Is there a way to assign/set IP addresses/ports to system services?

Question

I’ve been looking all around the internet for this and cannot find anything.

I’m looking for a way to use two Ethernet adapters, one with a local LAN IP address and another with a public static IP address. My system is fighting over which IP address the services it is using. I have local equipment that doesn’t like using the public IP causing network and reliability issues causing loss of connection.

Also, when I have routing and remote access enabled, it also takes down certain local services from being able to connect to the server, therefore any information on how to limit or assign which ports the services are using, would be great.

Answer 1

The service developer may be your best resource to debug / troubleshoot the issues.

--please don't forget to upvote and Accept as answer if the reply is helpful--

Answer 2

If you run the netstat command from an admin command prompt like this

C:\>netstat -aon | findstr -i listen
  TCP    0.0.0.0:21             0.0.0.0:0              LISTENING       3764
  TCP    0.0.0.0:80             0.0.0.0:0              LISTENING       4
  TCP    0.0.0.0:135            0.0.0.0:0              LISTENING       1048
  TCP    0.0.0.0:443            0.0.0.0:0              LISTENING       4
  TCP    0.0.0.0:445            0.0.0.0:0              LISTENING       4
  TCP    0.0.0.0:902            0.0.0.0:0              LISTENING       4220
  TCP    0.0.0.0:912            0.0.0.0:0              LISTENING       4220
  TCP    0.0.0.0:1536           0.0.0.0:0              LISTENING       920
  TCP    0.0.0.0:1537           0.0.0.0:0              LISTENING       744
  TCP    0.0.0.0:1538           0.0.0.0:0              LISTENING       1508
  TCP    0.0.0.0:1539           0.0.0.0:0              LISTENING       2652
  TCP    0.0.0.0:1540           0.0.0.0:0              LISTENING       3948
  TCP    0.0.0.0:1543           0.0.0.0:0              LISTENING       900
  TCP    0.0.0.0:5040           0.0.0.0:0              LISTENING       4552
  TCP    0.0.0.0:5357           0.0.0.0:0              LISTENING       4
  TCP    0.0.0.0:5985           0.0.0.0:0              LISTENING       4
  TCP    0.0.0.0:7680           0.0.0.0:0              LISTENING       2172
  TCP    0.0.0.0:8080           0.0.0.0:0              LISTENING       4
  TCP    0.0.0.0:8081           0.0.0.0:0              LISTENING       4
  TCP    0.0.0.0:13482          0.0.0.0:0              LISTENING       4
  TCP    0.0.0.0:47001          0.0.0.0:0              LISTENING       4
  TCP    169.254.76.181:139     0.0.0.0:0              LISTENING       4
  TCP    [::]:21                [::]:0                 LISTENING       3764
  TCP    [::]:80                [::]:0                 LISTENING       4
  TCP    [::]:135               [::]:0                 LISTENING       1048
  TCP    [::]:443               [::]:0                 LISTENING       4
  TCP    [::]:445               [::]:0                 LISTENING       4
  TCP    [::]:1536              [::]:0                 LISTENING       920
  TCP    [::]:1537              [::]:0                 LISTENING       744
  TCP    [::]:1538              [::]:0                 LISTENING       1508
  TCP    [::]:1539              [::]:0                 LISTENING       2652
  TCP    [::]:1540              [::]:0                 LISTENING       3948
  TCP    [::]:1543              [::]:0                 LISTENING       900
  TCP    [::]:5357              [::]:0                 LISTENING       4
  TCP    [::]:5985              [::]:0                 LISTENING       4
  TCP    [::]:7680              [::]:0                 LISTENING       2172
  TCP    [::]:8080              [::]:0                 LISTENING       4
  TCP    [::]:8081              [::]:0                 LISTENING       4
  TCP    [::]:13482             [::]:0                 LISTENING       4
  TCP    [::]:47001             [::]:0                 LISTENING       4

... you will see that most services are listening on a given port and will accept a connection from any IP address that has connectivity to your server.

https://www.lifewire.com/four-zero-ip-address-818384

If your system is "fighting over IP addresses", you're going to have to explain what that means.

Maybe you have a problem with your network configuration. Check out some of these results.

https://www.bing.com/search?q=windowss+multi-homed+host

Answer 3

Hi,

Welcome to Q&A platform.

Applications/services such as a HTTP web server or an FTP server are assigned a port to use/listen on, usually in the config of the application. And they often use a standard port. HTTP for example usually uses port 80.

Every IP address on a system will have all ports available for use.

If you really want to bind the IP to a specific port, I would suggest you could post this thread in the development related forum as it related to application development which our forum doesn't focus on.

May I know which service was in impacted?

You only need this services can be used by the public IP or can be used by both LAN IP and public IP?

Best Regards,
Sunny

----------

If the Answer is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.