CCNA读书笔记（三）

Chapter 3  Subnetting, variable length subnet masks(vlsms),and troubleshooting TCP/IP

Subnetting basics

1. determine the number of required network IDs;

2. determine the number of required host IDs per subnet

3. based on the above requirements ,create the follow

i. one subnet mask for your entire network

ii. a unique subnet ID for each physical segment

iii. a range of host IDs for each subnet

 

classless inter-domain routing (CIDR)

the slash notation

 

variable length subnet masks(VLSMs)

略

 

Troubling IP addressPing

Traceroute

tracert

arp –a

show ip arp

ipconfig /all