TcpClient Class

$Range = 1..25
$Subnet = '10.133.3'
$Ports = 135,139,445,67,68,53,143,993,389,636,110,995,25,119,563,21,20,80,443,531,2053,543,464,88,544
foreach ($Octet in $Range)
    {
        $IPAddress = "$($Subnet).$($Octet)"
        $IP = $null
        $Mac = $null
        $MacAddress = $null
        $PortList = @()
        try
        {
            $IP = Test-Connection -ComputerName $IPAddress -Count 1 -ErrorAction Stop
            $Mac = (& arp -a $IP.Address)
            $MacAddress = ($mac | ? { $_ -match $IP.Address } ) -match "([0-9A-F]{2}([:-][0-9A-F]{2}){5})"
            if ($Matches)
            {
                try
                {
                    $mac = [system.net.networkinformation.physicaladdress]::parse($Matches[0].ToUpper())
                    }
                catch
                {
                    $mac = ''
                    }
                }
            foreach ($Port in $Ports)
            {
                $Socket = New-Object System.Net.Sockets.TcpClient
                $Socket.Client.ReceiveTimeout = 1000
                $Socket.Client.SendTimeout = 2000
                try
                {
                    $Socket.Connect($IP.Address, $port)
                    $Result = $Socket.Connected
                    if ($Result -eq $true)
                    {
                        $Portlist += $Port
                        }
                    }
                catch
                {
                    }
                $Socket.Close()
                }
            $Name = [System.Net.Dns]::GetHostEntry($IP.Address).Hostname
            New-Object -TypeName PSObject -Property @{
                IP = $IP.Address
                Name = $Name
                MAC = $Mac
                PortList = $PortList
                }
            }
        catch
        {
            $Message = $Error[0].Exception
            #Write-Host $Message
            $IP = $null
            $Mac = $null
            $MacAddress = $null
            }
        }

You can't close a TCP client and then Connect to a different Server.  After closing you need to call the client class construtor using new.  The class destructor doesn't work on the TCP client, it is not allowed.  This may cause a memory leak.  Not sure.

I know i must be doing something very stupid... but really im new on this and i tried really some hours... so hope can get some help on mercy :)!! $0$0 $0 $0created this example of Client and Server compiled both and it works fine. IF in SAME computer adress 127.0.0.1 then i tried in 2 diferente computers with diferent internet conections. i searched on my ip website to get ip of server computer and changed the client to conect to that ip. however it doesnt work... i tried also with ipconfig in prompt wich gave me diferent ip adress!!!! but also no result :( it was suposed to work what am i doing wrong???$0 $0$0 $0 $0googling 'what's my ip' only get your external ip (what the internet sees). is your server and host computers BOTH on the same network? if so, then don't google what's my IP. instead, go to command prompt, and type ipconfig (this command gets your current ip configuration settings, which is what your network sees). this is your internal ip (this is what you need!) (make sure you get your IPv4 address, not IPv6 or subnet mask. using IPv6 won't guarantee it will work)$0

I think I may know the cause of your problem as to why the client/server connection works when run on the same machine, but not on seperate machines.  You need to set the source IpEndPoint for both to each host's actual IP address rather than 127.0.0.1, since the default source endpoint is set to the first "logical" source host, which would be localhost. It is impossible for a computer to establish a connection to say, 192.168.1.101, if it's still setting the source to 127.0.0.1; as this would cause the remote computer to reply with a packet destined for 127.0.0.1, which makes the remote host reply only to itself. it wouldn't work if you set the default endpoint to 0.0.0.0:0 (that's not a valid IP address), but I found a piece of code which should help you determine the local IP and set it as the endpoint automatically.  Please see http://msdn.microsoft.com/en-us/library/3bsb3c8f.aspx$0 $0 I hope this helps, since I haven't tested it out.  Good luck! $0$0 $0 $0127.0.0.1 is the localhost address. its not the address for any particular machine if you want to connect to your own machine, use 127.0.0.1$0

How to make the system sleeps if there is no TCP connection to the server?

Why is this class so difficult to use for a simple connect & reconnect?

i'm the programmer of my software and when i decide to close a connection, I expect the component to simply terminate the socket and not dispose the whole object. Currently I have to go to great lengths to get a simple TcpClient to reconnect to a remote location after a disconnect occurs.

And NO I don't wish to construct a new object the whole time for every connection attempt, I simply wish to reuse my object.

Why am I forced to dispose objects when I simply wish to close?

[tfl - 10 10 10] Hi - and thanks for your post.You should post questions like this to the MSDN Forums at http://forums.microsoft.com/msdn. You are much more likely get a quick response 

using the forums than through the Community Content. 

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