HP X.25/9000 User's Guide HP-UX 11i v3 (5900-1523, August 2011)

The padem program operates in either command or data transfer mode. The operating mode
depends on whether an X.121 address or a symbolic address is specified when padem is launched.
Command mode
If the X.121 address or symbolic address of the remote host is not specified, padem begins execution
in command mode and prompts the user for commands with X28> (the padem prompt).
In command mode, padem receives X.28 PAD commands from users. Any padem command can
be entered at the prompt. Once padem establishes an SVC with a remote host, it switches to data
transfer mode.
Data transfer mode
If the X.121 address or the symbolic address of the remote host is specified, padem begins execution
in data transfer mode.
In data transfer mode, typed text is sent to the remote host and text received from the remote host
is displayed at the local terminal. You can re-enter command mode to issue a padem command
by pressing Ctrl + P.
If the VC is cleared at any time (by the remote host or by the X.25 network), padem returns to
command mode or exits if the remote host address was at the HP-UX prompt.
Configuring local PAD emulation
NOTE: See the man pages for padem for its syntax and parameters.
You can configure local PAD emulation by modifying parameters in the pad_em and host_table
sections of the /etc/x25/x29hosts file. Examples of these sections are given below. See “X.25
Configuration files and examples” (page 144) for an example of the x29hosts file.
pad_em {
remote_x121 4085551111
name interface0
logging 3
reverse_charge enable
profile 0
}
host_table {
Gale 4085551111
Tornado 4085551113
Deepthought 4085551115
}
Parameter descriptions
remote_x121 Mandatory. This is the X.121 address of the remote system. Only numbers
0 through 9 are legal; wildcards or special address types are not allowed.
Local PAD emulation (padem) 109