pppoe-discovery Man page

PPPOE-DISCOVERY(8) System Manager’s Manual PPPOE-DISCOVERY(8)

NAME

pppoe-discovery – perform PPPoE discovery

SYNOPSIS

pppoe-discovery [ options ] pppoe-discovery { -V | -h }

DESCRIPTION

pppoe-discovery performs the same discovery process as pppoe, but does
not initiate a session. It sends a PADI packet and then prints the
names of access concentrators in each PADO packet it receives.

OPTIONS

-I interface
The -I option specifies the Ethernet interface to use. Under
Linux, it is typically eth0 or eth1. The interface should be
“up” before you start pppoe-discovery, but should not be config‐
ured to have an IP address. The default interface is eth0.

-D file_name
The -D option causes every packet to be dumped to the specified
file_name. This is intended for debugging only.

-U
Causes pppoe-discovery to use the Host-Uniq tag in its discovery
packets. This lets you run multiple instances of pppoe-discov‐
ery and/or pppoe without having their discovery packets inter‐
fere with one another. You must supply this option to all
instances that you intend to run simultaneously.

-S service_name
Specifies the desired service name. pppoe-discovery will only
accept access concentrators which can provide the specified ser‐
vice. In most cases, you should not specify this option. Use
it only if you know that there are multiple access concentrators
or know that you need a specific service name.

-C ac_name
Specifies the desired access concentrator name. pppoe-discovery
will only accept the specified access concentrator. In most
cases, you should not specify this option. Use it only if you
know that there are multiple access concentrators. If both the
-S and -C options are specified, they must both match.

-A
This option is accepted for compatibility with pppoe, but has no
effect.

-V | -h
Either of these options causes pppoe-discovery to print its ver‐
sion number and usage information, then exit.

AUTHORS
pppoe-discovery was written by Marco d’Itri , based on
pppoe by David F. Skoll .

SEE ALSO

pppoe(8), pppoe-sniff(8)

22 January 2006 PPPOE-DISCOVERY(8)