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As you note, gateways can be statically configured. You can have a default gateway (gateway of last resort to 0.0.0.0/0) and/or gateways for more specific networks (prefixes longer than 0). A gateway is the host on a network that is used to reach other networks. An IPv4 host can receive a default gateway from the DHCP (Dynamic Host Configuration Protocol) ...


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I can only rely on the known MAC to determine if the device is here or not Looking for a MAC address may not be reliable. MAC addresses can be easily spoofed and many wireless devices randomize their MAC address for privacy. Listening to broadcasts is even less reliable unless the listener is located very close to the access point (WAP). The more distance ...


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Why do we need private addresses such as RFC1918? Well, say for instance you configure your local network with your router interface 8.8.8.1/24. You configure your clients with DHCP of range 8.8.8.100-8.8.8.254. Everything will work fine, your clients in your local network will be able to contact each other. You can even S-NAT these addresses to your WAN-...


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RFC 1918 provides address ranges that you can safely use within a private network without any danger that these same addresses might be used on the public Internet. Any node within your network needs to be able to address any destination it requires. If your local network uses the same address range (subnet) that some public servers do (e.g 244.18.42.0/24), ...


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Even if this is an old post, I'd like to give an answer as an detailled answer was not yet priveded and it is still the first Google result. Correct me if I'm wrong, I'm still learning too. The expression word is kind of confusing. Data Offset means the WHOLE Header content. The Offset, after which the Data starts. As the Header maximum size can be up to 60 ...


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