I have an ipv6 address FC00::50, and the subnet mask length is 64. How to calculate an subnet address? I want address FC00::50 in the scope of this calculated subnet address.
Here is the description: Description: The subnet address is specified by the IP address together with the Subnet mask length. For user equipments in this subnet, the SGC uses the associated media site profile (see Section 188.8.131.52) to select a BGF for media. Default IPv4 subnet address is 0.0.0.0. Note: The default subnet address can be used to catch all addresses not covered by the configured IP address mappings. Default IPv6 subnet address is 0000:0000:0000:0000:0000:0000:0000:0000.