Here are some useful examples:
http://www.firewall.cx/cisco-technical-knowledgebase/cisco-routers/867-cisco-router-site-to-site-ipsec-vpn.html
https://www.cisco.com/c/en/us/support/docs/routers/1700-series-modular-access-routers/71462-rtr-l2l-ipsec-split.html
https://www.cisco.com/c/en/us/td/docs/security/vpn_modules/6342/vpn_cg/6342site3.html
https://www.cisco.com/c/en/us/support/docs/cloud-systems-management/configuration-professional/113337-ccp-vpn-routerA-routerB-config-00.html
https://www.cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/119425-configure-ipsec-00.html
https://www.cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/14144-static.html
For the license you need the securityk9 license.
Mo,