What is the MTU setting on the IPSec Tunnels between the Aviatrix Gateways?

All the IPSec tunnels have the MTU set to 1370bytes. If you are running any applications which do not support fragmentation, you might have issues - please adjust the MTU on your end devices. Here are a couple examples of ssh failing due to MTU - ssh hangs due to MTU, music fails due to MTU

You can adjust the MTU at “Aviatrix Console > Settings > Advanced > Tunnel > TCP MAXIMUM SEGMENT SIZE(MSS)”

Please note that we strongly recommend that you do not set the MTU to a value higher than 1370 bytes.