1PPPOE-DISCOVERY(8) System Manager's Manual PPPOE-DISCOVERY(8)
2
3
4
6 pppoe-discovery - perform PPPoE discovery
7
9 pppoe-discovery [ options ]
10 pppoe-discovery { -V | -h }
11
13 pppoe-discovery performs the same discovery process as pppoe, but does
14 not initiate a session. It sends a PADI packet and then prints the
15 names of access concentrators in each PADO packet it receives.
16
18 -I interface
19 The -I option specifies the Ethernet interface to use. Under
20 Linux, it is typically eth0 or eth1. The interface should be
21 “up” before you start pppoe-discovery, but should not be config‐
22 ured to have an IP address. The default interface is eth0.
23
24 -D file_name
25 The -D option causes every packet to be dumped to the specified
26 file_name. This is intended for debugging only.
27
28 -U
29 Causes pppoe-discovery to use the Host-Uniq tag in its discovery
30 packets. This lets you run multiple instances of pppoe-discov‐
31 ery and/or pppoe without having their discovery packets inter‐
32 fere with one another. You must supply this option to all
33 instances that you intend to run simultaneously.
34
35 -S service_name
36 Specifies the desired service name. pppoe-discovery will only
37 accept access concentrators which can provide the specified ser‐
38 vice. In most cases, you should not specify this option. Use
39 it only if you know that there are multiple access concentrators
40 or know that you need a specific service name.
41
42 -C ac_name
43 Specifies the desired access concentrator name. pppoe-discovery
44 will only accept the specified access concentrator. In most
45 cases, you should not specify this option. Use it only if you
46 know that there are multiple access concentrators. If both the
47 -S and -C options are specified, they must both match.
48
49 -A
50 This option is accepted for compatibility with pppoe, but has no
51 effect.
52
53 -V | -h
54 Either of these options causes pppoe-discovery to print its ver‐
55 sion number and usage information, then exit.
56
58 pppoe-discovery was written by Marco d'Itri <md@linux.it>, based on
59 pppoe by David F. Skoll <dfs@roaringpenguin.com>.
60
62 pppoe(8), pppoe-sniff(8)
63
64
65
66 PPPOE-DISCOVERY(8)