All MIBs › HP-ICF-DHCP-SNOOP-MIB › hpicfDhcpSnoopCSMACMismatches
hpicfDhcpSnoopCSMACMismatches
Module: HP-ICF-DHCP-SNOOP-MIB
OID (symbolic): HP-ICF-DHCP-SNOOP-MIB::hpicfDhcpSnoopCSMACMismatches
OID (numeric): 1.3.6.1.4.1.11.2.14.11.5.1.34.1.2.1.2
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: Number of snooped DHCP client packets that were discarded because the MAC source address of the packet did not match the chaddr.
What is hpicfDhcpSnoopCSMACMismatches?
This counts DHCP client packets discarded because the source MAC address didn't match the chaddr field inside the DHCP header -- the check enabled by hpicfDhcpSnoopVerifyMac. A rising count can indicate spoofing attempts or a misbehaving client stack on the network.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.11.2.14.11.5.1.34.1.2.1.2 snmpwalk -v2c -c public <target> HP-ICF-DHCP-SNOOP-MIB::hpicfDhcpSnoopCSMACMismatches
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.11.2.14.11.5.1.34.1.2.1.2.1 snmpget -v2c -c public <target> HP-ICF-DHCP-SNOOP-MIB::hpicfDhcpSnoopCSMACMismatches.1
Start monitoring HP ProCurve switch (DHCP Snooping) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the HP-ICF-DHCP-SNOOP-MIB::hpicfDhcpSnoopCSMACMismatches OID value, configure state conditions and alerts, and monitor any HP ProCurve switch (DHCP Snooping) from a single console.
OID Breakdown
Upper-level ancestors (12 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 |
| 1.3.6.1.4.1.11 | hp | CLJ8500-MIB |
| 1.3.6.1.4.1.11.2 | nm | CLJ8500-MIB |
| 1.3.6.1.4.1.11.2.14 | icf | CONFIG-MIB |
| 1.3.6.1.4.1.11.2.14.11 | hpicfObjects | CONFIG-MIB |
| 1.3.6.1.4.1.11.2.14.11.5 | hpicfSwitch | CONFIG-MIB |
| 1.3.6.1.4.1.11.2.14.11.5.1 | hpSwitch | CONFIG-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.11.2.14.11.5.1.34 | hpicfIpDhcpSnoop | HP-ICF-DHCP-SNOOP-MIB |
| 1.3.6.1.4.1.11.2.14.11.5.1.34.1 | hpicfIpDhcpSnoopObjects | HP-ICF-DHCP-SNOOP-MIB |
| 1.3.6.1.4.1.11.2.14.11.5.1.34.1.2 | hpicfIpDhcpSnoopStatus | HP-ICF-DHCP-SNOOP-MIB |
| 1.3.6.1.4.1.11.2.14.11.5.1.34.1.2.1 | hpicfDhcpSnoopGlobalStats | HP-ICF-DHCP-SNOOP-MIB |
| 1.3.6.1.4.1.11.2.14.11.5.1.34.1.2.1.2 | hpicfDhcpSnoopCSMACMismatches | HP-ICF-DHCP-SNOOP-MIB |