Company A recently acquired another company.
Users of the newly acquired company must be able to access a server that exists on Company A's network, both companies use overlapping IP address ranges.
Which action conserves IP address space and provides access to the server?
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A. B. C. D.A.
When two companies with overlapping IP address ranges merge, it creates an IP addressing conflict, and devices from each company will not be able to communicate with each other without addressing conflicts. In this scenario, one of the companies (Company A) must have its IP addressing scheme reconfigured to eliminate the overlap.
However, if readdressing is not feasible, another option is to use Network Address Translation (NAT) to allow access to the server on Company A's network from the newly acquired company. NAT is a technique that allows devices on one network to communicate with devices on another network that uses a different IP address range.
Option A suggests using a single IP address to create an overload NAT. Overload NAT, also known as Port Address Translation (PAT), is a NAT technique that maps multiple private IP addresses to a single public IP address by using different port numbers. This option may conserve IP address space, but it would only allow a limited number of users to access the server simultaneously.
Option B suggests using a single IP address to create a static NAT entry. A static NAT entry maps a single private IP address to a single public IP address. This option would provide access to the server for all users, but it would not conserve IP address space.
Option C suggests building a one-to-one NAT translation for every user that needs access. This option would provide access to the server for all users, but it would require a lot of configuration, and it would not conserve IP address space.
Option D suggests readdressing the overlapping address space in the acquired company. While this option would solve the IP addressing conflict and provide access to the server, it would require a significant amount of work and could result in downtime and potential network disruptions.
Therefore, the best option for this scenario is option B - Use a single IP address to create a static NAT entry. It provides access to the server for all users and avoids the need to readdress or configure a one-to-one NAT for each user.