Multi LAN - one behind router, other not

[Perry]

Then Commercial support might be what you need.

[eethore]

hiks…

maybe i'll migrate to Mikrotik again, since in Mikrotik there was no problem like this.

thanks anyway.

[eethore]

i found the solution.

i contact the VSAT technicians. So, we try up the topologi.

MTU is the PROBLEM !!!

so, we have to give the same MTU at the cisco router and so the pfsense, so they can communicate.

Previous setting, MTU at pfsense 1500, and the cisco router 512.
So, i set the MTU at pfsense 576, and the cisco router 576.

The technicians said, it strange. Because in cisco router, it's already been set up that the cisco router will negotiate the MTU if its below it or above it. But when trying communicate with pfsense, the policy seems not working.

But, well…it's already been solved now. It's not the NAT problem, policy problem, or anything else.
It's the MTU setting.

Thanks for all.

If anyone can give me how we can negotiate the MTU and communicate with cisco smoothly, please don't hesitate.