🖥️ CompTIA A+ Lab 6.2.7 — Configure IP Addresses скачать в хорошем качестве

🖥️ CompTIA A+ Lab 6.2.7 — Configure IP Addresses

🖥️ CompTIA A+ Lab 6.2.7 — Configure IP Addresses This lab demonstrates how to assign and configure IP addresses on a computer or network device to enable proper communication on a local network and the internet. ________________________________________ 🧠 Key Concepts IP Address Overview: • An IP address uniquely identifies a device on a network. • IPv4 format: xxx.xxx.xxx.xxx (e.g., 192.168.1.10) • IPv6 format: xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx • Subnet mask defines the network portion vs host portion. • Default gateway allows communication outside the local network. CompTIA Exam Tip: Know how to configure static vs dynamic (DHCP) IP addresses, subnet masks, default gateways, and DNS settings. ________________________________________ ▶️ Step 1 — Identify Network Requirements • Determine whether the device should use: o Static IP: Manually assigned for servers or special devices o Dynamic IP (DHCP): Assigned automatically by router or DHCP server • Gather necessary info: IP address, subnet mask, default gateway, DNS servers ________________________________________ ▶️ Step 2 — Configure IP in Windows 1. Open Control Panel → Network and Sharing Center → Change adapter settings 2. Right-click the network adapter → Properties 3. Select Internet Protocol Version 4 (TCP/IPv4) → Properties 4. For Static IP: enter IP address, subnet mask, default gateway, and DNS servers 5. For DHCP: select “Obtain an IP address automatically” and “Obtain DNS server address automatically” ________________________________________ ▶️ Step 3 — Configure IP in macOS 1. Open System Preferences → Network 2. Select the network interface → Advanced → TCP/IP 3. Choose Manually for static IP or Using DHCP for automatic assignment 4. Enter IP address, subnet mask (Prefix length), router, and DNS ________________________________________ ▶️ Step 4 — Configure IP on Linux • Use ifconfig or ip command for temporary changes: sudo ip addr add 192.168.1.10/24 dev eth0 sudo ip route add default via 192.168.1.1 • Update /etc/network/interfaces or Netplan for permanent configuration ________________________________________ ▶️ Step 5 — Verify Configuration • Use ping to test connectivity to gateway and other devices: ping 192.168.1.1 ping 8.8.8.8 • Check IP settings: ipconfig (Windows) ifconfig or ip addr (Linux/macOS) ________________________________________ ▶️ Step 6 — Troubleshoot IP Issues • IP conflict → change address • Incorrect subnet → adjust subnet mask • Gateway unreachable → verify router and cabling • DNS issues → try public DNS (e.g., 8.8.8.8) ________________________________________ ⚠️ Important Notes for CompTIA A+ Exam • DHCP simplifies IP management for most devices. • Static IPs are used for servers, printers, and critical devices. • Verify IP, subnet mask, default gateway, and DNS to ensure connectivity. • Misconfigured IPs are a common cause of network connectivity issues. ________________________________________ #CompTIAaPlus #IPConfiguration #NetworkSetup #DHCP #StaticIP