMP timed status indicator. These data cannot be modified and new data cannot be added:

• cpuUsage - Average percentile CPU usage

• memoryAvail - Current swap space available, in kilobytes

• swapIn - Current swap ins

• swapOut - Current swap outs

• scanRate - Current scan rate

• tcpUsage - Current number TCP connections in the SunScreen state table

• ipUsage - Current number IP connections in the SunScreen state table

• udpUsage - Current number UDP connections in the SunScreen state table

• rootUsage - Disk usage of the root partition, /

• varUsage - Disk usage of the var partition, /var

• etcUsage - Disk usage of the etc partition, /etc

• tmpUsage - Disk usage at the tmp partition, /tmp

Only these SNMP traps are supported. No get or set operations are supported.