====== netsh ======

===== Rename Interface =====

<code>
netsh interface set interface name="Local Area Connection" newname="LAN"
</code>

<code - Example>
PS C:\> netsh interface ipv4 show subinterface "Local Area Connection"

       MTU  MediaSenseState      Bytes In     Bytes Out  Interface
----------  ---------------  ------------  ------------  -------------
4294967295                1             0          9008  Loopback Pseudo-Interface 1
      1500                1    6497186526    3705920924  Local Area Connection

PS C:\> netsh interface set interface name="Local Area Connection" newname="LAN"
OK

PS C:\> netsh interface ipv4 show subinterface "Local Area Connection"

       MTU  MediaSenseState      Bytes In     Bytes Out  Interface
----------  ---------------  ------------  ------------  -------------
4294967295                1             0          9008  Loopback Pseudo-Interface 1
      1500                1    6497186527    3705920925  LAN
</code>

===== Configure Interface Address =====

==== Static ====

<code>
netsh interface ip set address name="LAN" static 192.0.2.150 255.255.255.0 192.0.2.1 1
netsh interface ip set dns name="LAN" static 192.0.2.1
</code>

==== DHCP ====

<code>
netsh interface ip set address "LAN" dhcp
</code>

===== Show Interface Configuration =====

Show the configuration of the interface named 'LAN'.

<code>
netsh interface ip show config "LAN"
</code>

<code - Example>
PS C:\> netsh interface ip show config "LAN"

Configuration for interface "LAN"
    DHCP enabled:                         Yes
    IP Address:                           192.0.2.150
    Subnet Prefix:                        192.0.2.0/24 (mask 255.255.255.0)
    Default Gateway:                      192.0.2.1
    Gateway Metric:                       0
    InterfaceMetric:                      25
    Statically Configured DNS Servers:    192.0.2.1
    Register with which suffix:           Primary only
    WINS servers configured through DHCP: None
</code>

===== MTU Configuration =====

==== Show Current MTU Configuration  ====

<code>
netsh interface ipv4 show subinterface
</code>

<code - Example>
PS C:\> netsh interface ipv4 show subinterface

       MTU  MediaSenseState      Bytes In     Bytes Out  Interface
----------  ---------------  ------------  ------------  -------------
4294967295                1             0          9008  Loopback Pseudo-Interface 1
      1500                1    6497186526    3705920924  LAN
</code>

==== Set MTU on Interface ====

Set the MTU oft the interface named "LAN" to 1420.

<code>
netsh interface ipv4 set interface "LAN" mtu=1420
</code>

<code - Example>
PS C:\> netsh interface ipv4 set interface "LAN" mtu=1420
Ok.
</code>

Check the configuration.
<code - Example>
PS C:\> netsh interface ipv4 show subinterface "LAN"

       MTU  MediaSenseState      Bytes In     Bytes Out  Interface
----------  ---------------  ------------  ------------  -------------
      1420                1    6497505732    3706327577  LAN
</code>

===== Proxy Port =====

==== Configuration ====


<code cmd Example>
netsh interface portproxy add v4tov4 listenport=8080 listenaddress=0.0.0.0 connectport=80 connectaddress=example.com
</code>

==== List Proxy Configurations ====

<code cmd>
netsh interface portproxy show all
</code>

<code - Example>
PS C:\> netsh interface portproxy show all

Listen on ipv4:             Connect to ipv4:

Address         Port        Address         Port
--------------- ----------  --------------- ----------
0.0.0.0         8080        example.com     80
</code>


==== Remove ====

<code cmd>
netsh interface portproxy delete v4tov4 listenport=8080 listenaddress=0.0.0.0
</code>

Check again.

<code - Example>
PS C:\> netsh interface portproxy show all

PS C:\>
</code>




==== Links ====

  * [[https://learn.microsoft.com/en-us/windows-server/networking/technologies/netsh/netsh-interface-portproxy|Netsh interface portproxy commands]]