3.0 Networking

3.1 Troubleshoot client-side connectivity issues using appropriate tools

• TCP/IP settings
  • Gateway
  • Subnet mask
  • DNS
  • DHCP (dynamic vs.static)
  • NAT (private and public)
• Characteristics of TCP/IP
  • Loopback addresses
  • Automatic IP addressing
• Mail protocol settings
  • SMTP
  • IMAP
  • POP
• FTP settings
  • Ports
  • IP addresses
  • Exceptions
  • Programs
• Proxy settings
  • Ports
  • IP addresses
  • Exceptions
  • Programs
• Tools (use and interpret results)
  • Ping
  • Tracert
  • Nslookup
  • Netstat
  • Net use
  • Net /?
  • Ipconfig
  • telnet
  • SSH
• Secure connection protocols
  • SSH
  • HTTPS
• Firewall settings
  • Open and closed ports
  • Program filters

3.2 Install and configure a small office home office (SOHO) network

• Connection types
  • Dial-up
  • Broadband
    • DSL
    • Cable
    • Satellite
    • ISDN
  • Wireless
    • All 802.11
    • WEP
    • WPA
    • SSID
    • MAC filtering
    • DHCP settings
  • Routers / Access Points
    • Disable DHCP
    • Use static IP
    • Change SSID from default
    • Disable SSID broadcast
    • MAC filtering
    • Change default username and password
    • Update firmware
    • Firewall
  • LAN (10/100/1000BaseT, Speeds)
  • Bluetooth (1.0 vs. 2.0)
  • Cellular
  • Basic VoIP (consumer applications)
• Basics of hardware and software firewall configuration
  • Port assignment / setting up rules (exceptions)
  • Port forwarding / port triggering
• Physical installation
  • Wireless router placement
  • Cable length