Hi guys,
I am configuring opnsense ipsec tunnel between headquarter and branch. Headquarters have different networks connected to edge router so do branch. I was wondering is there any way to create a GRE tunnel over IPSEC so multicast routing traffic can reach to remote sites? Or is there any other way where we can route different edge router networks to remote site over IPSEC?
Thank you for your help in advance.
IPsec and GRE is a bit pain, mainly with GRE and IPv6. Is there an option to use OpenVPN instead?