TFTP and jumbo frames

[rs232]

I've enabled jumbo frames on my LANs. The two sites are connected over VPN and there's a freenas on each site.

When I attempt a PXE boot using the remote FreeNAS TFTP server I've noticed that the client receives a double session of the file (and both fail).. I think this is a block size problem like lack blocksize negotiation between server and client or just blocksize too large for the VPN's MTU.
In Freenas 7 there was a field where to specify the block size. Now in freenad 8.2.0 B3 how can I tweak this?

Thanks!

 

[William Grzybowski]

Please report it as a request feature in support.freenas.org