IP Routing

IP routing forwards data packets based on the destination IP address. This routing is based on routing tables, and while entries are made automatically, you might need to add, remove, or modify routing table entries manually. The NETTCPIP PowerShell module also includes cmdlets used to manage the routing table for Windows servers and devices.

The cmdlets for managing routing table entries have the noun “NetRoute” in the names.

Cmdlet	Description
New-NetRoute	Creates an entry in the IP routing table
Get-NetRoute	Retrieves an entry from the IP routing table
Set-NetRoute	Modifies properties of an entry in the IP routing table
Remove-NetRoute	Deletes an entry from the IP routing table
Find-NetRoute	Identifies the best local IP address and route to reach a remote address

Creating an IP routing table entry

You can use the New-NetRoute cmdlet to create routing table entries on a Windows computer. The New-NetRoute cmdlet requires you to identify the network interface and destination prefix.

Parameter	Description
‑DestinationPrefix	Defines the destination prefix of an IP route
‑InterfaceAlias	Defines the network interface, by alias, for an IP route
‑InterfaceIndex	Defines the network interface, by index, for an IP route
‑NextHop	Defines the next hop for an IP route
‑RouteMetric	Defines the route metric for an IP route

The following command creates an IP routing table entry:

New-NetRoute -DestinationPrefix 0.0.0.0/24 -InterfaceAlias "Ethernet" -DefaultGateway 192.168.1.1

The NetTCPIP PowerShell module also includes cmdlets used to manage the routing table for Windows servers and devices. They have the noun “NetRoute” in their names.