-
Notifications
You must be signed in to change notification settings - Fork 13
/
Set-StaticIPv4.ps1
124 lines (89 loc) · 4.12 KB
/
Set-StaticIPv4.ps1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
<#
.SYNOPSIS
Set-StaticIPv4 cmdlet is used to automatically assign a static IPv4 address that is not in use.
.DESCRIPTION
This cmdlet is used to statically assign an IPv4 Address to a devices interfaces.
Useful if you do not know any available IPv4 Addresses and do not feel like looking them up
.NOTES
Author: Robert H. Osborne
Alias: tobor
Contact: [email protected]
.LINK
https://osbornepro.com
https://writeups.osbornepro.com
https://btpssecpack.osbornepro.com
https://github.com/tobor88
https://gitlab.com/tobor88
https://www.powershellgallery.com/profiles/tobor
https://www.linkedin.com/in/roberthosborne/
https://www.credly.com/users/roberthosborne/badges
https://www.hackthebox.eu/profile/52286
.EXAMPLE
Set-StaticIPv4 -FirstThreeOfIpAddress "192.168.1" -DefaultGateway "192.168.1.1" -ServerAddresses "208.67.222.222","208.67.220.220"
This example will use a defauly prefix length of 24. I recommend using the -Verbose switch
.EXAMPLE
Set-StaticIPv4 -FirstThreeOfIpAddress "172.16.1" -DefaultGateway "172.16.1.1" -ServerAddresses "8.8.8.8" -PrefixLength 22 -Verbose
This example defines the Prefix Length
#>
Function Set-StaticIPv4 {
[CmdletBinding()]
param(
[Parameter(Position=0,
Mandatory=$True,
HelpMessage="First 3 values of the subnet to assign the address in. Example: 192.168.1")]
[string]$FirstThreeOfIpAddress,
[Parameter(Position=1,
Mandatory=$True,
ValueFromPipeline=$True,
ValueFromPipelineByPropertyName=$True,
HelpMessage="Gateway Address. Example: 192.168.1.1")] # End Parameter
[string]$DefaultGateway,
[Parameter(Position=2,
Mandatory=$True,
ValueFromPipeline=$True,
ValueFromPipelineByPropertyName=$True,
HelpMessage="DNS Servers to use. Example: '208.67.222.222','208.67.220.220'")]
[string[]]$ServerAddresses,
[Parameter(Position=3,
Mandatory=$False,
ValueFromPipeline=$True,
ValueFromPipelineByPropertyName=$True,
HelpMessage="Enter the subnet prefix length. If this is not defined it will be set to 24. Example: 24")]
[int]$PrefixLength) # End param
BEGIN {
If ($null -eq $PrefixLength) {
[int]$PrefixLength = 24
} # End If
$AddressFamily = "IPv4"
$IpId = (Get-Random -Maximum 253 -Minimum 10)
$IP = "$FirstThreeOfIpAddress.$IpId"
} # End BEGIN
PROCESS {
Do {
If (Test-Connection $Ip -Count 1) {
$IpId = (Get-Random -Maximum 253 -Minimum 10)
$IP = "$FirstThreeOfIpAddress.$IpId"
} # End If
Else {
Write-Verbose "Retrieving network adapter to configure..."
$Adapter = Get-NetAdapter | Where-Object { $_.Status -eq "up" }
Write-Verbose "Removing existing IP, and Gateway from the IPv4 adapter"
$AdapterConfig = $Adapter | Get-NetIPConfiguration
If (($AdapterConfig.IPv4Address.IPAddress) -and ($AdapterConfig.Ipv4DefaultGateway))) {
Write-Verbose "Removing old IPv4 Address"
$Adapter | Remove-NetIPAddress -AddressFamily $AddressFamily -Confirm:$False
Write-Verbose "Removing old Default Gateway"
$Adapter | Remove-NetRoute -AddressFamily $AddressFamily -Confirm:$False
} # End If
Write-Verbose "Configuring the IPv4 address and default gateway"
$Adapter | New-NetIPAddress -AddressFamily $AddressFamily -IPAddress $IP -PrefixLength $PrefixLength -DefaultGateway $DefaultGateway
Write-Verbose "Configuring the DNS client server IP addresses"
$Adapter | Set-DnsClientServerAddress -ServerAddresses $ServerAddresses
} # End Else
} While (Test-Connection $Ip -Count 1)
} # End PROCESS
END {
$NewIP = (Get-NetIPAddress -AddressFamily $AddressFamily -PrefixLength $PrefixLength).IPAddress
Write-Verbose "Your static IPv4 address is $NewIP"
} # End END
} # End Function Set-StaticIPv4