#How to check mac address of cisco router serial#
UpaaeRouter1> enable // entering enable/privileged mode UpaaeRouter1# configure terminal // entering global configuration mode UpaaeRouter1(config)# interface serial 0/0/0 // 0/0/0 specifies the port number UpaaeRouter1(config-if)# no shutdown // command for enabling cisco router interface no shutdown is the command for enabling serial interface. How to Enable Cisco Router Interface:īy default all of the Cisco router’s interfaces are in down state for security sake, if you want to enable any interface you need to be at the line interface mode, in this example we will enable serial 0/0/0 interface. UpaaeRouter1(config-if)# ip address 192.168.1.5 255.255.255.0Ĭonfirming if ip address is assigned successfully.Īs you can see that serial interface is properly configured but it is still administratively down, in order to get any interface of cisco router working we need to enable that specific interface. UpaaeRouter1(config)# interface serial 0/0/0 // 0/0/0 specifies the port number UpaaeRouter1# configure terminal // entering global configuration mode UpaaeRouter1> enable // entering enable/privileged mode In this case we are going to set ip address for serial 0/0/0 interface. How to configure serial interface on cisco router:īefore executing the commands for setting the ip address for serial interface you need to be at the line configuration mode of that specific interface.įor configuring IP Address for any interface you must be in global configuration mode and then enter to the line configuration mode of required interface. Switch to enable mode, type “ show ip interface brief” command and press enter, just like the screenshot below. UpaaeRouter1> enable // entering to enable/privileged mode UpaaeRouter1# configure terminal // entering to global configuration mode UpaaeRouter1(config)# interface fastethernet 0/0 // 0/0 specifies the port number UpaaeRouter1(config-if)# ip address 10.1.1.5 255.0.0.0Ĭonfirm if ip address is assigned successfully. How to configure Ethernet Interface on Cisco Router:įor configuring any interface of a router you should be at global configuration mode.Īssuming you are at user exe mode. UpaaeRouter1# show ip interface brief // display all the ip interface of this router UpaaeRouter1> enable // go to enable mode/ privileged mode. Open your routers command line interface. IP addresses of each functional and configured interface of a router must be different, “show ip interface brief” command will display all the configured interfaces along with their assigned ip addresses. You have to be at the enable mode/privileged mode for executing this command, this command can also be used to know if an interface is enabled or administratively down. Show ip interface brief // this is an enable/privileged mode command. There is a command which displays all the IP interfaces, which is helpful in troubleshooting and knowing the IP address used on a specific interface.
#How to check mac address of cisco router how to#
And How to Enable an interface of Cisco router.How to configure Fast Ethernet interface of a Cisco Router.How to configure serial interface of a Cisco router.Configuring and checking router interfaces are the main tasks of a network engineer, whether it’s the initial configuration of a router or trouble shooting the network connectivity.