Is it possible to have a site-2-site IPSec tunnel with /30 IP on both ends and route on that tunnel ?
either with static routing or dynamic (ospf)
Trying to connect a Mikrotik with a Sophos XG where XG is in tunnel mode IPSEC.
IPSec in RouterOS doesn’t provide interfaces, so routing like this is not possible. If you need one, you need to add it manually, e.g. use IPIP between endpoints and IPSec to encrypt it. But other side must have the same too.