Cheers, but I still need the edgerouter pro to do it's job of being a firewall as well as a router.
Oddly I'm seeing connections out so I'm thinking it's more a firewall issue than a routing issue now that I've got the peth0 interface and I can ssh in.
I've set the firewall WAN_IN to be on eth7 now as when I had it on PETH0 it wasn't being hit by any traffic but I'm still not able to get pings out or dns etc.
Whilst it might be nice to have machines with external address that's not what I want at the moment and we are staying with NAT