All MIBs › A3COM-HUAWEI-PORT-SECURITY-MIB › h3cSecureNeedToKnowMode
h3cSecureNeedToKnowMode
Module: A3COM-HUAWEI-PORT-SECURITY-MIB
OID (symbolic): A3COM-HUAWEI-PORT-SECURITY-MIB::h3cSecureNeedToKnowMode
OID (numeric): 1.3.6.1.4.1.43.45.1.10.2.26.1.2.1.1.2
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: Attribute to determine which frames are to be forwarded to this port intact.
1 - Need To Know is not available. 2 - All frames. 3 - Frames addressed to the authorised devices only. 4 - Frames addressed to the authorised devices, plus all broadcast frames. 5 - Frames addressed to the authorised devices, plus all broadcast and multicast frames. 6 - As 3 and cannot be changed. 7 - As 4 and cannot be changed. 8 - As 5 and cannot be changed.
If this object returns 1,6,7 or 8, it means that the Need To Know configuration cannot be changed, and any attempt to write to this object will cause an error.
What is h3cSecureNeedToKnowMode?
This OID controls which frames the port forwards: all frames, only frames to authorized devices, or frames including broadcast/multicast. This filters what traffic reaches connected devices based on their authorization level. Example: setting to "authorized devices plus broadcast" allows an authorized PC to receive ARP replies but not unicast frames from unauthorized devices.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.43.45.1.10.2.26.1.2.1.1.2 snmpwalk -v2c -c public <target> A3COM-HUAWEI-PORT-SECURITY-MIB::h3cSecureNeedToKnowMode
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.43.45.1.10.2.26.1.2.1.1.2.1 snmpget -v2c -c public <target> A3COM-HUAWEI-PORT-SECURITY-MIB::h3cSecureNeedToKnowMode.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.43.45.1.10.2.26.1.2.1.1.2.1 i <value>
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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 |
| 1.3.6.1.4.1.43 | a3Com | A3COM-AUDL-R1-MIB |
| 1.3.6.1.4.1.43.45 | jv_mib | A3COM-HUAWEI-OID-MIB |
| 1.3.6.1.4.1.43.45.1 | huawei | A3COM-HUAWEI-OID-MIB |
| 1.3.6.1.4.1.43.45.1.10 | h3c | A3COM-HUAWEI-OID-MIB |
| 1.3.6.1.4.1.43.45.1.10.2 | h3cCommon | A3COM-HUAWEI-OID-MIB |
| 1.3.6.1.4.1.43.45.1.10.2.26 | h3cPortSecurity | A3COM-HUAWEI-OID-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.43.45.1.10.2.26.1 | h3cPortSecurityMIB | A3COM-HUAWEI-PORT-SECURITY-MIB |
| 1.3.6.1.4.1.43.45.1.10.2.26.1.2 | h3cPortSecurityTables | A3COM-HUAWEI-PORT-SECURITY-MIB |
| 1.3.6.1.4.1.43.45.1.10.2.26.1.2.1 | h3cSecurePortTable | A3COM-HUAWEI-PORT-SECURITY-MIB |
| 1.3.6.1.4.1.43.45.1.10.2.26.1.2.1.1 | h3cSecurePortEntry | A3COM-HUAWEI-PORT-SECURITY-MIB |
| 1.3.6.1.4.1.43.45.1.10.2.26.1.2.1.1.2 | h3cSecureNeedToKnowMode | A3COM-HUAWEI-PORT-SECURITY-MIB |