The exhibit consists of a network diagram that shows R1 with three network connections: two Ethernet segments and a WAN link. The WAN link connects R1 to a second router R2. R2 is the DCE on the WAN link. The configuration shown is as follows:
R1(config)# interface serial 0/0/0 R1(config-if)# description Link to R2 R1(config-if)# ip address 184.108.40.206 255.255.255.252 R1(config-if)# exit R1(config)#
Refer to the exhibit. A network administrator has configured R1 as shown. When the administrator checks the status of the serial interface, the interface is shown as being administratively down. What additional command must be entered on the serial interface of R1 to bring the interface up?
- IPv6 enable
- clockrate 128000
- no shutdown
Explanation: By default all router interfaces are shut down. To bring the interfaces up, an administrator must issue the no shutdown command in interface mode.
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