[altq:1752] Hello & NetBSD ALTQ CBQ + PPPoE questions

[Michael Kötter <m.koetter@oraise.de>]

Hello all,

I'm new to this list as well as to ALTQ and NetBSD. I set up a PPPoE 
router for my ADSL link (768K up, 128K down) and want to shape the 
traffic of this link.
I used NetBSD's kernel pppoe driver (at least I think it's in the 
kernel) to setup the pppoe0 device. As I use NAT, I also set up an MSS 
clamp "rule" in ipnat.conf (as described in 
http://www.netbsd.org/Documentation/network/pppoe/).

This setup seems to work, until I start altqd. There are no errors in 
the log, but the pppoe interface seems to be cut off. I can't connect 
(nor ping) to anything "outside" until I stop altqd (the internal 
interface still works). My config:

#--BEGIN /etc/altq.conf
# ne2: internal net
# pppoe0: external PPPoE
interface ne2 bandwidth 768K cbq
interface pppoe0 bandwidth 128K cbq

# root classes
class cbq ne2 down_root NULL pbandwidth 100
class cbq pppoe0 up_root NULL pbandwidth 100

# default classes
class cbq ne2 down_ctl_class down_root pbandwidth 4
class cbq ne2 down_def_class down_root borrow pbandwidth 95 default

class cbq pppoe0 up_ctl_class up_root pbandwidth 4
class cbq pppoe0 up_def_class up_root borrow pbandwidth 95 default
#--EOF

Now the questions:
- Is the config OK? As there are no limiting classes and filters yet, I 
should be getting full bandwidth, right?
- Does ALTQ generally work with PPPoE? a "userspace" solution like 
rp-pppoe would also be OK if the NetBSD kernel pppoe isn't supported.
- Is it possible that ALTQ interferes with NAT or the MSS clamping?

Thanks in advance,
Michael


-- 
Michael Koetter
oraise GmbH
Am Wall 149/150
D-28195 Bremen (Germany)
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