MetroE & VPN setup

[jfeo]

I have 3 sites on Metro Ethernet connected the 4th site is using a VPN to Head site. Metro E sites are all connected via eigrp to route traffic. What do you suggest how to route traffic from the vpn site to all 3 sites. I am having issues setting up eigrp

[Joseph W. Doherty]

What kind of VPN?

The "head site" is one of the three interconnected MetroE sites?

How is routing done at the VPN site and the "head site"?

[jfeo]

Yes Metro is the Head site

Static route to head site 

[Joseph W. Doherty]

Your remote VPN L3 device (or head site site device it connects to) cannot also run EIGRP?

[jfeo]

Untangle firewalls with Cisco 3750 switches behind them running eigrp