Name___________________________________________ CCNA4 MODULE 1 SCALING IP ADDRESSES Module QUESTION 1.1.1 What does RFC 1918 do? ANSWER What are these addresses used for? What are the address ranges? What organizations register Internet addresses? Who can use private Internet addresses? What does NAT do? 1.1.2 How does NAT allow private addresses to communicate over the Internet? Where is a NAT device usually located? What is the difference between an inside local address and an inside global address? What is the difference between an outside local address and an outside global address? 1.1.3 When is static NAT useful? How is dynamic NAT different from static NAT? S3 BRIDGE IGRP v.3.0 1 What does PAT do? (Port Address Translation) Realistically, how many ports can be assigned a single IP address? What are the benefits of NAT? 1.1.4 1.1.5 1.1.6 1.1.7 Complete labs on NAT and PAT configuration on the router Complete labs verifying NAT and PAT What 2 commands are used to troubleshoot NAT and PAT? What are the 3 big advantages of NAT? What are some disadvantages of NAT? What types of traffic is NOT supported by NAT? S3 BRIDGE IGRP v.3.0 2 1.2.1 Which RFC describes DHCP protocol? Why is DHCP helpful? What types of equipment do not use DHCP? What happens when the lease expires on a client’s allocated IP? Where are DHCP services usually located? What does DHCP use for its transport protocol? Which ports are involved? What was BOOTP developed for: What are the 4 basic IP parameters? How does BOOTP choose an iP for the client? 1.2.4 Which RFC contains the paramenters for dynamic allocation? What are the main parameters for the client? What is a DHCPDISCOVER? What happens if the DHCP server contacted cannot service the request? What is a DHCPOFFER? What is a DHCPREQUEST? What is a DHCPACK? S3 BRIDGE IGRP v.3.0 3 S3 BRIDGE IGRP v.3.0 4 What is a DHCPDECLINE? What is a DHCPRELEASE? 1.2.5 Is it possible to assign a static address that is in the DHCP server’s address pool? What is the default number of pings used to check this type of situation? What command creates the address pool? Which command excludes certain addresses from the pool? What else can be set from the DHCP config mode? What command disables DHCP? What command renables DHCP? 1.2.6 What command verifies DHCP operation? What command verifies messages? 1.2.7 What command is used to troubleshoot DHCP server operation? S3 BRIDGE IGRP v.3.0 5