ccna practical cisco routers phần 5 pptx

... with IP Addresses CHAPTER 10 Table 10.2 Basic Subnet Masks Class Subnet Mask A 255 .0.0.0 B 255 . 255 .0.0 C 255 . 255 . 255 .0 In the basic subnet masks (where no subnetting has been done) the octet either ... asked to provide the password to enter the router. 1 6 0 Platform The type of Cisco router. 250 5 (the neighbor is a 250 5 router) Port ID The interface used on the Serial 0 neighbor...

Ngày tải lên: 14/08/2014, 13:20

... Selected Cisco Router Specifications 337 Router Selection 338 Cisco 750 0 Routers 338 Cisco 450 0 Routers 339 Cisco 250 0 Routers 340 Cisco 1000 Routers 341 A Final Note 342 Glossary 343 Index 359 1 ... 45 TCP/IP 45 IPX/SPX 48 AppleTalk 49 3 Wide Area Networking 53 Understanding Wide Area Connectivity 54 Getting Connected 54 Dial-Up Connections 55 Leased Lines 56...

Ngày tải lên: 14/08/2014, 13:20

... popular packet switching protocols. X. 25 X. 25 was designed for use over the PDNs that were operated by companies such as AT&T and General Electric. The X. 25 protocol stack provides point-to-point ... a PDN via a router. The X. 25 protocol can then handle a connection between these two DTE devices on the WAN, so that they can exchange data (see Figure 3 .5) . The X. 25 protocol st...

Ngày tải lên: 14/08/2014, 13:20

... fraction 255 / 255 represents a 100% reliable link. PART I Networking Overview CHAPTER 5 Ho w a Rout er Wo r k s IGRP is all Cisco Because IGRP was developed by Cisco and remains a Cisco proprietary protocol, ... consist of 255 hops or fewer. This means that theoretically packets could be moved between 255 devices as the packets move from source to desti- nation. This is why the n...

Ngày tải lên: 14/08/2014, 13:20

... and ready for deployment on the network. Figure 7.1 shows the front and back of the Cisco 250 5 router. The 250 5 router provides only three interfaces, one LAN and two serial interfaces, and is ... Cisco router 60-pin serial port connector. The Cisco 250 5 Router (shown in Figure 7.6) supplies two serial ports. The serial port supports several different signaling standards including V....

Ngày tải lên: 14/08/2014, 13:20

... Hosts/Subnet 2 2 255 . 255 .192.0 16,382 6 3 255 . 255 .224.0 8,190 14 4 255 . 255 .240.0 4,094 30 5 255 . 255 .248.0 2,046 62 6 255 . 255 . 252 .0 1,022 126 7 255 . 255 . 254 .0 51 0 254 8 255 . 255 . 255 .0 254 PART III Rout ... Hosts/Subnet 2 2 255 .192.0.0 4,194,302 6 3 255 .224.0.0 2,097, 150 14 4 255 .240.0.0 1,048 ,57 4 30 5 255 .248.0.0 52 4,286 62 6 255 . 252 .0.0 262,142 12...

Ngày tải lên: 14/08/2014, 13:20

... from the pool of 255 numbers—0, 254 , and 255 . The node number 0 isreserved for temporary use by nodes attempting to determine which network they reside on. Node numbers 254 and 255 are used in broadcast messages ... Figure 13 .5 shows two different sites connected using 250 5 routers. PART III Routing LAN Protoco ls CHAPTER 13 Routing AppleTa l k FIGURE 13 .5 Two AppleTalk LANS can b...

Ngày tải lên: 14/08/2014, 13:20

... lists all the routers in the 250 0 series family (see Figure 16.2). 2. To add a 250 5 router to the diagram, click the 250 5 icon and then click in the Diagram window. The Cisco 250 5 Router Wizard ... devices: a 250 5 router and an Ethernet LAN. Adding routers to the Diagram window 1. First, you will add a 250 5 router to the diagram. Scroll down through the Device list until you see t...

Ngày tải lên: 14/08/2014, 13:20

... pounds Cisco 250 0 Routers The Cisco 250 0 series routers are inexpensive routers and are con- sidered access-level routers. Figure B.2 shows the 250 5 router, and Table B.3 explains the 250 5 specifications. ... Cisco Router S p e c i f i c a t i o n s Router Selection • Cisco 750 0 Routers • Cisco 450 0 Routers • Cisco 250 0 Routers • Cisco 1000 Routers • A Fina...

Ngày tải lên: 14/08/2014, 13:20

... purchase, 1 15 Cisco 1000 routers, 341 Cisco 250 0 routers, 340 Cisco 250 5 routers, 112 Cisco 450 0 routers, 339-340 Cisco 750 0 routers, 338 Cisco IOS, 1 15, 342 console connecting, 116-117 terminal ... routers, 341 Cisco 250 0 routers, 340 Cisco 250 5 routers, 112 Cisco 450 0 routers, 339-340 Cisco 750 0 routers, 338 Cisco IOS, 1 15, 342 selecting, 338 wei...

Ngày tải lên: 14/08/2014, 13:20