All MIBs › COM21-HCXVLAN-MIB › hcxVlanIpBootpReplyFiltEnbl
hcxVlanIpBootpReplyFiltEnbl
Module: COM21-HCXVLAN-MIB
OID (symbolic): COM21-HCXVLAN-MIB::hcxVlanIpBootpReplyFiltEnbl
OID (numeric): 1.3.6.1.4.1.1141.2.81.1.1.16
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: Specifies whether BOOTP replies, or DHCPOFFER, or DHCPACK packets should be filtered on this VLAN. This filter is applicable to 100BT, and OC3 cards. It it not applicable to 10BT card. It filters traffic in the upstream direction. Default is true. This filter can also be enabled for a specific ComPort via the MIB attribute hcxStuIpBootpReplyFiltEnbl.
What is hcxVlanIpBootpReplyFiltEnbl?
This read-write true/false attribute, true by default and applicable only to 100BT and OC3 cards, filters BOOTP or DHCPOFFER/DHCPACK reply packets in the upstream direction, and can also be enabled per ComPort. An admin relies on it to stop a subscriber device from acting as a rogue DHCP server sending replies upstream. For example, an admin keeps this enabled to block a customer's misconfigured router from injecting bogus DHCP offers upstream toward the headend.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1141.2.81.1.1.16 snmpwalk -v2c -c public <target> COM21-HCXVLAN-MIB::hcxVlanIpBootpReplyFiltEnbl
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1141.2.81.1.1.16.1 snmpget -v2c -c public <target> COM21-HCXVLAN-MIB::hcxVlanIpBootpReplyFiltEnbl.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.1141.2.81.1.1.16.1 i <value>
Start monitoring Com21 ComController HCX VLAN management (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the COM21-HCXVLAN-MIB::hcxVlanIpBootpReplyFiltEnbl OID value, configure state conditions and alerts, and monitor any Com21 ComController HCX VLAN management (legacy) from a single console.
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 |
| 1.3.6.1.4.1.1141.2.81.1.1.16 | hcxVlanIpBootpReplyFiltEnbl | COM21-HCXVLAN-MIB |