CIS 170F: Windows 7 Administration

Week 8

Networking
IP Version 4
Troubleshooting IPv4

  • To successfully troubleshoot IPv4-based communications, the technician should follow an incremental process that has proven successful in most situations.
  • The following common troubleshooting steps are performed:
    • Confirm current settings: The existing IPv4 should be confirmed.
    • Validate IPv4 connectivity: If all settings appear correct, the ping utility can be used to confirm that the computer can ping its own loopback address (127.0.0.1).
    • Verify DNS name resolution: Confirm the correct DNS servers are specified on network settings manually or automatically through DHCP with the iconfig utility.
    • Verify data connections: If the basic IP communications and name resolution appear healthy, the problem may be a result of data filtering by a firewall restriction or corruption.