All MIBs › COSINE-ORION-MIB › csOrionVrSpfTcpSeqCheck
csOrionVrSpfTcpSeqCheck
Module: COSINE-ORION-MIB
OID (symbolic): COSINE-ORION-MIB::csOrionVrSpfTcpSeqCheck
OID (numeric): 1.3.6.1.4.1.3085.3.1.6.20.1.1.4
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: If enabled, the tcp packets will be checked for validity of sequence number, this is done at init time, established state and close time.
What is csOrionVrSpfTcpSeqCheck?
This read-write enable/disable object controls whether the stateful packet filter validates TCP sequence numbers during connection setup, the established state, and connection close. An admin enables this as a security hardening measure to reject spoofed or out-of-window TCP packets, or disables it temporarily when troubleshooting an application whose TCP stack behaves non-standardly. For example, if a legacy application's connections are being unexpectedly reset, the admin might disable sequence checking temporarily to confirm whether strict validation is the cause.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.3085.3.1.6.20.1.1.4 snmpwalk -v2c -c public <target> COSINE-ORION-MIB::csOrionVrSpfTcpSeqCheck
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.3085.3.1.6.20.1.1.4.1 snmpget -v2c -c public <target> COSINE-ORION-MIB::csOrionVrSpfTcpSeqCheck.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.3085.3.1.6.20.1.1.4.1 i <value>
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> csOrionVrSpfTcpSeqCheck.1
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OID Breakdown
Upper-level ancestors (9 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 |
| 1.3.6.1.4.1.3085 | csRoot | COSINE-GLOBAL-REG |
| 1.3.6.1.4.1.3085.3 | csProduct | COSINE-GLOBAL-REG |
| 1.3.6.1.4.1.3085.3.1 | csOrionMIB | COSINE-GLOBAL-REG |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.3085.3.1.6 | csOrionServiceInfo | COSINE-ORION-MIB |
| 1.3.6.1.4.1.3085.3.1.6.20 | csOrionSpfInfo | COSINE-ORION-MIB |
| 1.3.6.1.4.1.3085.3.1.6.20.1 | csOrionVrSpfConfTable | COSINE-ORION-MIB |
| 1.3.6.1.4.1.3085.3.1.6.20.1.1 | csOrionVrSpfConfEntry | COSINE-ORION-MIB |
| 1.3.6.1.4.1.3085.3.1.6.20.1.1.4 | csOrionVrSpfTcpSeqCheck | COSINE-ORION-MIB |