Q: Cisco Site to Site VPN
New week a new question, in this case the question is a bit more generic and I believe raises a few dilemmas, feel free to take a shot at it:
Is it secure to just configure Cisco IPSEC/GRE site to site tunnel without firewall/IPS/IDS. The argument here is although it is internet facing, there is only a host to host routing between the routers and the default route goes to the tunnel. Am I right to say that it is technically secure since the router only route traffic between the designated routers?
Thanks in advance.