Can I set 'mssfix' and 'fragment' values for the openvpn client in the Digi transport routers?

Hi All:

The OpenVPN client on the Digi Transport routers has the ability to set the MTU for the tunnel but the mssfix and fragment values don’[t appear to be setable. The mssfix I believe is pushed from the server but the frangment must be set in the client. How can I do that?

Also, the MTU value in the client, if it is smaller than the value of the server, which value is used?

We’re having some strange issues with OpenVPN with certain types of traffic so I’m suspecting mtu issues.