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DHCP - DORA Process

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 DHCP - DORA Process DORA      DORA is the process that DHCP employs (Dynamic Host Configuration Protocol). It's used to provide clients/host machines with their IP addresses. It is divided into four phases and acquires the IP address from a centralized server. D-Discover O-Offer R-Request A-Acknowledgment [BROADCAST] DHCP Discover The first communication in the DORA Process is the Discover message, which is used to locate the DHCP Server in the network. The host will broadcast a Discover message over the network to locate a DHCP Server. 255.255.255.255 is the packet address. Because the host does not have an IP address, the IP is currently 0.0.0.0. PORTS [at the client - 68] / [at the server - 67]. The server will use the host's MAC Address to reach out to it. Transaction ID: which maintains the specific DHCP session between client-server, which remains the same during [discover + offer] ] the processes. [UNICAST] DHCP Offer When the server receives the Discover Request, it se

Types of Routing

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Network connections  Network connections are the types of connections through which a network connects to the internet or the local isp. It ensures the security of the network and privacy. There are four types of network connections  NAT CONNECTION BRIDGE CONNECTION  NAT + BRIDGE CONNECTION DOUBLE NAT CONNECTION NAT connection:     NAT connection is abbreviated as National Address Translation, it converts the public IP address to a private IP address.      i t adds security to the network by keeping the private IP addresses hidden from the outside world. Types of NAT Open NAT: This implies that your gaming console can connect to other people's games, host games, and other users can find and connect to the game you're hosting. Moderate NAT: This indicates that your connection to other players is neither restricted nor unrestricted. You'll be able to communicate with other players, but some features will be restricted. Strict NAT - This means that you have limited connectivit