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

       pppoe-discovery - perform PPPoE discovery

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

       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.

       -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.

              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.

              This option is accepted for compatibility with pppoe, but has no

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

       pppoe-discovery  was  written  by  Marco d'Itri <md@linux.it>, based on
       pppoe by David F. Skoll <dfs@roaringpenguin.com>.

       pppoe(8), pppoe-sniff(8)

                                22 January 2006             PPPOE-DISCOVERY(8)
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