Tue Aug 22, 2017 3:30 pm
Well, unless this person wants to use the tunnel interface. I find using transport mode ipsec between wan IPs is easier, then you can use whatever tunnels you want and they will be encrypted.
tunnel=no
proposal src-address=Y.Y.Y.Y
Consider using a GRE tunnel as well, although not sure if that matters.
If you want tunneling inside the IPIP (or GRE) interface, then there's no need to tunnel "again" in ipsec.
Set up your routing to use the tunnel interface, not the ipsec.
This might break your ipsec until you set it up right on both sides though, be careful if you don't have out of band management.
When you get done, turn on the sniffer on your outbound physical interface, then ping the WAN interface on the other side (Cisco) from the MIkroTik. Also, send some traffic over the IPIP tunnel. In Wireshark, the packets between the 2 WAN IPs should be encrypted (ESP). You should only see ESP packets between the 2 IPs. That's how you know it's working.