Taxation begins at the time of exercise. The bargain element of a non-qualified stock option is considered compensation and is taxed at ordinary income tax rates. For example, if an employee is granted 100 shares of Stock A at an exercise price of $25, the market value of the stock at the time of exercise is $50.
In the Internet Protocol version 4 (IPv4) [RFC791] there is a field called Protocol to identify the next level protocol. This is an 8 bit field. In Internet Protocol version 6 (IPv6) [RFC2460], this field is called the Next Header field. Values that are also IPv6 Extension Header Types should be listed in the IPv6 Extension Header Types registry at [IANA registry ipv6-parameters].
In the IPv4 world, DHCP provides a host with a single IP address. In the IPv6 world, the default behavior of DHCPv6 is the same. This would not work well if, for example, you had a full network behind the router on your cable modem.That being said, IPv6 provides (and TWC implements) two different DHCPv6 methods: Managed address configuration where the CPE requests a prefix via DHCPv6 from the ISP, and the DHCP server returns an IPv6 address prefix and a mask. 2  This would be equivalent in the IPv4 world if your ISP handed you an entire block of network addresses and a netmask, such as 192.168.1.0/24.