Kernel-mode PPPoE

Install the patch for PPP 2.4.1 (look here for a prebuilt Debian package)
There are two ways to set up your connection:
1. Change /etc/ppp/options:
```
plugin pppoe.so
...
```
  then
```
# pppd eth0
```
2. Change /etc/ppp/peers/provider:
```
plugin pppoe.so eth0
...
```
  then
```
# pppd call provider
```