Proper MTU Size + Uverse
I'm in the process of installing PF Sense behind my Pace 5268 U-verse router.
The PFSense Box will be in the DMZ+ mode (so that it gets the public IP address). Everything else will be behind the PFSense on the LAN side.
On my MAC connected directly to the 5268, I believe the MTU setting is 1492 based on my ping testing with various sizes.
In PFSense, do I plug the 1492 MTU in both the LAN and WAN interfaces?
Does the MTU setting change (decrease) if I connect to the PFSense box (which is behind the RG)?