All MIBs › WL400-SNMPGEN-MIB › snmpGenChangeIPAddress
snmpGenChangeIPAddress
Module: WL400-SNMPGEN-MIB
OID (symbolic): WL400-SNMPGEN-MIB::snmpGenChangeIPAddress
OID (numeric): 1.3.6.1.4.1.232.144.1.2.6
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-write
Description: This object is used to change the fixed or 'remembered' IP address of an Access Point. When there is a DHCP/BOOTP server on the network, this variable is not needed. When there is no DHCP/BOOTP server for the IP subnet, the Access Point will try to use the IP address gotten from a previous BOOTP reply (which gives an infinite lease) or an infinite DHCP lease. When there was no previous BOOTP reply, the Access Point can be given an IP address using this variable.
Also when the current IP address of the Access Point is invalid for the current IP subnet, this variable can be set by sending an SNMP SET request to the multicast address 224.0.1.43. The MAC address included here ensures that only the right Access Point will accept the SET Request.
The IP address given through this variable is considered an infinite lease by the Access Point.
The format of this variable is as follows:
MAC Address: 6 octets IP Address: 4 octets (network byte order) IP Subnet Mask: 4 octets (network byte order) IP Default Router: 4 octets (network byte order)
What is snmpGenChangeIPAddress?
This read-write value changes the fixed or remembered IP address of the Access Point, encoded as a MAC address (6 octets) followed by an IP address, subnet mask, and default router (4 octets each in network byte order), and is not needed when a DHCP/BOOTP server is present on the network; it can also be set via an SNMP SET to the multicast address 224.0.1.43, with the embedded MAC address ensuring only the intended device accepts the change. An admin uses this to manually assign an IP configuration to an Access Point that has no DHCP/BOOTP server available, or to fix an Access Point whose current address is invalid for its subnet, using the multicast mechanism if the device can't otherwise be reached. For example, an admin recovering an Access Point stranded on the wrong subnet would send an SNMP SET of this object to the multicast address 224.0.1.43, embedding the target device's MAC address to ensure only that specific unit accepts the new IP configuration.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.232.144.1.2.6 snmpwalk -v2c -c public <target> WL400-SNMPGEN-MIB::snmpGenChangeIPAddress
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.232.144.1.2.6.1 snmpget -v2c -c public <target> WL400-SNMPGEN-MIB::snmpGenChangeIPAddress.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.232.144.1.2.6.1 s <value>
Start monitoring Compaq WL400 wireless LAN adapter (SNMP community/trap-destination/lock-status config status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the WL400-SNMPGEN-MIB::snmpGenChangeIPAddress OID value, configure state conditions and alerts, and monitor any Compaq WL400 wireless LAN adapter (SNMP community/trap-destination/lock-status config status) from a single console.
OID Breakdown
Upper-level ancestors (8 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.232 | compaq | COMPAQ-ID-REC-MIB |
| 1.3.6.1.4.1.232.144 | wl400Generic | WL400-GLOBAL-REG |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.232.144.1 | snmpGenMIB | WL400-SNMPGEN-MIB |
| 1.3.6.1.4.1.232.144.1.2 | snmpGenObjs | WL400-SNMPGEN-MIB |
| 1.3.6.1.4.1.232.144.1.2.6 | snmpGenChangeIPAddress | WL400-SNMPGEN-MIB |