01-22-2009
What do you mean by "stop"? Stop services listening to UDP sockets? Block external communication to UDP sockets? Stop users from accessing such ports? Completely eradicate the protocol?
Except for the last one all are possible, but you have to be more specific.
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LEARN ABOUT DEBIAN
udpcli
UDPCLI(1) BP executables UDPCLI(1)
NAME
udpcli - UDP-based BP convergence layer input task
SYNOPSIS
udpcli local_hostname[:local_port_nbr]
DESCRIPTION
udpcli is a background "daemon" task that receives UDP datagrams via a UDP socket bound to local_hostname and local_port_nbr, extracts
bundles from those datagrams, and passes them to the bundle protocol agent on the local ION node.
If not specified, port number defaults to 4556.
The convergence layer input task is spawned automatically by bpadmin in response to the 's' (START) command that starts operation of the
Bundle Protocol; the text of the command that is used to spawn the task must be provided at the time the "udp" convergence layer protocol
is added to the BP database. The convergence layer input task is terminated by bpadmin in response to an 'x' (STOP) command. udpcli can
also be spawned and terminated in response to START and STOP commands that pertain specifically to the UDP convergence layer protocol.
EXIT STATUS
0 udpcli terminated normally, for reasons noted in the ion.log file. If this termination was not commanded, investigate and solve the
problem identified in the log file and use bpadmin to restart udpcli.
1 udpcli terminated abnormally, for reasons noted in the ion.log file. Investigate and solve the problem identified in the log file,
then use bpadmin to restart udpcli.
FILES
No configuration files are needed.
ENVIRONMENT
No environment variables apply.
DIAGNOSTICS
The following diagnostics may be issued to the ion.log log file:
udpcli can't attach to BP.
bpadmin has not yet initialized Bundle Protocol operations.
No such udp duct.
No UDP induct matching local_hostname and local_port_nbr has been added to the BP database. Use bpadmin to stop the UDP convergence-
layer protocol, add the induct, and then restart the UDP protocol.
CLI task is already started for this duct.
Redundant initiation of udpcli.
Can't get IP address for host
Operating system error. Check errtext, correct problem, and restart UDP.
Can't open UDP socket
Operating system error. Check errtext, correct problem, and restart UDP.
Can't initialize socket
Operating system error. Check errtext, correct problem, and restart UDP.
udpcli can't create receiver thread
Operating system error. Check errtext, correct problem, and restart UDP.
BUGS
Report bugs to <ion-bugs@korgano.eecs.ohiou.edu>
SEE ALSO
bpadmin(1), bprc(5), udpclo(1)
perl v5.14.2 2012-05-25 UDPCLI(1)