Cec exports a machines console over raw ethernet frames. See cec(8)
for a client.
The read–only file ceccfg lists the interfaces on which cec is
configured, one per line.
The write–only cecctl accepts control messages. The command|
turns on a cec listener for ethern, while
turns that listener off. The command
sets the name of the current machine name to string while
sets the shelf number in Toffer messages. The default name is
the empty string and the default shelf number is –1. These parameters
are listed in the available servers presented by cec(8). The command
sets the connection password. The cec protocol transmits passwords
in the clear. This is not real security. The strings traceon and
traceoff control cec tracing.
Debugging output is available in the read–only file cecdbg.
The file cecstat lists each connection in the following format
The 7 fields are ethernet mac address, the connection number,
the connection state ( unused, initb, login, open), the number
of idle ticks, the number of retires and the address of the current
outstanding message's Block*. Fields 4–7 are likely to change in
000e0c06a37c 25 open 0 0 0 00000000|