Hi *,

I'm trying to set up some kint of test environment for xDSL devices. before wasting 
much time trying to explain the environment here is a little picture:

| | | | | | | | |
| | | | | | | | |  XDSL Lines 
+-+-+-+-+-+-+-+-+
| Siemens DSLAM |
+-------+-------+       
        |
       ATM (OC3 SM)
        |                              
+-------+-------+                  fxp0 +---------------+
|    Brick XL   +--------X-Over---------+  FreeBSD 4.6  |
+-------+-------+                       +-------+-------+
        |                                       | fxp1
    Ethernet                                Ethernet
  192.168.64.2                            192.168.64.3
        |                                       |
--------+---------------------------------------+-----------
                        _Internet_

The BrickXL operates as a bridge and bridges the VPI:VCI combinations intended to be 
used for PPPoE and DHCP directly over the X-Over link to the FreeBSD Box running 
pppoed and dhcpd. 
Using tcp connections for bandwith maessurement show normal values, but when using a 
Ethernet Test Box (SmartApp / SmartBits), which spits out IP pakets at a defined rate 
and uses all sent frames where recieved as success criteria to determine the maximum 
transfer rate, gives rates about 60 f/s. when looking at the logs you can see that at 
higher rates (2000f/s) there are just one or two frames missing. but it takes till 
theese mentioned 60 f/s second till all packets are recieved by the testequipment. 

my pppoe config is nothing special:
rc.conf
--------------------<Schanipp>--------------------
pppoed_enable="YES"
pppoed_provider="pppoe"
pppoed_flags="-P /var/run/pppoed.pid"
pppoed_interface="fxp0"
--------------------<Schanipp>--------------------

ppp.conf
--------------------<Schanipp>--------------------
default:
 set log Phase Chat IPCP CCP tun command

pppoe:
 allow mode direct
 set timeout 0
 disable mppe
 enable pap
 set ifaddr 192.168.64.3/32 192.168.100.1-192.168.100.127
 allow users
 accept dns
 set dns 192.168.64.3 
 disable lcp
 accept lqr
 disable deflate
 disable pred1
 disable vjcomp
 disable acfcomp
 disable protocomp 
 set vj slotcomp off 
--------------------<Schanipp>--------------------

mpd is not a good alternative in this cas as AFAIK not capable of acting as a 
PPPoE-Server. 

DHCP performs fine.

greets

        flo
-- 
God isn't dead -- he's been busted.

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