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: swinog-bounces@lists.swinog.ch [mailto:swinog-bounces@lists.swinog.ch] On Behalf Of Fabian Wenk Sent: Tuesday, June 12, 2007 12:52 PM To: swinog@swinog.ch 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 _______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog