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To configure the IP address 172.16.50.1/20 on an interface of router "R1", which IOS command, is issued at the command line?
R1(config-if)# ip address 172.16.50.1 255.255.255.240
R1(config-if)# ip address 172.16.50.1 255.255.240.0
R1(config)# ip address 172.16.50.1 255.255.240.0
R1(config-if)# ip address 172.16.50.1 255.255.224.0
R1(config-if)# ip address 172.16.50.1/20
R1(config)# ip address 172.16.50.1 255.255.0.0
Important configurations on an interface are; network layer addresses, bandwidth, media type and others. To configure an IP address under an interface use the "ip address" command from the interface configuration mode. The ip address [address mask] starts the IP process on the interface. The address mask must be configured according to the network and cannot be configured with CIDR notation.
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