[ale] PPPulling my hair out

[Jim Philips]

Speedfactory switched over to PPPoE today. So, I installed rp-pppoe and 
did all of the setup. It took a few recompiles of the kernel to enable 
everything. But now, I get errors every time I try to connect in Linux. 
I have tried altering my config to both:

SYNCHRONOUS=yes

and:

SYNCHRONOUS=no

With synchronous set to yes, I get this in my logs:

Dec  4 19:45:51 localhost pppd[1101]: pppd 2.4.2 started by root, uid 0
Dec  4 19:45:51 localhost pppd[1101]: Using interface ppp0
Dec  4 19:45:51 localhost pppd[1101]: Connect: ppp0 <--> /dev/pts/14
Dec  4 19:45:51 localhost pppoe[1104]: Unable to set line discipline to 
N_HDLC.  Make sure your kernel supports the N_HDLC line discipline, or 
do not use the SYNCHRONOUS option.  Quitting.
Dec  4 19:45:51 localhost pppd[1101]: Modem hangup
Dec  4 19:45:51 localhost pppd[1101]: Connection terminated.
Dec  4 19:45:51 localhost pppd[1101]: Exit.

With synchronous set to no, I get this in my logs:

55:06 localhost adsl-connect: ADSL connection lost; attempting 
re-connection.
Dec  4 19:55:11 localhost pppd[1575]: pppd 2.4.2 started by root, uid 0
Dec  4 19:55:11 localhost pppd[1575]: Couldn't set tty to PPP 
discipline: Invalid argument
Dec  4 19:55:11 localhost pppd[1575]: Waiting for 1 child processes...
Dec  4 19:55:11 localhost pppd[1575]:   script /usr/sbin/pppoe -p 
/var/run/pppoe.conf-adsl.pid.pppoe -I eth0 -T 80 -U  -m 1412   , pid 1578
Dec  4 19:55:11 localhost pppoe[1578]: PADS: Service-Name: ''
Dec  4 19:55:11 localhost pppoe[1578]: PPP session is 3885
Dec  4 19:55:11 localhost pppoe[1578]: read (asyncReadFromPPP): Session 
3885: Input/output error
Dec  4 19:55:11 localhost pppoe[1578]: Sent PADT
Dec  4 19:55:11 localhost pppd[1575]: Script /usr/sbin/pppoe -p 
/var/run/pppoe.conf-adsl.pid.pppoe -I eth0 -T 80 -U  -m 1412    finished 
(pid 1578), status = 0x1
Dec  4 19:55:11 localhost pppd[1575]: Exit.

Following the first set of errors, I tried to enable HDLC in the kernel 
(2.6.7). I couldn't find that option anywhere. So, I'm at a loss.

Any ideas?