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PPP-commands
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Last-modified: 1993/01/18
Version: 1.0
Filename: PPP-commands
Modified-by: Richard Akerman (akerman@qucis.queensu.ca)
ppp ...
These commands are used to configure Point to Point Protocol
interfaces.
This implementation of PPP is designed to be as complete as pos-
sible. Because of this, the number of options can be rather
daunting. However, a typical PPP configuration might include the
following commands:
attach asy 0x3f8 4 ppp pp0 4096 1500 9600
dial pp0 30 <hostid> 3 dialer.pp0
# ppp pp0 lcp local accm 0
ppp pp0 lcp local compress address on
ppp pp0 lcp local compress protocol on
ppp pp0 lcp local magic on
ppp pp0 lcp open active
# ppp pp0 ipcp local compress tcp 16 1
ppp pp0 ipcp open active
# route add default pp0
ppp <iface>
Display the status of the PPP interface.
ppp <iface> lcp ...
These commands are used for the LCP [Link Control Protocol] con-
figuration.
ppp <iface> lcp close
Shutdown the PPP interface.
ppp <iface> lcp local ...
These commands control the configuration of the local side of the
link. If an option is specified, the parameters will be used as
the initial values in configuration requests. If not specified,
that option will not be requested.
For each of these options, the allow parameter will permit the
remote to include that option in its response, even when the
option is not included in the request. By default, all options
are allowed.
ppp <iface> lcp local accm [ <bitmap> | allow [on | off] ]
Display or set the Async Control Character Map. The default is
0xffffffff.
ppp <iface> lcp local authenticate [ pap | none | allow [on | off] ]
Display or set the authentication protocol. The default is none.
ppp <iface> lcp local compress address/control [ on | off | allow [on | off] ]
Display or set the option to compress the address and control
fields of the PPP HLDC-like header. This is generally desirable
for slow asynchronous links, and undesirable for fast or synchro-
nous links. The default is off.
ppp <iface> lcp local compress protocol [ on | off | allow [on | off] ]
Display or set the option to compress the protocol field of the
PPP HLDC-like header. This is generally desirable for slow asyn-
chronous links, and undesirable for fast or synchronous links.
The default is off.
ppp <iface> lcp local magic [ on | off | <value> | allow [on | off] ]
Display or set the initial Magic Number. The default is off
(zero).
ppp <iface> lcp local mru [ <size> | allow [on | off] ]
Display or set the Maximum Receive Unit. The default is 1500.
ppp <iface> lcp local default
Reset the options to their default values.
ppp <iface> lcp open active | passive
Wait for the physical layer to come up. If active, initiate con-
figuration negotiation. If passive, wait for configuration nego-
tiation from the remote.
ppp <iface> lcp remote ...
These commands control the configuration of the remote side of
the link. The options are identical to those of the local side.
If an option is specified, the parameters will be used in
responses to the remote's configuration requests. If not speci-
fied, that option will be accepted if it is allowed.
For each of these options, the allow parameter will permit the
remote to specify that option in its request. By default, all
options are allowed.
ppp <iface> lcp timeout [<seconds>]
Display or set the interval to wait between configuration or ter-
mination attempts. The default is 3 seconds.
ppp <iface> lcp try ...
These commands are used for the various counters.
ppp <iface> lcp try configure [<count>]
Display or set the number of configuration requests sent. The
default is 10.
ppp <iface> lcp try failure [<count>]
Display or set the number of bad configuration requests allowed
from the remote. The default is 5.
ppp <iface> lcp try terminate [<count>]
Display or set the number of termination requests sent before
shutdown. The default is 2.
ppp <iface> ipcp ...
These commands are used for the IPCP [Internet Protocol Control
Protocol] configuration.
The close, open, timeout and try sub-commands are identical to
the LCP (described above).
ppp <iface> ipcp local ...
These commands control the configuration of the local side of the
link. If an option is specified, the parameters will be used as
the initial values in configuration requests. If not specified,
that option will not be requested.
For each of these options, the allow parameter will permit the
remote to include that option in its response, even when the
option is not included in the request. By default, all options
are allowed.
ppp <iface> ipcp local address [ <hostid> | allow [on | off] ]
Display or set the local address for negotiation purposes. If an
address of 0 is specified, the other side of the link will supply
the address. By default, no addresses are negotiated.
ppp <iface> ipcp local compress [ tcp <slots> [<flag>] | none |
allow [on | off] ]
Display or set the compression protocol. The default is none.
The tcp <slots> specifies the number of "conversation" slots,
which must be 1 to 255. (This may be limited at compilation time
to a smaller number.) A good choice is in the range 4 to 16.
The tcp <flag> is 0 (don't compress the slot number) or 1 (OK to
compress the slot number). KA9Q can handle compressed slot
numbers, so the default is 1.
ppp <iface> ipcp remote ...
These commands control the configuration of the remote side of
the link. The options are identical to those of the local side.
If an option is specified, the parameters will be used in
responses to the remote's configuration requests. If not speci-
fied, that option will be accepted if it is allowed.
For each of these options, the allow parameter will permit the
remote to specify that option in its request. By default, all
options are allowed.
ppp <iface> pap ...
These commands are used for the PAP [Password Authentication Pro-
tocol] configuration.
The timeout and try sub-commands are identical to the LCP
(described above). However, the terminate counter is unused.
ppp <iface> pap user [ <username> [<password>] ]
Display or set the username (the password may be set, but not
displayed). When the username is specified, but no password is
supplied, the ftpusers file is searched for the password. When a
username/password is unknown or rejected, a session will appear
at the console to prompt for a new username/password.
ppp <iface> trace [<flags>]
Display or set the flags that control the logging of information
during PPP link configuration.
The flag value is 0 for none, 1 for basic, and 2 for general.
Values greater than 2 are usually not compiled, and are described
in the appropriate source files where they are defined.