What we will be able to do?

1. What we will be able to do?

2. Fast Track Introduction Router Con0 is now available Press RETURN to get started. Router>enable Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#interface e0 Router(config-if)#ip address 191.20.10.1 255.255.255.0 Router(config-if)#no shutdown %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0, changed state to up %LINK-3-UPDOWN: Interface Ethernet0, changed state to up Router(config-if)#^Z %SYS-5-CONFIG_I: Configured from console by console Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#interface s0 Router(config-if)#ip address 192.30.10.5 255.255.255.0 Router(config-if)#no shutdown %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to up %LINK-3-UPDOWN: Interface Serial0, changed state to up Router(config-if)#^Z %SYS-5-CONFIG_I: Configured from console by console Router#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route, o - ODR Gateway of last resort is not set C 191.20.10.0 is directly connected, Ethernet0 C 192.30.10.0 is directly connected, Serial0 Router#

3. Cisco Router User Interface • Cisco Internetwork Operating System (IOS) • Provides a command-line interface (CLI), which allows network operators to check the status of the router and network administrators to manage and configure the router • The software that interprets the command is called the command executive (or EXEC)

4. Overview Of Router Modes

5. Editing and Help Features • Type in (?) at any prompt to list all the commends available form that prompt. Router>? Exec commands: access-enable Create a temporary Access-List entry --More--. • Type in (?) after a command to find the next command in the string. Router>ping ? WORD Ping destination address or hostname apollo Apollo echo appletalk Appletalk echo . . • To find commands that starts with certain letter, use the letter and question mark (?). Router>c? clear clock configure connect copy

6. Command History • Up arrow last command entered • Down arrow previous command entered • show history last 10 command • show terminal terminalconfigurations • Enhanced Editing Commands

7. Setting Passwords • There are five passwords that can be set on a Cisco router:

8. Enable Password Router(config)#enable password easy Router(config)#enable secret easy • Auxiliary Password Router>enable Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#line aux ? <0-0> First Line number Router(config)#line aux 0 Router(config-line)#login Router(config-line)#password easy • Console Password Router(config)#line console ? <0-0> First Line number Router(config)#line console 0 Router(config-line)#login Router(config-line)#password easy • Telnet Password

9. Telnet Password Router>enable Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#line ? <0-6> First Line number aux Auxiliary line console Primary terminal line vty Virtual terminal Router(config)#line % Incomplete command. Router(config)#line vty ? <0-197> First Line number Router(config)#line vty 0 4 Router(config-line)#login Router(config-line)#password easy Router(config-line)# • Encrypting Your Password Router#show running-config Router#configure terminal Router(config)#service password-encryption Router(config)#no service password-encryption Router(config)#^Z

10. Banners Router>enable Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#banner ? LINE c banner-text c, where 'c' is a delimiting character exec Set EXEC process creation banner incoming Set incoming terminal line banner login Set login banner motd Set Message of the Day banner Router(config)#banner motd # Enter TEXT message. End with the character '#'. Get away from my router! # Router(config)#^Z %SYS-5-CONFIG_I: Configured from console by console Router#exit Router Con0 is now available Press RETURN to get started. Get away from my router. • Exec Banner • Incoming Banner • Login Banner

11. Interfaces • Ethernet, serial, console, and auxiliary interfaces, the router can have other types of interfaces, including: • Token Ring • Basic Rate Interface (BRI) • Asynchronous Transfer Mode (ATM) • Fiber Distributed Data Interface (FDDI) • Channel Interface Processor (CIP) for System Network Architecture (SNA) • High-Speed Serial Interface (HSSI)

13. Bringing Up an Interface and Configuring an IP Address Router>enable Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#interface serial ? <0-1> Serial interface number Router(config)#interface serial 0 Router(config-if)#ip address 172.16.10.2 255.255.255.0 Router(config-if)#no shutdown %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to up %LINK-3-UPDOWN: Interface Serial0, changed state to up Router(config-if)#^Z Router#

14. Host Names and Descriptions • Router>enable • Router#configure terminal • Enter configuration commands, one per line. End with CNTL/Z. • Router(config)#hostname nopass • nopass(config)#interface e0 • nopass(config-if)#description irondoor • nopass(config-if)#^Z • %SYS-5-CONFIG_I: Configured from console by console • nopass# • nopass#

15. Viewing and Saving Configuration nopass#copy running-config startup-config Destination filename [startup-config]? nopass#show running-config nopass# ping ? nopass#show interface s0 nopass#show ip interface

16. Cisco Router User Interface • A router can be accessed in several different ways • Each of these methods involves access through on of three lines • Network administrators typically access the router directly through the console port (also known as the console) located on the back of the router

17. Cisco Router User Interface • The console port connects directly to a PC through an RJ-45 to RJ-45 rollover cable with an RJ-45 to DB-9 or RJ-45 to DB-25 connector included with the router • Whether you select the DB-9 or DB-25 connector will depend on the type of port on the back of the router • The second line used to access the router is through the auxiliary port (AUX) • The AUX is also located on the back of the router

18. Cisco Router User Interface

19. Cisco Router User Interface • In addition to the AUX and console ports, five virtual terminals (VTY) can be used to configure the router • Accessing the router through the VTY lines is the same as telnetting to the router • The router can also obtain configuration information from a Trivial File Transfer Protocol (TFTP) server

20. Cisco Router User Interface

21. Connecting via Terminal Programs • When configuring the router through the console or AUX ports, you must first make the physical connection • Then you can access the router through a terminal program • There are many different terminal programs that you can use

22. Switch User Interface • There are two types of operating systems in use on Cisco switches: • IOS-based • Used by Cisco 1900, 2820, and 2900 switches • Catalyst 1900 IOS-based operating system is the switch model that appears on the CCNA exam • Set-based • Employed by Cisco 1984G, 2926, 4000, 5000, and 6000 series switches

23. Router Components:Flash Memory • Erasable, programmable, read-only memory (EPROM) • Not typically modified during normal operations • Can be upgraded or erased when necessary • Content of flash memory is maintained even when the router is rebooted

24. Router Components:Flash Memory

25. Router Components:NVRAM • Nonvolatile random access memory (NVRAM) • Special type of RAM • Not cleared when the router is rebooted • Startup configuration for the router is stored in NVRAM by default • Stores all the user-defined configuration information for the router

26. Router Components:RAM/DRAM • Random access memory (RAM) • Also known as dynamic random access memory (DRAM) • A volatile hardware component • Information is not maintained in the event of a router reboot • Similar to how RAM operates in a PC