All MIBs › IPV6-TCP-MIB › ipv6TcpConnState
ipv6TcpConnState
Module: IPV6-TCP-MIB
OID (symbolic): IPV6-TCP-MIB::ipv6TcpConnState
OID (numeric): 1.3.6.1.2.1.6.16.1.6
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: The state of this TCP connection.
The only value which may be set by a management station is deleteTCB(12). Accordingly, it is appropriate for an agent to return an error response ('badValue' for SNMPv1, 'wrongValue' for SNMPv2) if a management station attempts to set this object to any other value.
If a management station sets this object to the value deleteTCB(12), then this has the effect of deleting the TCB (as defined in RFC 793) of the corresponding connection on the managed node, resulting in immediate termination of the connection.
As an implementation-specific option, a RST segment may be sent from the managed node to the other TCP endpoint (note however that RST segments are not sent reliably).
This object is obsoleted by TCP-MIB::tcpConnectionState.
What is ipv6TcpConnState?
This object reports the current state of an IPv6 TCP connection, such as listen, synSent, established, or closeWait, following the standard TCP state machine; the MIB itself marks this object obsolete in favor of newer TCP MIBs. The only state an admin can actively set is deleteTCB(12), which forcibly tears down the connection's control block — useful for clearing a stuck or hung TCP session. An admin troubleshooting a connection stuck in closeWait might write deleteTCB(12) to that row to force it closed.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.6.16.1.6 snmpwalk -v2c -c public <target> IPV6-TCP-MIB::ipv6TcpConnState
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.6.16.1.6.1 snmpget -v2c -c public <target> IPV6-TCP-MIB::ipv6TcpConnState.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.2.1.6.16.1.6.1 i <value>
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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 |
| 1.3.6.1.2 | mgmt | APERTUS-NPG-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| 1.3.6.1.2.1.6 | tcp | CHECKPOINT-MIB-2 |
| 1.3.6.1.2.1.6.16 | rlTcpSessionTable | CISCOSB-TCPSESSIONS |
| 1.3.6.1.2.1.6.16.1 | rlTcpSessionEntry | CISCOSB-TCPSESSIONS |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.6.16.1.6 | ipv6TcpConnState | IPV6-TCP-MIB |