Notes/Domino 6 and 7 Forum : MTU Problems?

Notes/Domino 6 and 7 Forum

MTU Problems?

MTU Problems?
Posted by ~Umberto Nongeroson on 28.Mar.03 at 01:17 AM using a Web browser
Category: Notes Client

Release: 6.0.1

Platform: Windows XP

I have seen reports of MTU issues that may cause the symptoms you are seeing. Wireless connections may be the MTU minimum - so when you use wireless the end to end MTU is smaller. If your client doesn't adapt correctly, you can cause fragmentation.

You might want to make sure that your router and firewall allow fragments to pass, and in fact support fragments correctly. Some firewall software blocks fragments by default, for example. You can also try to use a TCP tweaking tool to set a smaller MTU in your client.

ping -f -l n server can be used to determine the path MTU by searching for the maximum n that works. You could at least see if it is smaller over wireless.

I have never personally had this problem and have never tweaked my MTU setting. I'm thus using W2K MTU discovery. I have no problem with wireless.