ping each other. Also DCE cable is used to connect the Routers. The serial link should have the speed of 64K also apply vty password and enable secret password. Set up the Routers so that they can manage via Telnet. First of all select the PCs and the routers connect the ports to the router, double click on router, switch off the router if it is on. Then select the serial port according to the routers, switch on the router. Select the cable to connect the Routers. Router to Router connections are made by the serial cable, so go on first Router select the serial port as s0/1/0 in the scenario, then go to the other Router and connect the serial cable at interface s1/0. Accordingly connect the third Router with interfaces s1/1 and s1/2. Now connect the PCs to the routers, to do this first select the console cable, click on the PC select RS232 option, then connect it on the Router and select console cable. Now select cross- over cable on the PC select Fast Ethernet option and on the Router select f0/0 option now as the PCs and Routers are connected to each other assign IP addresses to the PCs and the Routers. According to the fig set the IP addresses of the PCs→ double click on the PC→ choose the option of desktop→ IP configuration. Now set the IP address, subnet mask, and the default gateway. Like wise set the IP address of all the PCs. Now set the IP address of the interfaces of router.
3.15.2 Commands to assign IP addresses to the interfaces: At Router1: Router> Router>enable Router#configure terminal Router(config)#interface f0/0 Router(config-if)#ip address 10.0.0.1 255.0.0.0 Router(config-if)#no shutdown