I have a customer who uses Public IP addresses on their internal LAN.
They have a firewall in both sites and they open required ports using access lists. They also have also opened all traffic between their Public IP ranges at each site.
I think this is a security vulnerability and could cause things like IP spoofing attacks.
I would like to know what are the vulnerabilities while using Public addresses inside the LAN. Are there any guidelines from Cisco.
thanks in adv,