Provided by: pppoe_3.15-2ubuntu1_amd64 bug

NAME

       pppoe-sniff - examine network for non-standard PPPoE frames

SYNOPSIS

       pppoe-sniff [options]

DESCRIPTION

       pppoe-sniff  listens  for  likely-looking  PPPoE PADR and session frames and deduces extra
       options required for pppoe(8) to work.

       Some DSL providers seem to use non-standard frame types for PPPoE frames, and/or require a
       certain  value in the Service-Name field.  It is often easier to sniff those values from a
       machine which can successfully connect rather  than  try  to  pry  them  out  of  the  DSL
       provider.

       To  use  pppoe-sniff,  you  need  two  computers,  a DSL modem and an Ethernet hub (not an
       Ethernet switch.)

       If the DSL modem normally connects directly to your computer's Ethernet card,  connect  it
       to  the  "uplink"  port  on the Ethernet hub.  Plug two computers into normal ports on the
       hub.  On one computer, run whatever  software  the  DSL  provider  gave  you  on  whatever
       operating  system  the DSL provider supports.  On the other computer, run Linux and log in
       as root.

       On the Linux machine, put the Ethernet interface into promiscuous mode  and  start  pppoe-
       sniff.  If the ethernet interface is eth0, for example, type these commands:

            ip link set eth0 promisc on
            pppoe-sniff -I eth0

       On the other machine, start your DSL connection as usual.  After a short time, pppoe-sniff
       should  print  recommendations  for  the  value  of  PPPOE_EXTRA.   Set  this   value   in
       /etc/ppp/pppoe.conf.

       After  pppoe-sniff  finishes  (or  you  stop  it  if  it seems hung), remember to turn off
       promiscuous mode:

            ip link set eth0 promisc on

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" and in promiscuous mode
              before you start pppoe-sniff.

       -V     The -V option causes pppoe-sniff to print its version number and exit.

BUGS

       pppoe-sniff only works on Linux.

AUTHORS

       pppoe-sniff was written by Dianne Skoll <dianne@skoll.ca>.

       The pppoe home page is https://dianne.skoll.ca/projects/rp-pppoe/.

SEE ALSO

       pppd(8), pppoe(8), pppoe-sniff(8), pppoe-relay(8), /usr/share/doc/pppoe/README.Debian.gz