So we have this peplink b380 in the lab, I can VPN in using L2TP/IPsec from home using a windows PC, I can’t ping/RDP local devices on the lab. How do I do that ?
You able to grab IP after L2TP/IPsec successfully established? IP you got is same segment with B380 LAN IP?
You able to ping B380 LAN IP?
B380 able to ping the local machines (System > Ping)?
I suspect local machines protected by it local firewall. Anyway just a guess.