netsh command.doc

7/27/2019 NETSH Command.doc

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Netsh Command / Network administration shell

What it Netsh

Netsh tool is a command-line scripting utility that allows you to, either locally or remotely, display ormodify the network configuration of a computer that is currently running. Netsh tool also provides an

useful feature that allows you to run a group of commands in batch mode. Netsh can also save the list of

commands into text file for archival purposes or to help you configure other servers in the same way.

You can use the Netsh network administartion tool to perform the following tasks:

Configure interfaces.

Configure routing protocols.

Configure filters.

Configure routes.

Configure remote access behavior for Windows-based remote access routers that are running the

Routing and Remote Access Server (RRAS) Service.

Display the configuration of a currently running router on any computer.

Use the scripting feature to run a collection of commands in batch mode against a specified router.

Netsh command internal help

C:\netsh

netsh>help

The following commands are available:

Commands in this context:

.. - Goes up one context level.

? - Displays a list of commands.

abort - Discards changes made while in offline mode.

add - Adds a configuration entry to a list of entries.

alias - Adds an alias.

bridge - Changes to the `netsh bridge' context.

bye - Exits the program.

commit - Commits changes made while in offline mode.

delete - Deletes a configuration entry from a list of entries.

diag - Changes to the `netsh diag' context.

dump - Displays a configuration script.

exec - Runs a script file.

exit - Exits the program.firewall - Changes to the `netsh firewall' context.

help - Displays a list of commands.

interface - Changes to the `netsh interface' context.

offline - Sets the current mode to offline.

online - Sets the current mode to online.

popd - Pops a context from the stack.

pushd - Pushes current context on stack.

quit - Exits the program.

ras - Changes to the `netsh ras' context.

routing - Changes to the `netsh routing' context.

set - Updates configuration settings.


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show - Displays information.

unalias - Deletes an alias.

winsock - Changes to the `netsh winsock' context.

The following sub-contexts are available:

bridge diag firewall interface ras routing winsock

To view help for a command, type the command, followed by a space, and then

type ?.

netsh>

Netsh contexts

Netsh utility interacts with others using dynamic-link library files. Each Netsh helper DLL provides an

extensive set of features called a context, which is a group of commands specific to this DLL networkingcomponent. These contexts extend the functionality of netsh. For ex., Dhcpmon.dll provides netsh the

context and set of commands necessary to configure and manage DHCP settings.

For more information about Netsh contexts, use this command in the netsh shell:

netsh>show helper

DLL Filename Command

------------ -------

HNETMON.DLL bridge

DGNET.DLL diag

FWCFG.DLL firewall

IFMON.DLL interface

IFMON.DLL ip

IPV6MON.DLL ipv6IPV6MON.DLL 6to4

IPV6MON.DLL isatap

IPV6MON.DLL portproxy

RASMONTR.DLL ras

RASMONTR.DLL aaaa

RASMONTR.DLL appletalk

RASMONTR.DLL ip

RASMONTR.DLL ipx

RASMONTR.DLL netbeui

IPMONTR.DLL routing

IPMONTR.DLL ip

IPPROMON.DLL autodhcp

IPPROMON.DLL dnsproxy

IPPROMON.DLL igmpIPPROMON.DLL nat

IPPROMON.DLL ospf

IPPROMON.DLL relay

IPPROMON.DLL rip

IPPROMON.DLL routerdiscovery

IPXMONTR.DLL ipx

IPXPROMN.DLL netbios

IPXPROMN.DLL rip

IPXPROMN.DLL sap

IFMON.DLL winsock

netsh>


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List of available netsh contexts

AAAA - commands for AAAAShows and sets the configuration of the Authentication, Authorization, Accounting, and Auditing (AAAA)

database used by the Internet Authentication Service (IAS) and the Routing and Remote Access service.

DHCP - commands for DHCPAdministers DHCP servers and provides an equivalent alternative to console-based management.

Diag - diagnostic (diag) commands

Administers and troubleshoots operating system and network service parameters.

Interface - commands for Interface IP

Configures the TCP/IP protocol (including addresses, default gateways, DNS servers, and WINS servers)

and displays configuration and statistical information.

RAS - commands for RAS

Administers remote access servers.

Routing - commands for Routing

Administers Routing servers.

WINS - commands for WINS

Administers WINS servers.

Netsh usage from command line, Netsh syntax

netsh -a AliasFile -c Context -r RemoteComputer NetshCommand

ornetsh -a AliasFile -c Context -r RemoteComputer -f ScriptFile

-r : Configures a remote computer.

RemoteComputer : Specifies the remote computer to configure.

NetshCommand : Specifies the netsh command that you want to run.

-f: Exits Netsh.exe after running the script.

ScriptFile : Specifies the script that you want to run.

/? : Displays help at the command prompt.

Netsh examples


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Show Network Diagnostic GUI

Type the following command:

netsh diag gui

Switch the specified adapter from a static address to DHCP


netsh interface ip set address "Local Area Connection" dhcp

NOTE: Typing this command changes the interface named "Local Area Connection" to DHCP.

To display all of the adapters in the computer with their current IP addresses to determine the correct

adapter name, type the following command:

Netsh interface ip show config

To change to a static address, type the following command:

netsh interface ip set address "Local Area Connection" static ipaddr subnetmask gateway metric

NOTE: Replace ipaddr with the static IP address, subnetmaskwith the subnet mask, gateway with the

default gateway and, if necessary, metric with the appropriate metric.

The following example changes the interface "Local Area Connection" to a static address of 192.168.0.10

with a subnet mask of 255.255.255.0, and the interface has a default gateway of 192.168.0.1 with a metricof 1:

netsh interface ip set address "Local Area Connection" static 192.168.0.10 255.255.255.0 192.168.0.1 1

Show multicast joins for an each network inteface


netsh interface ip show joins


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Gathering diagnostic data from Windows Firewall

Windows Firewall configuration and status information can be retrieved at the command line by using theNetsh.exe tool. This tool adds IPv4 firewall support to the following Netsh context:

netsh firewall

To use this context, type netsh firewall at a command prompt, and then use additional Netsh commands as

needed. The following commands are useful for gathering firewall status and configuration information:

Netsh firewall show state Netsh firewall show config

Supported data gathering and configuration commands are listed in the following table.

Note Settings can be modified only by an administrator.

Data GatheringCommand Description

show allowedprogram Displays the allowed programs.

show config Displays the detailed local configuration information.show currentprofile Displays the current profile.

show icmpsetting Displays the ICMP settings.

show logging Displays the logging settings.

show opmode Displays the operational mode.

show portopening Displays the excepted ports.

show service Displays the services.

show state Displays the current state information.

show notifications Displays the current settings for notifications.

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