NAME

snmp_wlan —

wireless networking module for bsnmpd(1)

LIBRARY

(begemotSnmpdModulePath."wlan" = /usr/lib/snmp_wlan.so)

DESCRIPTION

The snmp_wlan module implements a private BEGEMOT-WIRELESS-MIB, which allows management of virtual wireless interfaces. The MIB defines objects similar to the state data and configuration capabilities of ifconfig(8) for configuring virtual wireless interfaces. Therefore one should consider adding write communities or loading the snmp_wlan module on systems where security is crucial.

IMPLEMENTATION NOTES

A short description of the Tables and interesting objects in the MIB follows.

wlanInterfaceTable: The table is used for creation and deletion of virtual wireless interfaces. To add a new interface, a SET should be executed on the wlanIfaceName column with value the desired name of the interface. Next the parent interface must be set via wlanParentIfName column. Any optional parameters may be set via the wlanIfaceOperatingMode, wlanIfaceFlags, wlanIfaceBssid and wlanIfaceLocalAddress columns. To finally create the interface in the system, a SET with value of active(1) to wlanIfaceStatus column should be executed. To destroy a wireless interface a SET with value of destroy(6) to the relevant wlanIfaceStatus column should be executed.
wlanIfParentTable: The table contains information about the hardware capabilities of the parent of a wireless interface.
wlanIfaceConfigTable: The table is used to get or set various configuration parameters for a virtual wireless interface. Depending on the operating mode of the interface and the hardware capabilities of the underlying hardware interface, not all parameters and values may be supported.
wlanIfacePeerTable: The table contains information about the associated stations for interfaces operating as access points, or the stations identified as neighbors in the IBSS for interfaces operating in adhoc mode.
wlanIfaceChannelTable: Information about the active channels for the wireless interfaces in the system.
wlanIfRoamParamsTable: The parameters that govern the roaming operation on the wireless interfaces.
wlanIfTxParamsTable: The parameters that govern the transmit operation on the wireless interfaces.
wlanScanConfigTable: The table that contains a configuration for channel scanning initiated via SNMP.
wlanScanResultsTable: The table contains the scan results from the last scan for each wireless interface on the system.
wlanIfaceStatisticsTable: Summary statistics for each wireless interface on the system.
wlanWepInterfaceTable: WEP configuration for the wireless interfaces on the system.
wlanMACAccessControlTable: Access Control configuration for wireless interfaces operating as access points.
wlanMACAccessControlMACTable: The table with Access Control MAC entries for which the configured Access Control Policy on wireless interfaces operating in Host AP mode is applied. wlanMACAccessControlMACStatus column is used to add or delete MAC ACL entries. A set with value createAndGo(4) will add new entry, while with value destroy(6) will delete an existing one.
wlanMeshRoutingConfig: The subtree contains system configuration related to Wireless Mesh Routing.
wlanMeshInterfaceTable: The table contains information for wireless interfaces operating as wireless mesh points.
wlanMeshNeighborTable: The table contains information for the neighbors of wireless interfaces operating in mesh mode.
wlanMeshRouteTable: The mesh routing table for interfaces operating as mesh points, used for forwarding packets on a mesh network. wlanMeshRouteStatus column is used to add or delete entries in the mesh routing table for an interface. A set with value createAndGo(4) will add new entry, while with value destroy(6) will delete an existing one.
wlanMeshStatsTable: Summary statistics for each virtual wireless interface operating as mesh point.
wlanMeshHWMPConfig: The subtree contains system configuration related to Hybrid Wireless Mesh Protocol.
wlanHWMPInterfaceTable: The table contains HWMP information for wireless interfaces operating in mesh mode.
wlanMeshHWMPStatsTable: Summary statistics for HWMP operation on interfaces operating as mesh points.

RESTRICTIONS

Not all information or configuration in the MIBs is currently available in FreeBSD. The values of the following variables carry no information:

wlanStatsReset

FILES

/usr/share/snmp/defs/wlan_tree.def: The description of the MIB tree implemented by snmp_wlan.
/usr/share/snmp/mibs/BEGEMOT-WIRELESS-MIB.txt: The private BEGEMOT-WIRELESS-MIB that is implemented by this module.

AUTHORS

Shteryana Shopova <syrinx@FreeBSD.org>