A network administrator configured a router interface as 10.0.0.250/24. The administrator discovers that the router is not routing packets to a web server with IP 10.0.0.0/20. Which of the following is the best explanation?
The router interface is a broadcast address.
The IP address 10.0.0.250/24 indicates that the subnet mask allows for a range of addresses from 10.0.0.1 to 10.0.0.254, with 10.0.0.255 being the broadcast address. Since 10.0.0.250 is the highest usable address in that subnet, it is considered the broadcast address and is not suitable for routing packets to a specific device, such as the web server.
Although the web server's address of 10.0.0.0/20 does represent a different subnet, this option does not explain the primary issue at hand. The router can still route packets to devices within its subnet. The actual problem lies with the configuration of the router interface itself rather than the existence of a different subnet.
As mentioned, 10.0.0.250 is the highest address within the 10.0.0.0/24 subnet and thus functions as a broadcast address. A router interface configured to use a broadcast address cannot route packets, as it does not identify a specific device. This misconfiguration directly leads to the inability to communicate with the web server.
While the 10.0.0.0 network does fall within the Class A range, this classification does not inherently affect routing capabilities or address usability in the context presented. The key issue is not the class of the address, but rather the misuse of the broadcast address for the router interface.
The 10.0.0.0/24 subnet is indeed classified as a private address space, which allows for internal communication without conflict on the public internet. However, being in a private address space does not explain the routing issue. The root cause is related to the broadcast address configuration of the router interface.
The inability of the router to route packets to the web server at 10.0.0.0/20 stems from the misconfiguration of its interface to 10.0.0.250, a broadcast address. This configuration prevents the router from identifying the correct destination for packets, leading to communication failures. Understanding the implications of network address configurations is crucial for effective routing and network management.
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