We have a 2900 XL doing VLAN. We also have a spare 2900 doing nothing.
There is fibre from the telco to a firewall appliance doing NAT, then to the
2900. We have one public IP at the moment.
A Trango 5.3GHz access point is plugged into the 2900 with a private IP of
10.118.1.50. It supplies Internet to a customer two miles away. The
subscriber unit has an IP of 10.118.1.51.
Now this customer has decided they need a public IP and I am wondering what
would be the best way to go about this. This is my initial plan:
1. Lease a block of public IP address
2. Place a router before the 2900 and static map one IP to the private IP
of the gateway server at the customers site (via AP -> SU).
3. Map the remaining public IP addresses to the 2900, but run them through
the firewall / NAT appliance first.
Would this work without having to go to a layer 3 switch?