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 configured to have an IP address. The
default interface is eth0.
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-discovery and/or pppoe without having their
discovery packets interfere with one another. You must
supply this option to all instances that you intend to run
Specifies the desired service name. pppoe-discovery will
only accept access concentrators which can provide the
specified service. 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.
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 effect.
-V | -h
Either of these options causes pppoe-discovery to print
its version number and usage information, then exit.
This page is part of the ppp (An implementation of the Point-to-
Point Protocol (PPP)) project. Information about the project can
be found at ⟨https://ppp.samba.org/⟩. If you have a bug report
for this manual page, see
⟨https://github.com/paulusmack/ppp/issues⟩. This page was
obtained from the project's upstream Git repository
⟨https://github.com/paulusmack/ppp⟩ on 2021-06-20. (At that
time, the date of the most recent commit that was found in the
repository was 2021-06-19.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to