All MIBs › ACLMGMT-MIB › swCpuAclIpRuleUserMask
swCpuAclIpRuleUserMask
Module: ACLMGMT-MIB
OID (symbolic): ACLMGMT-MIB::swCpuAclIpRuleUserMask
OID (numeric): 1.3.6.1.4.1.171.12.9.5.2.1.14
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-create
Description: Specifies that the rule applies to the IP protocol ID and the range of options behind the IP header.
What is swCpuAclIpRuleUserMask?
This OID stores a 20-byte binary mask that defines which parts of the IP header and options the rule should examine, beyond just the basic protocol ID. Network engineers use this for granular packet matching, such as filtering based on IP option flags or specific header fields. For example, a specific mask pattern could identify packets with the IP strict routing option set, which might be a sign of network reconnaissance.
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 |
| 1.3.6.1.4.1.171 | d_link | DE1500-MIB |
| 1.3.6.1.4.1.171.12 | dlink_common_mgmt | DLINK-ID-REC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.171.12.9 | swAclMgmtMIB | ACLMGMT-MIB |
| 1.3.6.1.4.1.171.12.9.5 | swCpuAclRuleMgmt | ACLMGMT-MIB |
| 1.3.6.1.4.1.171.12.9.5.2 | swCpuAclIpRuleTable | ACLMGMT-MIB |
| 1.3.6.1.4.1.171.12.9.5.2.1 | swCpuAclIpRuleEntry | ACLMGMT-MIB |
| 1.3.6.1.4.1.171.12.9.5.2.1.14 | swCpuAclIpRuleUserMask | ACLMGMT-MIB |