When utilizing online proxy IPs, they are typically available for use, but there are instances where certain IPs may be unavailable, suggesting potential occupancy. How can we ascertain if an IP is occupied? Let's explore the methods with IPHTML.

 

1.ARP Cache Method

This method doesn't discern IP attributes. In the presence of a firewall or ARP filtering bag, remote computers may not respond to successful pings, but the corresponding MAC address informs the local computer of the address. By scrutinizing the ARP cache information, which correlates IP addresses to MAC addresses, one can determine if a computer is online. Initially, following the aforementioned ping method, check if an IP address is online. If the ping yields invalid information, input "arp -a" in the command prompt to inspect the local ARP cache list and verify if the corresponding IP has MAC address information.

2.Ping Method

The simplest way to ascertain if a computer is online within a network is to ping the computer's corresponding IP address. For example, to verify if 192.168.1.1 is online, open the command prompt by clicking Start/Run and execute the command "ping 192.168.1.1" in command-line mode. A successful ping indicates that the IP is linked to a connected computer.

3.Account Association Prevention Method

Leveraging the aforementioned principles, establishing techniques to prevent account association enables the detection of account associations within a LAN. For instance, to observe online addresses within the 192.168.1.* subnet, right-click the mouse, create a text file on the desktop, and input the following code: FOR /L %i IN (1,1,255) DO arp -a 192.168.1.%i >> IP.txt.

4.Save this file as a .bat file.

Double-clicking this batch file will automatically search for all IP addresses within the subnet and store the discovered ARP information in the ip.txt file. If MAC addresses are retrieved, the IPs are online.

Conclusion

These techniques for detecting IP occupancy are expected to be beneficial. It's advisable to utilize high-quality, secure proxy IPs like IPHTML, which updates millions of IPs daily, deduplicates daily, and ensures IPs are not occupied.

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