pppoed(1M) System Administration Commands pppoed(1M)NAMEpppoed - PPPoE server daemon
SYNOPSIS
ppoed [options]
DESCRIPTION
The pppoed daemon implements the server-side negotiation of PPPoE. When
a client requests service from this daemon, a copy of pppd(1M) is
invoked to handle the actual PPP communication.
At startup, options are read from the command line and the
/etc/ppp/pppoe file. After these options have been read, options in the
per-device /etc/ppp/pppoe.device files are read, using the device names
specified on the command line or in /etc/ppp/pppoe. Device names are
not permitted in the per-device files. It is not an error if any of
these files are absent; missing files are ignored.
Options are reread in the same order on SIGHUP. Except for the possi‐
bility of short delays due to the processing time, SIGHUP does not
interfere with any client operations. Current status, including options
read, is dumped to /tmp/pppoed.pid on SIGINT.
The options are used to set up a list of services to be offered to
PPPoE clients on the broadcast domains (Ethernet subnets) specified by
the named devices. Option parsing is always in one of two modes, either
global mode or service mode. The initial mode at the beginning of each
file (and the command line) is global mode. Options specified in global
mode serve as default values for subsequently defined services. Service
mode is entered by the service name option. In this mode, the named
option is defined. Options that appear in this mode override any global
mode definitions for the current service.
The option parsing follows standard shell tokenizing rules, using
whitespace to delimit tokens, quotes to enclose strings that can con‐
tain whitespace, and escape sequences for special characters. Environ‐
ment variables are substituted using familiar $VAR and ${VAR} syntax
and set using NEWVAR=string. Variables are both usable in subsequent
options and provided to the pppd(1M) processes spawned for each client,
but they are interpreted as they are encountered during option process‐
ing. Thus, all set variables are seen by all processes spawned; posi‐
tion in the configuration files has no effect on this.
OPTIONS
The pppoed daemon supports the following options:
client [except] client-list
This option restricts the clients that may receive the service. If
the except keyword is given, then the clients on the list cannot
access the service, but others can. If this keyword is not given,
then only the listed clients can access the service.
This option can be specified more than once for a given service.
For a given client, first match among all listed options encoun‐
tered specifies the handling. If it matches an option with except
specified, then access is denied. Otherwise, it is granted. The
client list within a service is prepended to any list specified in
the global context.
If no client options are given or if all options are specified with
except, then all clients are permitted by default. If any client
options without except are specified, then no clients are permitted
by default.
The client-list is a comma-separated list of client identifiers.
The match is made if any client on the list matches; thus, these
are logically "ORed" together. Each client identifier can be either
a symbolic name (resolved through /etc/ethers or NIS, as defined by
/etc/nsswitch.conf) or a hexadecimal Ethernet address in the format
x:x:x:x:x:x. In the latter case, any byte of the address can be
"*", which matches any value in that position. For example,
40:0:1a:*:*:* matches Ethernet adapters from the manufacturer
assigned block 40:0:1a.
debug
Increase debug logging detail level by one. The detail levels are 0
(no logging), 1 (errors only; the default), 2 (warnings), 3 (infor‐
mational messages), and 4 (debug messages). Log messages are writ‐
ten by default to syslog(3C) using facility daemon (see the log
option below). When specified on the command line or in the global
context of the /etc/ppp/pppoe file, this option also sets the dae‐
mon's default (non-service-related) detail level.
device device-list
Specify the devices on which the service is available. The device-
list is a comma-separated list of logical device names (without the
leading /dev/), such as hme0. This option is ignored if encountered
in the per-device /etc/ppp/pppoe.device files.
extra string
Specifies extra options to pppd(1M). It defaults to "plugin
pppoe.so directtty" and usually does not need to be overridden.
file path
Suspends parsing of the current file, returns to global mode, and
reads options from path. This file must be present and readable; if
it is not, an error is logged. When the end of that file is
reached, processing returns to the current file and the mode is
reset to global again.
The global mode options specified in files read by this command use
the options set in the current file's global mode; this condition
extends to any file included by those files. All files read are
parsed as though the command line had specified this option, and
thus inherit the command line's global modes.
This option can be used to revert to global mode at any point in an
option file by specifying file /dev/null.
group name
Specifies the group ID (symbolic or numeric) under which pppd is
executed. If pppoed is not run as root, this option is ignored.
log path
Specifies an alternate debug logging file. Debug messages are sent
to this file instead of syslog. The special name syslog is recog‐
nized to switch logging back to syslog. When specified on the com‐
mand line or in the global context of the /etc/ppp/pppoe file, this
option also sets the daemon's default (non-service-related) log
file.
nodebug
Set debug logging detail level to 0 (no logging). When specified on
the command line or in the global context of the /etc/ppp/pppoe
file, this option also sets the daemon's default (non-service-
related) detail level.
nowildcard
Specifies that the current service should not be included in
response to clients requesting "any" service. The client must ask
for this service by name. When specified on the command line or in
the global context of the /etc/ppp/pppoe file, this option causes
pppoed to ignore all wildcard service requests.
path path
Specifies the path to the pppd executable. Defaults to
/usr/bin/pppd.
pppd string
Passes command-line arguments to pppd. It can be used to set the IP
addresses or configure security for the session. The default value
is the empty string.
server string
Specifies the PPPoE Access Concentrator name to be sent to the
client. It defaults to "Solaris PPPoE".
service name
Closes any service being defined and begins definition of a new
service. The same service name can be used without conflict on mul‐
tiple devices. If the same service name is used on a single device,
then the last definition encountered during parsing overrides all
previous definitions.
user name
Specifies the user ID, symbolic or numeric, under which pppd is
executed. If pppoed is not run as root, this option is ignored.
wildcard
Specifies that the service should be included in responses to
client queries that request "any" service, which is done by
requesting a service name of length zero. When specified on the
command line or in the global context of the /etc/ppp/pppoe file,
this option causes pppoed to ignore all wildcard service requests.
This is the default.
EXAMPLES
Example 1 Configuring for Particular Services
In the /etc/ppp/pppoe file:
service internet
device $DEV
pppd "proxyarp 192.168.1.1:"
service debugging
device hme0,$DEV
pppd "debug proxyarp 192.168.1.1:"
You then invoke the daemon with:
example% /usr/lib/inet/pppoed DEV=eri0
The lines in /etc/ppp/pppoe and the preceding command result in offer‐
ing services "internet" and "debugging" (and responding to wildcard
queries) on interface eri0, and offering only service "debugging" on
interface hme0.
SIGNALS
The pppoed daemon responds to the following signals:
SIGHUP Causes pppoed to reparse the original command line and all
configuration files, and close and reopen any log files.
SIGINT Causes a snapshot of the state of the pppoed daemon to be
written to /tmp/pppoed.pid (where pid is the decimal process
ID of the daemon).
FILES
/usr/lib/inet/pppoed executable command
/dev/sppptun Solaris PPP tunneling device driver
/etc/ppp/pppoe main configuration option file
/etc/ppp/pppoe.device per-device configuration option file
/etc/ppp/pppoe-errors location of output from pppd's stderr
/etc/ppp/pppoe.if list of Ethernet interfaces to be plumbed at
boot time
/tmp/pppoed.pid ASCII text file containing dumped pppoed state
information
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Availability │system/network/ppp/tunnel │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOpppd(1M), pppoec(1M), sppptun(1M), sppptun(7M)
Mamakos, L., et al. RFC 2516, A Method for Transmitting PPP Over Ether‐
net (PPPoE). Network Working Group. February 1999
NOTES
Because pppd is installed setuid root, this daemon need not be run as
root. However, if it is not run as root, the user and group options are
ignored.
The Ethernet interfaces to be used must be plumbed for PPPoE using the
sppptun(1M) utility before services can be offered.
The daemon operate runs even if there are no services to offer. If you
want to modify a configuration, it is not necessary to terminate the
daemon. Simply use pkill -HUPpppoed after updating the configuration
files.
The PPPoE protocol is far from perfect. Because it runs directly over
Ethernet, there is no possibility of security and the MTU is limited to
1492 (violating RFC 1661's default value of 1500). It is also not pos‐
sible to run the client and the server of a given session on a single
machine with a single Ethernet interface for testing purposes. The
client and server portions of a single session must be run on separate
Ethernet interfaces with different MAC addresses.
SunOS 5.11 6 Jan 2003 pppoed(1M)
