Invoke-Webrequest

Invoke-Webrequest.ps1

# establish initial connection to website
        $initialRequest = Invoke-WebRequest -Uri 'http://192.168.100.97/csl/login' -SessionVariable WebSession1

        #$initialrequest is now an object containing the html of the web request. get the form elements from the page

        $form = $initialRequest.Forms[0] #outputting $form.fields to the screen will show you all the elements. Assuming 'username' and 'password'...

        # update $form with username and password info and submit this back to the login webpage as POST
        $form.fields.userpwd = "PASS"
        $form.fields.username = "USER"

        $loginRequest = Invoke-WebRequest -Uri ('http://192.168.100.97/csl/login' + $form.Action) -Method Post -Body $form.fields -WebSession $WebSession1

        $tcpipRequest = Invoke-Webrequest -Uri 'http://192.168.100.97/form/Device?act=5' -Method Get -WebSession $WebSession1
        $tcpsettingsform = $tcpipRequest.Forms[0]
        $tcpsettingsform.gateway = '8.8.8.8'
        $newrequest = Invoke-WebRequest -Uri "http://192.168.100.97$($form.action)" -Method $form.Method -Body $form.fields -WebSession $WebSession1