MTU Size

Posted on June 25, 2014 by Destry Hines

Size Matters

Whoever said “size matters” is correct in at least one area, MTU packet size. My Checkpoint VPN connection to one of our client’s server was behaving erratically and I finally got to the bottom of the issue. The MTU packet size was too big! 

I’m going to keep this short so I can get back to work and make up for last time. I had to run the following command from the command prompt:

netsh interface ipv4 set subinterface "Local Area Connection* 14" mtu=1200 store=persistent

After that everything worked fine.

Posted in Networks   Tagged checkpoint, MTU, packet size, VPN