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Configuring Routers

Configuring Routers. I’ve got to program a router! . What do I have to do. Log on to the router. Router> Router>enable Router# Router#config t. Config t is the place to be!. Name the router!. Step One. Router(config)#hostname Lab-A. Lab-A.

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Configuring Routers

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  1. Configuring Routers

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

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

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

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

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

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

  8. 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.

  9. We use Serial0 • Lab-A(config-if)#clock rate 56000

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

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

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

  13. Like people, routers have to talk to one another! Step Four Set up routing protocols

  14. Routing Protocols: RIP RIPv2 IGRP EIGRP OSPF

  15. 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)

  16. 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#

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

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

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

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

  21. 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

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

  23. Check and save your configuration (Step 8) • Router#show run (Check) • Router#copy run start (Save)

  24. 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)

  25. Let us review • 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

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

  27. You’re Through!

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