I currently have an IP block from my ISP. I am using a Cisco ASA 5510 firewall as the edge device of my network before the ISP router.
We recently purchased a polycom device to allow video conferencing inside our network. It requires a public routable IP be assigned to its WAN interface however, and will not support any sort of NAT/PAT, but I am unsure how to deliver an IP from my block to this device.
I have open ports on my ASA that could be used if needed. My lan side uses standard internal RFC 1918 addresses (192.168.0.0/16), and I have plenty of open IPs on my WAN block, but don't know how to get them to the device.
I have no problems doing incoming PAT or anything like that, but that isn't applicable in this case because it will not work without the public routable IP.