2. Configuring Routers

3. I’ve got to program a router! What do I have to do

4. Router> Router>enable Router# Router#config t Config t is the place to be! Log on to the router

5. Name the router! Router(config)#hostname Lab-A Step One Lab-A

6. Password protect the Privilege Mode Step Two Lab-A(config)#enable secret class enable secret 5 $1$emBK$WxqLahy7YOAf0nifub Results in: PasswordCommands

7. Configure the Interfaces Step Three Lab-A(config)#interface serial0 Lab-A(config-if)# (Note prompt change)

8. Address the Interface(S0) Lab-A(config-if)#ip address 201.100.11.1 255.255.255.0 Ip addressSubnet mask S0=201.100.11.1

9. Clock ticks MUST be set between routers on the interface with the serial cable DCE end. Serial0 is where the DCE connects in our lab.

10. We use Serial0  Lab-A(config-if)#clock rate 56000

11. Address the next Interface (E0) Lab-A(config-if)#ip address 192.5.5.1 255.255.255.0 Lab-A(config-if)#interface ethernet0 (This changes to program interface e0) S0=201.100.11.1 E0=192.5.5.1

12. Control z Lab-A# Lab-A#show running-config

13. Like people, routers have to talk to one another!

14. Step Four Set up routing protocols

15. Routing Protocols: RIPRIPv2 IGRPEIGRP OSPF

16. Set up the routing protocol Lab-A(config)#router rip Lab-A(config-router)# version 2 Lab-A(config-router)#network 192.5.5.0 Lab-A(config-router)#network 201.100.11.0 (Note prompt change)

17. Note!  You have to configure for EACH network  (remember network # is the “wire” #)  Each network is on a separate line  Hit Control z to activate and return to:  Lab-A#

18. Control Access Control and secure access from: CONSOLE VTY (telnet) AUX (modem)

19. Control Access Step Five Lab-A(config)#line console 0 Lab-A(config-line)#password cisco (Note prompt change) Lab-A(config-line)#login

20. Continue Lab-A(config)#line vty 0 4 Lab-A(config-line)#password cisco Lab-A(config-line)#login

21. Want to save time and move fast between routers? Step Six

22. Create a host file Lab-A(config)#ip host Lab-A 192.5.5.1 205.7.5.1 201.100.11.1 Lab-A(config)#ip host Lab-B 219.17.100.1 199.6.13.1 201.100.11.2 Lab-A(config)#ip host Lab-C 223.8.151.1 204.204.7.1 199.6.13.2 Lab-A(config)#ip host Lab-D 210.93.105.1 204.204.7.2 Lab-A(config)#control z

23. Turn on the interfaces:  Lab-A(config)#interface s0  Lab-A(config-if)#no shutdown  Lab-A(config-if)#interface e0  Lab-A(config-if)#no shutdown Step Seven

24. Check and save your configuration (Step 8)  Router#show run (Check)  Router#copy run start (S ave)

25. Let’s Review:  Step 1 – name router  Hostname xxxxx  Step 2 – set “privilege” password and encode it  Enable secret xxxxx  Step 3 – configure interfaces  Interface sX (or eX)

26.  Step 4 – Set the routing protocols  Router rip  Step 5 – Set who and where access comes from  Line console (vty)  Step 6 – Create a host file  Ip host xxx.xxx.xxx yyy.yyy.yyy  Step 7 – Turn on interfaces  Router(config-if)#no shutdown Let us review

27. Step 8:Check and Save your work!  Check your config  Router#show run  Save your configuration from RAM to NVRAM  Router#copy run start

28. You’re Through!