Have a Cisco 2431 router with two interfaces e0/0 and e0/1. e0/1 is providing the internet connection and e0/0 will be used for MPLS. the e0/0 int will go into the 3rd port on the ASA-5505 I will route MPLS traffic to that and internet traffis to e0/0 on the ASA. Do I have to use hairpining intra-site and inter-site?