Re: usage of "ifup ppp0" as opposed to "pon"

[Thomas Hood <jdthood@yahoo.co.uk>]

> #this is for ppp0 configuration
> auto ppp0
> iface ppp0 inet ppp
>          up /etc/iptables/iptables.sh start
>          provider dsl-provider
>          down poff -a
>          post-down /etc/iptables/iptables.sh stop


1. You don't need the "down" line.  ifdown runs pon and poff
   for you.

2. The up and post-down commands don't work properly with ppp ifaces.
   See bug #127786.  The problem is that ifup simply runs pon
   and then the "up" commands; pon returns immediately -- i.e.,
   before pppd has finished bringing up the ppp connection --
   so the "up" commands get run too early.  A similar problem
   afflicts the "post-down" commands.  Until this bug is fixed
   you have to put "up" commands into a script in /etc/ppp/ip-up.d/
   and "post-down" commands into a script in /etc/ppp/ip-down.d/ .

-- 
Thomas Hood <jdthood@yahoo.co.uk>