Overview In part one of this chapter, we looked at the ACL concepts, we discussed how they worked and we topped it off with configuration of standard ACLs. In part 2, we will discuss extended ACLs and other ACL concepts, we will then configure extended ACLs and finish off with troubleshooting ACLs. Extended ACLs With […]
Overview In the last chapter, we looked at frame relay and discussed its importance in the WAN. In this chapter, we will look at some network security concepts that are vital in today’s world. We will look at some of the risks as well as the ways we can secure our devices, we will also […]
Overview In the previous chapter, we looked at the application layer and saw that it is the interface between the human network and the data network. In this chapter, we will look at the transport layer and discuss how it aids in communication. At the end of this chapter, you should be able to describe […]
Overview In the previous chapter we were introduced to computer networks and we got to know their importance in everyday lives. In this chapter, we will look at the layered models that are used in communication over networks. We will discuss the TCP/ip model and the OSI model to better understand how communication works. This […]