Chapter 9. Single-Area OSPF
This chapter provides information and commands concerning the following topics:
▪ Using wildcard masks with OSPF areas
▪ Authentication: Using MD5 encryption
▪ Timers
▪ Verifying OSPF configuration
▪ Configuration example: Single area OSPF
Configuring OSPF

Using Wildcard Masks with OSPF Areas
When compared to an IP address, a wildcard mask identifies which addresses get matched for placement into an area:
▪ A 0 (zero) in a wildcard mask means ...
Get CCNA Routing and Switching Portable Command Guide, Third Edition now with the O’Reilly learning platform.
O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.