Used in CompTIA certification classes by full time contracted CompTIA trainer, Daryl B. Heim.

3. ISP I’m on camera so I better stay off the couch!

4. ISP

5. ISP xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx Router implementing PAT =

6. ISP Port Forwarding vs Triggering http://publicIP:1111 SOCKET

7. ISP Port Forwarding vs Triggering http://publicIP:1112 SOCKET

8. ISP Port Forwarding vs Triggering http://publicIP:1112 SOCKET Gaming computer

9. Port Forwarding

10. Port Triggering

11. ISP Proxy Server implementing NAT in DMZ I nternal External xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx = xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx = xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx = xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx = xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx Pool

12. How your computer turns a URL into an internet host address DNS Namespace

13. ISP Proxy Server implementing NAT in DMZ System checks it’s own host name System checks it’s resolver cache System checks a proxy (if configured) System checks it’s HOSTS file (static text) System checks DNS servers

14. Defaults Physical Encryption Other