Does PFSense modify TCP window sizes?
biogoon last edited by
I'm working to improve speeds over a high latency network between our east and west coast offices. On the clients, I'm experimenting with larger tcp window sizes over our site-to-site OpenVPN connection, and also direct between our public IPs. PFsense boxes serve as our border router, nat, and openvpn servers at both sites.
My question is: does PFSense modify the tcp windows sizes? There is a system tunable about tcp window sizes, but I'm wondering if that is just for the system itself, and not the packets being routed through the system.
phil.davis last edited by
TCP window size is a parameter at a higher layer that end-systems use to work out how much data to have outstanding in the pipeline before waiting/expecting ACKs to have come back. I played with this many years ago tuning continuous flows of a data acquisition process across a long link. TCP window size needs to be adjusted on the end-systems.