Networking and VPN: From IP Addressing to WireGuard, OpenVPN and IPsec Tunnels
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Lesson 2 of 13 · Fundamentals

IPv4 addressing, masks, CIDR and subnet calculation

1 h Debian 12

Objective

For any IPv4 address and its prefix, be able to find the network address, the broadcast address, the host range and the number of hosts; then split an address block into subnets that match the needs of each site. This is the most requested skill in technical networking interviews.

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