Quick Check Facts for Windows Server 2008, Active Directory Network Infrastructure

IPv6 
IPv6 Addressing

• IPv6 address space is 128 bits (16 bytes)
• Large address space. Divided along 16-bit boundaries, converted to 4 digit hexadecimal numbers, separated by colons - known as colon hexadecimal .
• Simpler host configuration. IPv6 supports dynamic client configuration by using DHCPv6 and IPv6 also enables routers to configure hosts dynamically.
• Improved routing efficiency. Reduces how many routes the Internet must process by supporting hierarchical routing.
• Built-in security. IPv6 ensures all hosts encrypt data while in transit by including native IPSec support.
• IPv6 address types
• Unicast. Packets delivered to a unicast address are delivered to a single interface, one-to-one communication
• Multicast. Packets are delivered to multiple interfaces, one-to-many. One-to-many communication between computers that are defined as using the same multicast address. Multicast addresses have the first 8 bits set to 1111 1111 or FF
• Anycast. Identifies multiple interfaces, but delivered to a single interface, the closest one.  Used for locating services or the nearest router.
• Global Unicast address
• Equivalent to IPv4 public addresses
• Identified by the FP (Format Prefix) of 001 (globally routable and reachable on the IPv6 Internet
• The scope of a global unicast address is the entire IPv6 Internet
• The address prefix of a currently assigned global address is 2000::/3
• The combination of the first 3 high-order fixed bits and the 45-bit Global Routing Prefix is a 48-bit prefix assigned to an individual site
• The next 16 bits are the Subnet ID 
• The Interface ID field is the next 64-bits 

Network File and Print Services

Configuring and Troubleshooting File Shares 

What is a File Share?

A file share is a folder that has been configured so that it can be accessed over a network.

In Windows Server 2008, to configure a file share, install the File Service server role. The File Service server role automatically configures Windows Firewall to allow file sharing.

File Services Role

Windows Server 2008 has a new tool called Share and Storage Management that is used to create and configure file shares. To do this, you can also use the Computer Management tool that is available in previous versions of Windows Server and the command line tool, Net use.

Share and Storage Management