straps(8) Tnm Tcl Extension straps(8)__________________________________________________________________________________________________________________________________________________NAME
straps - A simple SNMP trap multiplexer.
SYNOPSIS
straps [ port ]
_________________________________________________________________DESCRIPTION
The straps trap daemon listens on the snmp-trap port (usually port 162/udp) for incoming SNMP trap or inform messages and forwards them to
all connected clients (like scotty). The optional port argument allows to use the straps daemon to forward messages received on a non stan-
dard SNMP trap port. However, port numbers below 1024 will be rejected.
Clients connect to the straps daemon by opening the AF_UNIX domain stream socket /tmp/.straps-port. Thus, the default AF_UNIX domain stream
socket is named /tmp/.straps-162.
Received messages are forwarded using the following format:
4 byte IP address of the sender (network-byte-order).
2 byte Port number of the sender (network byte order).
4 byte Length of the trap message (host-byte-order).
n bytes The trap message itself.
The straps daemon must be installed setuid root because normal operating systems require root permissions to open the standard SNMP trap
port 162/udp. The straps daemon rejects all port numbers below 1024 in order to protect the system security.
SEE ALSO scotty(1), tkined(1), Tnm(n)
AUTHORS
Erik Schoenfelder <schoenfr@gaertner.de>
Juergen Schoenwaelder <schoenw@cs.utwente.nl>
Tnmstraps(8)
Check Out this Related Man Page
snmp_trapsnd(8) System Manager's Manual snmp_trapsnd(8)NAME
snmp_trapsnd - A program that sends SNMPv1 and SNMPv2 traps
SYNOPSIS
/usr/sbin/snmp_trapsnd enterprise agent_addr generic specific timeticks [-v version] [-c community] [-h host] [-p port] [-tcp] [variable
[type value]]
OPTIONS
Specifies the type of message in which to send the PDU. The default version is SNMPv1. Use 2c to specify that the PDU be sent in an
SNMPv2C message. Specifies the host name or dot-formatted IP address of the destination node to receive the trap message. If no host is
specified, the trap is sent to the loopback interface. Causes a hexadecimal dump of the encoded packet to be sent to stdout. Specifies
that the TCP transport be used instead of the UDP transport. If a connection cannot be established, the program silently sends the trap to
the standard transport address (UDP 162). Specifies the port number on the destination host to which this message is sent. The default is
162, the well-known SNMP trap port. Specifies the community string used to send the trap. The default is public.
OPERANDS
For SNMPv1 traps, this is the enterprise object identifier, in dot string notation, on whose behalf the trap is being sent (for example,
1.3.6.1.4.1.232).
For SNMPv2 traps (specified with the -v 2c option), this represents the value of snmpTrapOID.0. For an SNMPv2 enterprise-specific
trap, this is typically a concatenated string containing the enterprise OID, 0 (zero), and a single digit. See the generic parame-
ter table. The hostname or IP address of the entity on whose behalf the trap is being generated (the agent-addr field in the V1
trap PDU). The special name local reports the host on which this program is running. This value is ignored if the -v 2c option is
present. The generic trap identifier. This is a non-zero number. The following table summarizes the trap IDs:
------------------------------------------------------------------------
Description V1 generic Value V2 enterprise Value
------------------------------------------------------------------------
coldStart 0 1.3.6.1.6.3.1.1.5.1
warmStart 1 1.3.6.1.6.3.1.1.5.2
linkDown 2 1.3.6.1.6.3.1.1.5.3
linkUp 3 1.3.6.1.6.3.1.1.5.4
authenticationFailure 4 1.3.6.1.6.3.1.1.5.5
egpNeighborLoss 5 1.3.6.1.6.3.1.1.5.6
enterpriseSpecific 6 enterprise.0.x
------------------------------------------------------------------------
If the -v 2c option is present, this parameter is ignored. Specifies the enterprise-specific trap number. A value must be present,
but is ignored if the -v 2c option is present or if generic is a value other than 6. Specifies the relative time associated with
the generation of this trap message. This is the number of TIMETICKS (1/100 of a second) since the sending SNMP entity started.
Specifies a list of MIB variables to be included in the trap message. See snmp_request(8) for information on specifiying SNMP MIB
variables on the command line.
DESCRIPTION
The snmp_trapsnd program encodes an SNMPv1 Trap protocol data unit (PDU) (see RFC 1215) or a SNMPv2 Trap PDU (see RFC 1905) into an SNMP
message, and sends it to the specified host(s). All data fields in the trap PDU can be specified in the run-time arguments.
SNMPv1 traps are uniquely identified by the combination of enterprise, generic, and specific operands. SNMPv2 traps are uniquely identi-
fied by the value of snmpTrapOID.0 in the enterprise operand.
RESTRICTIONS
The use of this command should be limited. SNMP traps should be sent rarely, when significant state changes occur on a managed node.
SEE ALSO
Commands: snmpd(8), snmp_request(8), snmp_traprcv(8)
RFC 1907, Management Information Base for Version 2 of the Simple Network Management Protocol (SNMPv2)
snmp_trapsnd(8)