All MIBs › CT-FASTPATH-DHCPSNOOPING-MIB › ctAgentDhcpSnoopingIfRateLimit
ctAgentDhcpSnoopingIfRateLimit
Module: CT-FASTPATH-DHCPSNOOPING-MIB
OID (symbolic): CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingIfRateLimit
OID (numeric): 1.3.6.1.4.1.52.4.2.35.1.1.4.1.3
Node type: OBJECT-TYPE
Type: Unsigned32
Access: read-write
Description: This object indicates rate limit value for DHCP Snooping purpose. If the incoming rate of DHCP packets exceeds the value of this object for consecutively burst interval seconds, DHCP packets will be dropped.
What is ctAgentDhcpSnoopingIfRateLimit?
This read-write Unsigned32, in packets per second from 0 to 300, sets the DHCP packet rate limit on an interface, beyond which packets are dropped for consecutive burst-interval seconds. An administrator uses this to prevent a DHCP flood, whether malicious or accidental, from overwhelming the snooping process or the DHCP server. For example, an admin might set ctAgentDhcpSnoopingIfRateLimit to 10 on user access ports to blunt a potential DHCP starvation attack from a compromised endpoint.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.35.1.1.4.1.3 snmpwalk -v2c -c public <target> CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingIfRateLimit
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.35.1.1.4.1.3.1 snmpget -v2c -c public <target> CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingIfRateLimit.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.52.4.2.35.1.1.4.1.3.1 i <value>
Start monitoring Cabletron/Enterasys FastPath switch (DHCP snooping) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CT-FASTPATH-DHCPSNOOPING-MIB::ctAgentDhcpSnoopingIfRateLimit OID value, configure state conditions and alerts, and monitor any Cabletron/Enterasys FastPath switch (DHCP snooping) 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 |
| 1.3.6.1.4.1.52.4.2.35 | ctDhcpSnoopingExpMib | CTRON-MIB-NAMES |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.52.4.2.35.1 | ctFastPathDHCPSnoopingMIB | CT-FASTPATH-DHCPSNOOPING-MIB |
| 1.3.6.1.4.1.52.4.2.35.1.1 | ctAgentDhcpSnoopingConfigGroup | CT-FASTPATH-DHCPSNOOPING-MIB |
| 1.3.6.1.4.1.52.4.2.35.1.1.4 | ctAgentDhcpSnoopingIfConfigTable | CT-FASTPATH-DHCPSNOOPING-MIB |
| 1.3.6.1.4.1.52.4.2.35.1.1.4.1 | ctAgentDhcpSnoopingIfConfigEntry | CT-FASTPATH-DHCPSNOOPING-MIB |
| 1.3.6.1.4.1.52.4.2.35.1.1.4.1.3 | ctAgentDhcpSnoopingIfRateLimit | CT-FASTPATH-DHCPSNOOPING-MIB |