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 order to support VPN connections across the IPv6 Internet, the VPN protocols that are used must support connections over IPv6. In Windows Vista SP1 and Windows Server 2008, the L2TP/IPsec and SSTP VPN protocols support remote access VPN connections over IPv6.or remote access VPN connections, native IPv6 traffic across the IPv6 Internet is supported by L2TP/IPsec in Windows Vista and Windows Server 2008 and by SSTP in Windows Server 2008.