I have configured IPSec between Mikrotik and Fortigate and communication is working fine, But I have to create Source NAT on mikrotik for the communication through IPSec that i dont want .
Because i want to configure backup PPTP client to same Fortigate . So please suggest me how can I configure the IPsec without NAT configuration.
Create ipsec policies to match subnets that you want to allow over ipsec tunnel then NAT will not be needed.
Thanks for respond,
I am using source and destination subnets in the general section of the ipsec policy src=source subnet dst addres=destintion subnet
can you please elaborate more on this