How to make a script that adds a network route?

Scenario

SO Windows 7

I need to connect to remote host via cisco VPN. Sometimes the host destination network is the same of local network. Example (Partial output of ipconfig command):

Ethernet adapter Cisco Vpn Adapter:
   IPv4 Address. . . . . . . . . . . : 192.168.100.12
   Subnet Mask . . . . . . . . . . . : 255.255.255.0

Wireless LAN adapter Wireless Network Connection:
   IPv4 Address. . . . . . . . . . . : 192.168.1.74
   Subnet Mask . . . . . . . . . . . : 255.255.255.0

I need to connect to host 192.168.1.11 on the remote network via Vpn Then I need to add new route (in this configuration all traffic to 192.168.1.xxx are route to local network) The output of route print begining by:

Interface List
 17...00 05 9a 3c 78 00 ......Cisco Systems VPN Adapter
 12...00 16 44 ea 74 58 ......Dell Wireless 1395 WLAN Mini-Card

And the command is:

route add 192.168.1.11 mask 255.255.255.255 192.168.100.12 metric 1 if 17

Problem:

The Ip on Cisco adapter is not static, i can't route add with modifier -p (permanent) When disconected and reconnect I need look for the NewIp and add the correct route:

route add 192.168.1.11 mask 255.255.255.255 «NewIP» metric 1 if 17

For me its easy (but boring) write all this commmands every time:

ipconfig  etc
route print etc
route add etc

I need a bat or PowerShell script to add the correct route. The scrip look for t开发者_如何学Gohe IP on the Cisco adapter and run the command route add with IP gateway founded.

Thanks

I tried renegm's answer, and the Index property gives the wrong value for me. This worked for me though (Juniper VPN here, but the same problem) - note InterfaceIndex instead of Index:

$adapter=Get-WmiObject Win32_NetworkAdapterConfiguration|
    Where-Object { $_.Description -match "Juniper Network Connect Virtual Adapter"}
$Gateway=$adapter.IPaddress[0] 
$if=$adapter.InterfaceIndex

route add 192.168.1.3 mask 255.255.255.255 $Gateway metric 1 if $if

I solved it. (I'm a complete newbie in PowerShell, but problem is very simple)

$adapter=Get-WmiObject Win32_NetworkAdapterConfiguration|
    Where-Object { $_.Description -match "Cisco Systems VPN Adapter"}
$GateWay=$adapter.IPaddress[0] 
$if=$adapter.Index
route add 192.168.1.11 mask 255.255.255.255 $Gateway metric 1 if $if

This is a pretty old discussion, but you could use the following PowerShell command to create a route AFTER you're connected to VPN:

Add-VpnConnectionRoute -ConnectionName "You VPN Name Here" -DestinationPrefix 10.0.0.0/8

It worked on Windows 10.