diff options
Diffstat (limited to 'share')
| -rw-r--r-- | share/man/man4/ng_pppoe.4 | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/share/man/man4/ng_pppoe.4 b/share/man/man4/ng_pppoe.4 index 2cf8813..924e3f3 100644 --- a/share/man/man4/ng_pppoe.4 +++ b/share/man/man4/ng_pppoe.4 @@ -182,22 +182,26 @@ This node shuts down upon receipt of a control message, when all session have been disconnected or when the .Dv ethernet hook is disconnected. -.Sh SYSCTLs -If you are one of the unfortunate people who have an ISP that -uses some "PPPoE" equipment from (I believe) 3com, and who have to -use a different ethertype on PPPoE packets -(hey why not change it from the standard for -no reason?) then after you have kldloaded or compiled in your PPPoE node, -you may have to do the following sysctl: -.Bd -literal -(kldload netgraph) -(kldload ng_pppoe) -sysctl net.graph.nonstandard_pppoe=1 -.Ed -.Pp -to enable the alternate ethertypes. -Then phone your ISP and ask them -why you need to set that option for you to be able to connect. +.Sh SYSCTL VARIABLES +The variable +.Va net.graph.nonstandard_pppoe +controls certain aspects of +.Nm +operation. +Its default value of \-1 corresponds to standard mode +and should suit nearly all purposes. +A value of 1 will turn on compatibility with some particularly +broken PPPoE implementations using nonstandard "ethertypes" +in PPPoE packets. +When in this mode, your PPPoE node will be unable to communicate +with standard nodes. +A value of 0 is deprecated. +It was intended to turn on autodetection of the proper mode. +.Bf -emphasis +It will make your entire PPPoE network vulnerable +to a denial-of-service attack, +therefore its use is strongly discouraged. +.Ef .Sh EXAMPLES The following code uses .Dv libnetgraph |
