-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Friday 12 September 2003 09:01 am, Jose Thadeu Cavalcante wrote:

Hi,

Today I going to a site (speedguide.net) that to do a checkin of my ADSL connection. It reports that my MTU=1452 is not optimized and it suggested to change it to 1500, so I was to yast2 to edit sysconfig and change MTU value. Then I reboot the Linux and repeat the checkin, but the it also repeat the report about MTU=1452 value. What is this?

Are you using pppoe? You can't have an MTU of 1500 under pppoe due to overhead. I've heard of people around here who simply asked the telco if they can connect without pppoe and they happily set it up properly. You could ask your ISP if you can do the same. - -- James Oakley Engineering - SolutionInc Ltd. joakley@solutioninc.com http://www.solutioninc.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2-rc1-SuSE (GNU/Linux) iD8DBQE/YcXe+FOexA3koIgRAp1hAJ90I83lpMkJ+aclFhbwunvO+i0JcgCgnuH4 sN8ewM5DHpd12I2NfY43UWY= =f/y4 -----END PGP SIGNATURE-----

I belive that it is your DSL connection that does that, have some problems in the same direction. All my computers connect trough a gateway that is my server that forwards it to a Zyxel Prestige 645R DSL box that is a NAT router. Packets over DSL lines cannot be bigger than 1492 or something nearby can't remember. But standard ethernet is 1500 so then my DSL box takes the package and splits it into 1492 and 8.(is that legal? of is it splitted some other way) That makes 2 packets and is a terrible waste of bandwith, since they still need to contain other data that the DSL technology adds. So now all internal computers have a MTU of 1480 but the server still has 1500 and belive that is no good for bandwith, I better go fix it. Most of my problems are based on the fact that I don't have the energy to fix the trivial ones when they are discovered. If anything I said here is a lie please tell me since I'm only re-telling what I have been told at school. On Friday 12 September 2003 15:01, Jose Thadeu Cavalcante wrote:

reports that my MTU=1452 is not optimized and it suggested to change it to 1500, so I was to yast2 to edit sysconfig and change MTU value. Then I reboot the Linux and repeat the checkin, but the it also repeat the report about MTU=1452 value. What is this?