All MIBs › CTRON-DHCP-MIB › ctDhcpIfAddressesFree
ctDhcpIfAddressesFree
Module: CTRON-DHCP-MIB
OID (symbolic): CTRON-DHCP-MIB::ctDhcpIfAddressesFree
OID (numeric): 1.3.6.1.4.1.52.4.2.2.2.3.1.2.12.2.2.1.1.10
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: This value is the number of IP addresses that are currently available for distribution by this interface of the DHCP server.
What is ctDhcpIfAddressesFree?
ctDhcpIfAddressesFree is a read-only integer giving the number of IP addresses currently available for distribution by this interface of the DHCP server. An admin watches this to get early warning of address exhaustion on a specific subnet before clients actually start failing to obtain a lease. For example, seeing ctDhcpIfAddressesFree drop to single digits on a growing office subnet would prompt the admin to widen that interface's address range via ctDhcpIfHighestAddress before it runs out entirely.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.2.2.3.1.2.12.2.2.1.1.10 snmpwalk -v2c -c public <target> CTRON-DHCP-MIB::ctDhcpIfAddressesFree
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.2.2.3.1.2.12.2.2.1.1.10.1 snmpget -v2c -c public <target> CTRON-DHCP-MIB::ctDhcpIfAddressesFree.1
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OID Breakdown
Upper-level ancestors (15 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 |
| 1.3.6.1.4.1.52 | cabletron | Cabletron-MIB |
| 1.3.6.1.4.1.52.4 | mibs | CT-PRIORITY-QUEUING |
| 1.3.6.1.4.1.52.4.2 | ctronExp | CT-PRIORITY-QUEUING |
| 1.3.6.1.4.1.52.4.2.2 | ctronRouterExp | ROUTER-OIDS |
| 1.3.6.1.4.1.52.4.2.2.2 | nwRouter | ROUTER-OIDS |
| 1.3.6.1.4.1.52.4.2.2.2.3 | nwRtrProtoSuites | ROUTER-OIDS |
| 1.3.6.1.4.1.52.4.2.2.2.3.1 | nwIpRouter | CTRON-IP-ROUTER-MIB |
| 1.3.6.1.4.1.52.4.2.2.2.3.1.2 | nwIpComponents | CTRON-IP-ROUTER-MIB |
| 1.3.6.1.4.1.52.4.2.2.2.3.1.2.12 | nwIpClientServices | CTRON-IP-ROUTER-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.52.4.2.2.2.3.1.2.12.2 | ctDhcp | CTRON-DHCP-MIB |
| 1.3.6.1.4.1.52.4.2.2.2.3.1.2.12.2.2 | ctDhcpInterfaceConfig | CTRON-DHCP-MIB |
| 1.3.6.1.4.1.52.4.2.2.2.3.1.2.12.2.2.1 | ctDhcpServerIfTable | CTRON-DHCP-MIB |
| 1.3.6.1.4.1.52.4.2.2.2.3.1.2.12.2.2.1.1 | ctDhcpServerIfEntry | CTRON-DHCP-MIB |
| 1.3.6.1.4.1.52.4.2.2.2.3.1.2.12.2.2.1.1.10 | ctDhcpIfAddressesFree | CTRON-DHCP-MIB |