This course builds on the foundation developed in CISS 120 and extends the student's capability to understand and manage data networks. The course covers four general areas “ Local Area Network (LAN) management, intermediate routing with IPv4 and IPv6, Wide Area Network (WAN) technologies, and network security. The LAN management portion explores optimizing LAN behavior through redundancy, L2 security, and wireless access, and covers the operation and configuration of common LAN protocols such as Dynamic Host Control Protocol (DHCP) and Network Address Translation (NAT). The routing topics are focused on understanding and implementing OSPF and EIGRP for both IPv4 and IPv6 in an enterprise network. The WAN Technology component covers layer 2 protocols such as PPP and Frame Relay, and examines the most widely used WAN access technologies, Access Control Lists and their application to network security, Network Address Translation (NAT), and an introduction to Internet Protocol version 6 (IPv6). This hands-on course utilizes the college's networking laboratories and the Cisco Network Academy resources. Successful completion of CISS 120 and CISS 121 provides the student with all requisite knowledge for the topics covered in the Cisco Certified Network Associate (CCNA) certification exam. Note: The Cisco certification exams are not offered through the college since they are industry-controlled certifications.