I had some trouble with a system that used to be routed using a static route or firewall rule with gateway.
This doesn't work anymore with 26.1.
Static routes are not added as check with netstat -rn shows
adding a route with route add destination internal-IP-address then it DOES work...
I have an address block... one of the addresses (PUB-1) is handing all NATted ports. usual NAT rules apply, works no problem.
An other address is routed through....
This used to be a static route: IP address = PUB-2, with gateway 192.168.x.10
The system on 192.168.x.10 has the PUB-2 address as default and 192.168.x.10 as an alias.
On previous versions this was no problem. Current version fails to add the route needed.
Also adding a in the firewall with a gateway added does not work.
There is a reason for NOT using NAT..., it helps when some systems have the public address on the local system, due to software/protocol limitations.