IPv6 Support

The IPv6 protocol is the next generation of large-scale IP networks, it supports addresses that are 128 bits long. This allows 2128 possible addresses (versus 232 possible IPv4 addresses).

Typically, the IP address assigned on an IPv6 host consists of a 64-bit subnet Subnet is the logical division of an IP network. identifier and a 64-bit interface identifier. IPv6 addresses are represented as eight colon-separated fields of up to four hexadecimal digits each. The following are examples of IPv6 addresses:


The use of the “::” symbol is a special syntax that you can use to compress one or more group of zeros or to compress leading or trailing zeros in an address. The “::” can appear only once in an address.

For example, the address, 2001:0000:0eab:dead:0000:00a0:abcd:004e can also be represented as:

2001:0:eab:DEAD:0:A0:ABCD:4E – leading zeros can be omitted

2001:0:0eab:dead:0:a0:abcd:4e – not case sensitive

2001:0:0eab:dead::a0:abcd:4e - valid

2001::eab:dead::a0:abcd:4e - invalid

IPv6 uses a "/" notation which describes the no: of bits in netmask Netmask is a 32-bit mask used for segregating IP address into subnets. Netmask defines the class and range of IP addresses., similar to IPv4.

2001:eab::1/128 – single Host

2001:eab::/64 – network