RE: [swinog] feedback on pppoe needed

[Kurt A. Schumacher]

There is no PPPoA in Austria AFIAK - aside from some other strange specific
things and issues...

We are lucky in Switzerland (or say by Swisscom mistake?) to have PPPoA
support - indeed.

-Kurt.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of [EMAIL PROTECTED]
Sent: Tuesday, June 12, 2007 12:54 PM
To: [EMAIL PROTECTED]
Subject: RE: [swinog] feedback on pppoe needed

why dont you use pppoa? there you get (mostly?) 1500.

-steven 

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Spiess Bernd
Sent: Tuesday, June 12, 2007 8:45 AM
To: swinog@lists.swinog.ch
Subject: [swinog] feedback on pppoe needed

hi swinog members

we have the need to rollout a pppoe setup on our dsl colocations where
static ip with mtu 1500 is actually in place.

as i know many postings around the world regarding pppoe mtu problems
and advices to customers to reduce mtu on their clients down to 1492, i
wanted to ask for a feedback from you if you all have pppoe with 1500
(=1492) in place or someone uses pppoe with 1508 from cpe to
pppoe-server?
if you use 1500: are the mentioned problems with websites (eg: gmx) or
ipsec setups still an issue ?

thanx and best regards from austria to our neighbors bernd spiess /
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Re: [swinog] feedback on pppoe needed

[Spiess Bernd]

thanx for the suggestions - the mtu path discovery 
problem was the reason why i asked.

fyi: here in austria we have own access to the copper
from telekom austria (colocation/unbundling) 
we have our own dslam´s and our own selection of cpe´s -
so we can build or configure whatever we like.
actually we use static ip on a switched layer 2 vlan-trunk
environment. if possible we want to avoid PPPoA because
we are no atm people.

as i understand you correct mtu 1492 under PPPoE is
still an issue in the mentioned cases. 

has anyone tried to build PPPoE with an MTU 1508 
infrastructure ?

bernd

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fabian Wenk
Sent: Tuesday, June 12, 2007 12:52 PM
To: [EMAIL PROTECTED]
Subject: [Spam] Re: [swinog] feedback on pppoe needed

Hello Bernd

Spiess Bernd wrote:
 as i know many postings around the world regarding
 pppoe mtu problems and advices to customers to
 reduce mtu on their clients down to 1492, i wanted

The problems with MTU 1492 could be on other places, eg. if a web 
server admin decides to filter ICMP on his server which will 
prevent Path MTU Discovery to work. For example this can have the 
effect, that from a website (hosted on a server which does not get 
the ICMP messages) the HTML part arrived (smaller then 1500 
bytes), but the corresponding pictrures do not. I did once write a 
paper about the ADSL MTU problem, see Swiss ADSL with PPPoA (and 
MTU 1500) [1] for more informations.

   [1] http://www.wenks.ch/fabian/ADSL-PPPoA.html

I hope for you, that ADSL with PPPoA will also work in Austria.


bye
Fabian
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