Hi. I сan’t deal out with next thing. Given:
Wan: 1.1.1.1
Lan: 192.168.88.0/24
L2TP-Pool: 192.168.99.0/24
All working good, when connecting to WAN IP from outside(2.2.2.2, even behind NAT), traffic routed from vpn to wan, and to local clients.
BUT, when I connect within a local network(with same credentials as outside, eg. with wan ip), traffic is not going outside router (looped inside?).
How to handle this issue?
Thnx.
P.S. Why I need this? 
Android provides “Always connected” VPN, and it’s stops working from home.
P.P.S. OpenVPN not discuss.