pfSense 2.8.0 internal static route slowly

[tonyng]

• We are running Proxmox 8
• vm: pfSense 2.8.0
• also test pfSense 2.8.0 on a physic PC with 2 NICs

LHS: All PCs and servers set default route to 192.168.11.254
RHS: All PCs and servers set default route to 192.168.22.254

Both hosts set default gateway to pfSense. pfSense set static route to remote network via the MPLSVPN router.

When we scp/WinSCP files from LHS to RHS or vice versa, the speed is very slowly.
Route: 192.168.11.100 -> 192.168.11.254 -> 192.168.11.253 -> 192.168.22.253 -> 192.168.22.200
Route: 192.168.22.200 -> 192.168.22.254 -> 192.168.22.253 -> 192.168.11.253 -> 192.168.11.100

If we set the 'static route' on host 192.168.11.100 and 192.168.22.200, the speed is normal.
RHS - OS Route: "route add -net 192.168.22.0/22 gw 192.168.11.253
LHS - OS Route: "route add -net 192.168.11.0/22 gw 192.168.22.253

We test pfSense 2.8 on Proxmox VM and physical PC with 2 NICs, same result, slow speed for internal static routes

On the same Proxmox 8, if we try to run NethSecurity 8, it is working at normal speed!!

How to solve this problem? Is it a bug? Please help! Many thanks!

[SteveITS]

@tonyng What is the .253? If that is a different interface I'd expect it to need a different subnet than the pfSense LAN or WAN.

[tonyng]

@SteveITS .253 is Cisco Router, physical interface.

[tonyng]

Today, I try to install FreeBSD 14.3 on Proxmox 8, I found that FreeBSD 14.3 internal route slowly too.

How to slow this problem? Please help! Many thanks!