... servers. NetBEUI is used to access all servers. Figure 5.11 showsour third example. Mastering Cisco Routers, Second Edition Figure 6.1: OSPF used to propagate information between autonomous systemsArea ... supported by Cisco routers. This means that if you have an environment ofmixed router vendors, EIGRP can be a little more difficult to implement. When communicating with non -Cisco routers, EIGRP ... whether the frame isChapter 7: Cisco IOS Cisco routers are extremely flexible devices. The number of configurable options can be downright daunting. Forexample, the Cisco IOS Software Command Summary...