All MIBs › COM21-HCXVLAN-MIB › hcxVlanIpArpFiltEnbl
hcxVlanIpArpFiltEnbl
Module: COM21-HCXVLAN-MIB
OID (symbolic): COM21-HCXVLAN-MIB::hcxVlanIpArpFiltEnbl
OID (numeric): 1.3.6.1.4.1.1141.2.81.1.1.12
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: Specifies whether ARP authentication filtering should be enabled on this VLAN. This filter is applicable to 10BT, 100BT, and OC3 cards. It filters traffic in the upstream direction. Default is false. This filter can also be enabled for a specific ComPort via the MIB attribute hcxStuIpArpFiltEnable.
What is hcxVlanIpArpFiltEnbl?
This read-write true/false attribute, false by default and applicable to 10BT, 100BT, and OC3 cards, enables upstream ARP authentication filtering on this VLAN, and it can also be set per ComPort via hcxStuIpArpFiltEnable. An admin enables it to block ARP spoofing attempts coming from subscriber devices. For example, an admin enables this VLAN-wide after detecting ARP spoofing attempts originating from a compromised modem on that VLAN.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1141.2.81.1.1.12 snmpwalk -v2c -c public <target> COM21-HCXVLAN-MIB::hcxVlanIpArpFiltEnbl
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1141.2.81.1.1.12.1 snmpget -v2c -c public <target> COM21-HCXVLAN-MIB::hcxVlanIpArpFiltEnbl.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.1141.2.81.1.1.12.1 i <value>
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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 |
| 1.3.6.1.4.1.1141 | com21 | COM21-HCX-MIB |
| 1.3.6.1.4.1.1141.2 | com21Hcx | COM21-HCX-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1141.2.81 | com21HcxVlanCtrlGroup | COM21-HCXVLAN-MIB |
| 1.3.6.1.4.1.1141.2.81.1 | com21HcxVlanCtrlTable | COM21-HCXVLAN-MIB |
| 1.3.6.1.4.1.1141.2.81.1.1 | com21HcxVlanCtrlEntry | COM21-HCXVLAN-MIB |
| 1.3.6.1.4.1.1141.2.81.1.1.12 | hcxVlanIpArpFiltEnbl | COM21-HCXVLAN-MIB |