http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/netsh.mspx?mfr=true
Using Netsh
Netsh is a command-line scripting utility that allows you to, either locally or remotely, display or modify the network configuration of a computer that is currently running.
Netsh also provides a scripting feature that allows you to run a group of commands in batch mode against a specified computer.
Netsh can also save a configuration script in a text file for archival purposes or to help you configure other servers.
Netsh contexts
Netsh interacts with other operating system components using dynamic-link library (DLL) files. Each Netsh helper DLL provides an extensive set of features called a context, which is a group of commands specific to a networking component.
These contexts extend the functionality of netsh by providing configuration and monitoring support for one or more services, utilities, or protocols. For example, Dhcpmon.dll provides
netsh the context and set of commands necessary to configure and manage DHCP servers.
To run a netsh command, you must start netsh from the Cmd.exe prompt and change to the context that contains the command you want to use. The contexts that are available to you depend on which networking components you have
installed. For example, if you type dhcp at the Netsh command prompt, you change to the DHCP context, but if you do not have DHCP installed the following message appears:
The following command was not found: dhcp.
For more information about Netsh contexts, see the following topics:
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Using multiple contexts
A context can exist within a context. For example, within the Routing context, you can change to the IP and IPX subcontexts.
To display a list of commands and subcontexts that you can use within a context, at the
netsh prompt, type the context name, and then type either
/? or help. For example, to display a list of subcontexts and commands that you can use in the Routing context, at the
netsh prompt (that is, netsh>), type either of the following:
routing /?
routing help
To perform tasks in another context without changing from your current context, type the context path of the command you want to use at the
netsh prompt. For example, to add the Local Area Connection interface in the IGMP context without changing to the IGMP context, at the
netsh prompt, type:
routing ip igmp add interface “Local Area Connection” startupqueryinterval=21
Running Netsh commands from the Cmd.exe command prompt
When you run Netsh from the Cmd.exe command prompt, netsh uses the following syntax. To run these Netsh commands on a remote Windows 2000 Server, you must first use Remote Desktop Connection to connect to a Windows 2000 Server that is running
Terminal Server. There might be functional differences between Netsh context commands on Windows 2000 and Windows XP.
To view the command syntax, click the following command:
netsh
Netsh is a command-line scripting utility that allows you to, either locally or remotely, display or modify the network configuration of a currently running computer. Used without parameters,
netsh opens the Netsh.exe command prompt (that is, netsh>).
Syntax
netsh [-a AliasFile] [-c Context] [-r RemoteComputer] [{NetshCommand|-f ScriptFile}]
Parameters
-a : Returns you to the netsh prompt after running
AliasFile.
AliasFile : Specifies the name of the text file that contains one or more
netsh commands.
-c : Changes to the specified netsh context.
Context : Specifies the netsh context. The following table lists the available
netsh contexts.
| Context | Description |
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Shows 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. |
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Administers DHCP servers and provides an equivalent alternative to console-based management. |
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Administers and troubleshoots operating system and network service parameters. |
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Configures the TCP/IP protocol (including addresses, default gateways, DNS servers, and WINS servers) and displays configuration and statistical information. |
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Administers remote access servers. |
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Administers Routing servers. |
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Administers WINS servers. |
-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.
Remarks
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Using -r If you specify -r followed by another command, netsh executes the command on the remote computer and then returns to the Cmd.exe command prompt. If you specify |
Running Netsh commands from the Netsh.exe command prompt
Netsh uses the following standard commands in all contexts that you can run from a Netsh.exe command prompt (that is, netsh>). To run these Netsh commands on a remote Windows 2000 Server, you must first use Remote Desktop Connection to connect
to a Windows 2000 Server that is running Terminal Server. There might be functional differences between Netsh context commands on Windows 2000 and Windows XP.
To view the command syntax, click a command:
..
Moves to the context that is one level up.
Syntax
..
Parameters
/?: Displays help at the command prompt.
abort
Discards any changes made in offline mode. Abort has no effect in online mode.
Syntax
abort
Parameters
/?: Displays help at the command prompt.
add helper
Installs the helper DLL in netsh.
Syntax
add helper DLLName
Parameters
DLLName : Required. Specifies the name of the helper DLL you want to install.
/?: Displays help at the command prompt.
alias
Adds an alias that consists of a user-defined character string, which
netsh treats as equivalent to another character string. Used without parameters,
alias displays all available aliases.
Syntax
alias [AliasName] [string1 [string2 …]]
Parameters
alias [AliasName] : Displays the specified alias.
alias [AliasName][string1[string2 …]] :
Sets AliasName to the specified string(s).
/?: Displays help at the command prompt.
Examples
The following netsh sample script sets two netsh aliases, Shaddr and Shp, and then leaves the Netsh command prompt in the Interface IP context:
alias shaddr show interface ip addr alias shp show helpers interface ip
If you type shaddr at the Netsh command prompt, Netsh.exe interprets this as the command
show interface ip addr. If you type shp at the Netsh command prompt, Netsh.exe interprets this as the command
show helpers.
bye
Exits Netsh.exe.
Syntax
bye
Parameters
/?: Displays help at the command prompt.
commit
Commits any changes made in the offline mode to the router. Commit has no effect in online mode.
Syntax
commit
Parameters
/?: Displays help at the command prompt.
delete helper
Removes the helper DLL from netsh.
Syntax
delete helper DLLName
Parameters
DLLName : Required. Specifies the name of the helper DLL you want to uninstall.
/?: Displays help at the command prompt.
dump
Creates a script that contains the current configuration. If you save this script to a file, you can use the file to restore configuration settings that have been changed. Used without parameters,
dump displays all of the netsh context configurations.
Syntax
dump [FileName]
Parameters
[FileName] : Specifies the name of the file to which you want to redirect output.
/?: Displays help at the command prompt.
exec
Loads a script file and runs commands from it.
Syntax
exec ScriptFile
Parameters
ScriptFile : Required. Specifies the name of the script that you want to load and run.
Remarks
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The ScriptFile can run on one or more computers. |
exit
Exits Netsh.exe.
Syntax
exit
Parameters
/?: Displays help at the command prompt.
help
Displays help.
Syntax
{/?|?|help|h}
Parameters
none
offline
Sets the current mode to offline.
Syntax
offline
Parameters
/?: Displays help at the command prompt.
Remarks
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Changes that you make in this mode are saved, but you need to run the |
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When you switch from offline mode to online mode, changes that you made in offline mode are reflected in the configuration that is currently running. |
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Changes that you make in online mode are immediately reflected in the configuration that is currently running. |
online
Sets the current mode to online.
Syntax
online
Parameters
/?: Displays help at the command prompt.
Remarks
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Changes that you make in online mode are immediately reflected in the configuration that is currently running. |
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When you switch from offline mode to online mode, changes that you made in offline mode are reflected in the configuration that is currently running. |
popd
Restores a context from the stack.
Syntax
popd
Parameters
/?: Displays help at the command prompt.
Remarks
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Used in conjunction with pushd, popd enables you to change the context, run the command in the new context, and then resume the prior context. |
Examples
The following sample script changes a context from the root context to the
interface ip context, adds a static IP route, and then returns to the root context:
netsh>
pushd
netsh>
interface ip
netsh interface ip>
set address local static 10.0.0.9 255.0.0.0 10.0.0.1 1
netsh interface ip>
popd
netsh>
pushd
Saves the current context on a first-in-last-out (FILO) stack.
Syntax
pushd
Parameters
/?: Displays help at the command prompt.
Remarks
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Used in conjunction with popd, pushd enables you to change the context, run the command in the new context, and then resume the prior context. |
quit
Exits Netsh.exe.
Syntax
quit
Parameters
/?: Displays help at the command prompt.
set file
Copies the Command Prompt window output to a file.
Syntax
set file {open FileName|append FileName|close}
Parameters
open FileName : Sends the Command Prompt window output to the specified file.
append FileName : Appends the Command Prompt window output to the specified existing file.
close : Stops sending output and closes a file.
/?: Displays help at the command prompt.
Remarks
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Using FileName If the specified FileName does not currently exist, netsh creates a new file with that name. If the specified |
Examples
To create a new log file called Session.log and copy all succeeding netsh input and output to Session.log, type:
set file open c:session.log
set machine
Sets the current computer on which to perform configuration tasks. Used without parameters,
set machine sets the local computer.
Syntax
set machine [[ComputerName=]string]
Parameters
ComputerName : Specifies the name of the computer on which to perform configuration tasks.
string : Specifies the location of the remote computer.
/?: Displays help at the command prompt.
Remarks
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Performing configuration tasks on multiple computers You can run commands on multiple computers from a single script. You can use |
set mode
Sets the current mode to online or offline.
Syntax
set mode {online|offline}
Parameters
online : Sets the current mode to online.
offline : Sets the current mode to offline.
/?: Displays help at the command prompt.
show
Displays alias, helper, and mode information.
Syntax
show {alias|helper|mode}
Parameters
alias : Lists all defined aliases.
helper : Lists all top-level helpers.
mode : Displays the current mode.
/?: Displays help at the command prompt.
unalias
Deletes the specified alias.
Syntax
unalias AliasName
Parameters
AliasName : Required. Specifies the name of the alias.
/?: Displays help at the command prompt.
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