A network administrator needs to configure a static route that directs traffic to a single IPv4 address rather than an entire network. Which subnet mask should be used to accomplish this?
To route traffic to a single IPv4 address, a subnet mask of 255.255.255.255 (/32) is used. This subnet mask specifies a host route, which matches only one IP address. Other subnet masks like 255.255.255.0 (/24) and 255.0.0.0 (/8) correspond to larger networks, not individual hosts. A subnet mask of 0.0.0.0 is used for default routes, which matches any destination.
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What is a /32 subnet mask, and why is it used for a single IPv4 address?
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What is the difference between a host route and a network route?
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When would you use a default route (0.0.0.0 subnet mask)?
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Cisco CCNA 200-301
IP Connectivity
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