All MIBs › IEEE8021-SECY-MIB › secyCipherSuiteProtectionOffset
secyCipherSuiteProtectionOffset
Module: IEEE8021-SECY-MIB
OID (symbolic): IEEE8021-SECY-MIB::secyCipherSuiteProtectionOffset
OID (numeric): 1.0.8802.1.1.3.1.1.6.1.6
Node type: OBJECT-TYPE
Type: Integer32
Access: read-create
Description:
The confidentiality protection offset options of this cipher suite. Options should depend on the choice of secyCipherSuiteProtection. If the value of secyCipherSuiteProtection only turns on integrity bit, users can only choose 0 byte for this object. If the value of secyCipherSuiteProtection only turns on integrity and confidentiality bits, users can only choose 0 byte for this object. If the value of secyCipherSuiteProtection only turns on integrity and offsetConfidentiality bits, users can choose 30 or 50 bytes for this object. If the value of secyCipherSuiteProtection turns on integrity and confidentiality and offsetConfidentiality bits, users can choose 0 or 30 or 50 bytes for this object.
What is secyCipherSuiteProtectionOffset?
This setting determines how many bytes at the start of each encrypted frame are left unencrypted (offset), depending on the cipher suite's integrity and confidentiality protection levels. Different cipher options require different offset values (typically 0 bytes for most modern security profiles). A security administrator configuring 802.1AE MACsec ports would set this based on the chosen cipher suite to ensure frames are protected according to the customer's security policy.
OID Breakdown
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.0 | std | START-MIB |
| 1.0.8802 | iso8802 | START-MIB |
| 1.0.8802.1 | ieee802dot1 | START-MIB |
| 1.0.8802.1.1 | ieee802dot1mibs | START-MIB |
| 1.0.8802.1.1.3 | ieee8021SecyMIB | IEEE8021-SECY-MIB |
| 1.0.8802.1.1.3.1 | secyMIBObjects | IEEE8021-SECY-MIB |
| 1.0.8802.1.1.3.1.1 | secyMgmtMIBObjects | IEEE8021-SECY-MIB |
| 1.0.8802.1.1.3.1.1.6 | secyCipherSuiteTable | IEEE8021-SECY-MIB |
| 1.0.8802.1.1.3.1.1.6.1 | secyCipherSuiteEntry | IEEE8021-SECY-MIB |
| 1.0.8802.1.1.3.1.1.6.1.6 | secyCipherSuiteProtectionOffset | IEEE8021-SECY-MIB |