All MIBs › CT-FASTPATH-DHCPSERVER-MIB › ctAgentDhcpServerNAKMessagesSent
ctAgentDhcpServerNAKMessagesSent
Module: CT-FASTPATH-DHCPSERVER-MIB
OID (symbolic): CT-FASTPATH-DHCPSERVER-MIB::ctAgentDhcpServerNAKMessagesSent
OID (numeric): 1.3.6.1.4.1.52.4.2.32.1.1.13
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The no. of DHCP messages of type DHCPNAK that have been sent by the DHCP server.
What is ctAgentDhcpServerNAKMessagesSent?
This read-only Counter32 tracks how many DHCPNAK messages the server has sent, rejecting a client's requested lease or renewal. An administrator watches this counter because a rising number of NAKs often signals clients requesting addresses outside the current pool, such as after a subnet renumbering. For example, a spike in ctAgentDhcpServerNAKMessagesSent right after changing the pool's IP range would indicate roaming clients still trying to renew leases from the old range.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.32.1.1.13 snmpwalk -v2c -c public <target> CT-FASTPATH-DHCPSERVER-MIB::ctAgentDhcpServerNAKMessagesSent
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.32.1.1.13.1 snmpget -v2c -c public <target> CT-FASTPATH-DHCPSERVER-MIB::ctAgentDhcpServerNAKMessagesSent.1
Start monitoring Enterasys/Cabletron FastPath switch (DHCP server) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CT-FASTPATH-DHCPSERVER-MIB::ctAgentDhcpServerNAKMessagesSent OID value, configure state conditions and alerts, and monitor any Enterasys/Cabletron FastPath switch (DHCP server) from a single console.
OID Breakdown
Upper-level ancestors (10 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 | CTRON-AP3000-MIB |
| 1.3.6.1.4.1.52.4.2 | ctronExp | CTRON-MIB-NAMES |
| 1.3.6.1.4.1.52.4.2.32 | ctDhcpServerExpMib | CTRON-MIB-NAMES |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.52.4.2.32.1 | ctFastPathDHCPServerMIB | CT-FASTPATH-DHCPSERVER-MIB |
| 1.3.6.1.4.1.52.4.2.32.1.1 | ctAgentDhcpServerGroup | CT-FASTPATH-DHCPSERVER-MIB |
| 1.3.6.1.4.1.52.4.2.32.1.1.13 | ctAgentDhcpServerNAKMessagesSent | CT-FASTPATH-DHCPSERVER-MIB |