I'm using a fresh raspbian stretch SD card.
Sorry if I can't get my meaning across well, I'm new to this and still learning.
I'm trying to set up my Pi as a sort of VPN gateway/router. I'd love to know which of the two would be a more apt description. Ultimately devices connected to the pi through eth1 (via USB) should be able to access both the internet and the VPN connection.
The pi access the interent through a local network on eth0 (ip 10.10.0.126, netmask 255.255.255.0) and gets it's address from a DHCP server.
The pi builds a connection to the SSL VPN server using openfortivpn (using PPP). Works like a charm. I'll worry about VPN later, right now I'm stuck at networking.
I would like to create a subnet on eth1 (via USB). I'm trying to wrap my head around dhcpcd.conf and whether I need to set up isc-dhcpd-server to create the subnet, but honestly I'm at a loss. Any help would be appreciated.