peer_encaps - Simple Network Management Protocol Agent Encapsulator
/usr/etc/peer_encaps [ -t trapPort ]
[ -s sendPort ]
[ -h host ]
[ -p port ]
[ -w wait ]
[ -c configFile ]
peer_encaps is a daemon which provides a way to encapsulate proprietary
SNMP agents, and an integrated environment for hosts that also run an
off-the-shelf or custom, non-extensible SNMP Agent or proxy.
The peer_snmpd(1m) daemon implements the Simple Network Management
Protocol (SNMP). Since only a single SNMP Agent can be listening to the
standard SNMP port (UDP port 161), this limits a Manager to access only
variables associated with one agent. The peer_encaps daemon provides a
mechanism to overcome this problem.
The peer_snmpd agent is configured to listen at UDP port 161, so that it
receives ALL SNMP queries. The other proprietary SNMP Agents are invoked
listening at alternate ports, not at 161. The peer_encaps daemon is
configured to recognize these SNMP Agents, the alternate port number at
which they are listening, and the sub-trees (a sub-tree is a set of MIB
variables subordinate to a node in the naming tree) they are managing.
When the peer_encaps daemon is started up, it reads a configuration file
containing all this information, and connects to the eer_snmpd
daemon, informing about these sub-trees.
When the peer_snmpd daemon receives a SNMP request corresponding to a
subtree associated with an encapsulated agent, it passes on them to the
peer_encaps daemon, which converts the requests into SNMPv1 packets, and
sends the packets to the specific Agent at the specific alternate port.
The reverse is true for the responses and traps.
The peer_snmpd and peer_encaps daemons use SMUX protocol to communicate
between each other. Please refer to RFC 1227 for more information on the
The incoming trap port where peer_encaps listens to receive SNMP
traps sent by encapsulated agents.
Default : no traps forwarded
The port from which peer_encaps sends requests to the encapsulated
agents, and to which the encapsulated agents send their responses.
Default : Assigned by the host
The address of the host where the peer_snmpd daemon is running,
normally the same host where the peer_encaps daemon is running.
Example : -h 126.96.36.199
Default : localhost
The SMUX port number to which peer_encaps sends its SMUX traffic.
Default : /etc/services SMUX port, if provided ; else 199.
The timeout in seconds, for the SNMP response from the encapsulated
Default : 2 seconds
The full path name of the configuration file. For details on the
format of this configuration file, please see peer_encaps_config(4).
Default : /etc/peer_encaps_config
peer_snmpd(1m), peer_snmpd_config(4), peer_encaps_config(4)
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