Koi usually live around 20 or 30 years. The oldest Koi on record was named Hanako. It purportedly lived to be about 226 years old. It lived in a pond that was in a stable area (read low geologic activity) and was passed down from generation to generation. Hanako died around 1977.
Â­ This is where NAT (RFC 1631) comes to the rescue. Network Address Translation allows a single device, such as a router, to act as an agent between the Internet (or public network) and a local (or private) network. This means that only a single, unique IP address is required to represent an entire group of computers.
The subnet mask is a way to calculate the network portion of the address space and the host address space. The network address space is assigned to you, the host address space you define which device receives what address in the host space. A computer performs binary math of ANDing the IP address and the network mask. IP Address 10.10.15.10/16