You can help us understadn this by doing the following:

while doing the tests or when experiencing difficulties,
run "tcpdump" on the ethernet interface attached to the DSL modem.

It knows how to interpret PPPoE packets and we can see whether there are
any packets coming in or out and if so, what they are.
Tjos will help us work out what the problem is.

thanks for using FreeBSD, and for reporting yuor problem to us!

we will help as much as we can..


On Tue, 4 Sep 2001, Len Conrad wrote:

> Prior to installing in a customer site, weīve been running a 4.3R and PPPoE 
> into a banal Alcatel ADSL bridge, "Home Speed" or somethting, in France as 
> LAN router/ipfilter firewall.  All seems to be running well, but after very 
> long observation, we donīt like:
> 
> 1. pinging from an LAN station to the ip of the upstream WAN port, we 
> observe 5 to 10% ping loss.  Itīs ADSL from France Telecom , sh!t is to be 
> expected.
> 
> 2. pinging from internet to the FreeBSD ethernet/PPPoE interface, we see 
> similar ping loss.  cool, itīs symmetrical.
> 
> 3. whatīs disturbing is that from the inside, we sometimes see total 
> disconnects of 3 minutes or more, where ping just times out 20 times or so, 
> 5 second timeouts.   We donīt see these long disconnnects when pinging from 
> internet to FreeBSD.
> 
> 4.  During these long disconnects, we can sometimes shorten them by 
> refreshing a website page from the LAN to Internet, ie, it seems that we 
> can get PPPoE, dead to ping and POP3 mailbox checks, going again by hitting 
> a website.  But, this is not a reliable technique.
> 
> We canīt fix the crappy ip over ADSL from FT, but what can we do to prevent 
> what appears to be long timeouts in the PPPoE to Internet provoked by lost 
> packets, which renders the FreeBSD solution unuseable.
> 
> hereīs our ppp.conf:
> 
>   set log Chat Warning Alert Error Connect
> 
>   set device PPPoE:ste0:meidsl
>   set speed sync
>   set mru 1454
>   set mtu 1454
>   set ctsrts off
>   enable lqr
>   add default HISADDR
>   set timeout 0
>   set redial 0 0
>   enable lqr
>   set lqrperiod 2
>   accept lqr
>   #Network Address Translation (NAT)
>   nat enable no
>   #nat log yes
>   #nat same_ports yes
>   #nat unregistered_only yes
>   enable dns
> 
> meidsl:
>   set authname [EMAIL PROTECTED]
>   set authkey something
> 
> thanks
> Len
> 
> 
> http://MenAndMice.com/DNS-training
> http://BIND8NT.MEIway.com : ISC BIND 8.2.4 for NT4 & W2K
> http://IMGate.MEIway.com  : Build free, hi-perf, anti-abuse mail gateways
> 
> 
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