which VPN should configure between L2 and L3 Link ?

[akabarasif]

HI,

we have L2 and L3 link between 2 sites (private IP) and we configure SD-WAN between both site. i am wondering which VPN should i configure ? i saw IPsec VPN has more flavours and there is not much detail. can anyone please suggest

[Yurisk]

Between Fortigate gateways the IPsec VPN is the pretty much the only VPN you can have, with GRE/VXLAN encapsulations as its variants may be.