On Thu, 20 Jan 2005 11:18:47 +0200, Constantine Dokolas <[EMAIL PROTECTED]> wrote:
Ben Golding wrote:
I think 576 is the recommendation for best performance whether on ADSL or dial-up, several sites seem to confirm this eg:
http://www.jimschrempp.com/features/computer/mtuspeed.htm
MTU = 1500 is normal for Ethernet LANs.
How can I find out the MTU for my dial-up on a W2K machine?
(I'm assuming here you're familiar with the command line)
First, get your gateway's IP address with ipconfig.
Then, start pinging it with the dont-fragment bit set:
ping -f -l 1500 your.gateway.example
If you get this error message: "Packet needs to be fragmented but DF set.", decrease the packet size (1500 bytes), otherwise increase it. Start out with large increases/decreases and keep decreasing the amount you change the packet size. Eventually you'll reach a point where increasing the packet size by one byte results in the error message mentioned above. That is your MTU.
Hmm... I thought there was an easier way... whatever. I must remember old PPP connection logs (or was that some other protocol?).
FYI, I tested this in the company LAN and the largest value that got through was 1472.
Doc _______________________________________________ Support mailing list Support@freenetproject.org http://news.gmane.org/gmane.network.freenet.support Unsubscribe at http://dodo.freenetproject.org/cgi-bin/mailman/listinfo/support Or mailto:[EMAIL PROTECTED]
