Windows 7 Chapter 6 Network Settings

Front 1

private networks

Back 1

10.0.0.0/8 (10.0.0.1 through 10.255.255.254)
172.16.0.0/12 (172.16.0.1 through 172.31.255.254
192.168.0.0/16 (192.168.0.1 through 192.168.255.255)

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ICS

Back 2

ICS uses the 192.168.0.0/24 address range (192.168.0.1 through 192.168.0.254),

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configure the Local Area Connection

Back 3

netsh interface ipv4 set address "local area connection" static 10.0.0.11 255.255.255.0 10.0.0.11

netsh interface ipv4 set dnsservers "local area connection" static 10.0.0.11

netsh interface ipv4 set address name="local area connection" source=dhcp

netsh interface ipv4 set dnsservers name="local area connection" source=dhcp

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negative caching

Back 4

the source computer does not attempt to obtain name resolution but instead uses the cached information and again fails the request.

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flush the DNS cache

Back 5

ipconfig /flushdns

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Ping windows 7

Back 6

in Windows 7, you cannot ping other computers on your network by default.

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Netstat

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The Netstat command-line tool displays active connections

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Netstat provides statistics for the following:

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The name of the protocol (TCP or UDP)
The IP address of the local computer and the port number being used
The IP address and port number of the remote computer
The state of a TCP connection

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21cd:53::/64

Back 9

the first 64 bits of the address are the
network
prefix.

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multinetting.

Back 10

Multiple subnet IDs can be assigned to the same link

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IPv6 Address Types

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Unicast
Multicast
Anycast

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Unicast

Back 12

Identifies a single interface within the scope of the unicast address type. Packets addressed to a unicast address are delivered to a single interface.

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Multicast

Back 13

Identifies multiple interfaces. Packets addressed to a multicast address are
delivered to all interfaces that are identified by the address.

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Anycast

Back 14

Identifies multiple interfaces. Packets addressed to an anycast address are delivered to the nearest interface identified by the address

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IPv6 Unicast Addresses

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Global
Link-local
Site-local
Special

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Global Unicast Addresses

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Global unicast addresses are the IPv6 equivalent of IPv4 public addresses and are globally routable and reachable on the IPv6 Internet.

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Link-Local Addresses

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Link-local IPv6 addresses are equivalent to IPv4 addresses allocated through APIPA. You can identify a link-local address by an FP of 1111 1110 10, which is followed by 54 zeros (link-local addresses always begin with fe8)

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Site-Local Addresses

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Site-local IPv6 addresses are equivalent to the IPv4 private addresses. Private intranets that do not have a direct, routed connection to the IPv6 Internet can use site-local addresses without conflicting with global unicast addresses

Site-local addresses begin with fec0.

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Special Addresses

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The loopback address 0:0:0:0:0:0:0:1 (or ::1) is used
to identify a loopback interface and is equivalent to the IPv4 loopback address 127.0.0.1.

0:0:0:0:0:0:0:0 (or ::) is used to indicate the absence of an address and is equivalent to the IPv4 unspecified address 0.0.0.0

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FP

Back 20

Format Prefix (FP)

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IPv6 Multicast Addresses

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multicast addresses enable an IPv6 packet to be sent to a number of hosts, all of which
have the same multicast address. They have an FP of 11111111 (they always start with ff ).

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What type of address is fec0:0:0:eadf::1ff?

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Unicast site-local

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IPv6 Anycast Addresses

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An anycast address is assigned to multiple interfaces. Packets sent to an anycast address are forwarded by the routing infrastructure to the nearest of these interfaces

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Exam Tip IPv6

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A global unicast address is the IPv6 equivalent of an IPv4 public unicast address, and it
typically starts with a 2. A link-local IPv6 address is equivalent to an IPv4 APIPA address and it starts with fe8. A site-local IPv6 address is equivalent to an IPv4 private address and it starts with fec0. The special IPv6 addresses :: and ::1 are equivalent to the IPv4 addresses 0.0.0.0 and 127.0.0.1. Multicast IPv6 addresses start with ff. Anycast addresses are assigned only to routers and are beyond the scope of the 70-680 examination.

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The Advantages of IPv6

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Increase address space
Automatic Address configuration
Network level security
Real-time data delivery
Touting table size
Header size and extension headers
Removal of broadcast traffic

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How many bits are in an IPv4 address?

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32

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How many bits are in an IPv6 address?

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128

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ND

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Neighbor Discovery (ND) protocol

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Teredo server

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A Teredo server is an IPv6/IPv4 node connected to both the IPv4 Internet and the IPv6 Internet that supports
a Teredo tunneling interface.

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Intra-Site Automatic Tunneling Addressing Protocol (ISATAP) Address

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IPv6 can use an Intra-Site Automatic Tunneling Addressing Protocol (ISATAP) address to communicate between two nodes over an IPv4 intranet

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implement IPv6-to-IPv4 compatibility

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You can implement IPv6-to-IPv4 compatibility by using the IPv6 tools Netsh interface ipv6
6to4, Netsh interface ipv6 isatap, and Netsh interface ipv6 add v6v4tunnel

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netsh interface ipv6 show neighbors

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shows the IPv6 interfaces of all hosts on the local
subnet

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% character followed by a number after each IPv6 address

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This is the interface ID, which identifies the interface that is configured with the IPv6 address.

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to manually configure an IPv6 address

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Netsh interface ipv6 set address command

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the command to add IPv6 addresses of DNS

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Netsh interface ipv6 add dnsserver

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The command to add a default
gateway

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Netsh interface ipv6 add route

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What Netsh command lists site IDs?

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netsh interface ipv6 show address level=verbose

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You can check the contents of
the neighbor cache

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netsh interface ipv6 show neighbors

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flushes the cache

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netsh interface ipv6 delete neighbors

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You can display the current contents of the destination cache

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netsh interface ipv6 show destinationcache.

To flush the destination cache, enter netsh interface ipv6 delete destinationcache.

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You can identify the IPv6 address of your default router interface

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Ipconfig, Netsh interface ipv6 show routes, or Route print

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What Netsh command could you use to identify the IPv6 address of your default router interface?

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netsh interface ipv6 show route

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to view the local IPv6 routing table

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Route print, Netstat –r, or Netsh interface ipv6 show route

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To connect to the wireless network

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netsh wlan connect name=default

netsh wlan connect name=default ssid=myothernet

netsh wlan disconnect

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To disconnect from all interfaces, you enter the following command

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netsh wlan disconnect interface=*

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preferred list

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If you have previously connected to various wireless networks, the list of these networks is referred to as your preferred list

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The following authentication types for wireless

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No authentication (open)
Shared (a shared secret passkey)
Wi-Fi Protected Access (WPA)-Personal
WPA2-Personal
WPA-Enterprise
WPA2-Enterprise
802.1X

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Ad hoc network protocols

Back 48

Ad hoc networks use IPv6

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Wireless Network Technologies

Back 49

802.11b
802.11a
802.11g
802.11n

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From which dialog box can you add a new protocol, server service, or client service?

Back 50

The Local Area Connections Properties dialog box

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network bridge

Back 51

A network bridge is software or hardware that connects two or more networks so that they
can communicate. If you are managing a network that has different types of networks (for
example, wired and wireless), you would typically use a bridge when you want to exchange information or share files among all the computers on those networks.

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increase security in wireless network

Back 52

Change the default SSID
Turn on WPA or WEP encryption
Change default administrator passwords
Enable MAC address filtering
Disable SSID broadcast
Do not auto-connect to open wireless networks
Enable firewalls
Position the WAP centrally
Turn off the network during extended periods of nonuse
Consider assigning static IP addresses to wireless clients