Depricate an IP address

Say, a server has a number of IP addresses, but we don't want some addresses to be used as outbound.

ipconfig /all   gives us which address is preferred:

 Autoconfiguration Enabled . . . . : Yes
 IPv4 Address. . . . . . . . . . . : 2.68.18.2(Preferred)
 Subnet Mask . . . . . . . . . . . : 255.255.255.248
 IPv4 Address. . . . . . . . . . . : 2.68.18.3(Preferred)
 Subnet Mask . . . . . . . . . . . : 255.255.255.248

To make an address not preferred, remove it from the interface and recreate it again using the netsh:
 
interface ipv4 add address LAN 2.68.18.2 mask=255.255.255.248 preferredlifetime=0