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200-301 · Question #1531

Lab Simulation 28 Guidelines This is a lab item in which tasks will be performed on virtual devices. - Refer to the Tasks tab to view the tasks for this lab item. - Refer to the Topology lab to access

This lab simulation tests the ability to configure NAT (dynamic one-to-one mapping using NAT pool), DHCP client configuration, and NTP server/client relationships on Cisco routers. The correct implementation requires: (1) creating a standard ACL named XLATE to permit R3's source

Submitted by femi9· Mar 5, 2026Cisco CCNA - IP Services (Domain 5): Configure and verify NAT, DHCP client/server operations, and NTP synchronization on Cisco IOS devices

Question

Lab Simulation 28 Guidelines This is a lab item in which tasks will be performed on virtual devices. - Refer to the Tasks tab to view the tasks for this lab item. - Refer to the Topology lab to access the device console(s) and perform the tasks. - Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window. - All necessary preconfigurations have been applied. - Do not change the enable password or hostname for any device. - Save your configurations to NVRAM before moving to the next item. - Click Next at the bottom of the screen to submit this lab and move to the next question. - When Next is clicked, the lab closes and cannot be reopened. Topology Tasks IP connectivity between the three routers is established. IP Services must be configured in the order presented to complete the implementation. 1. Configure dynamic one-to-one address mapping on R2 using a standard list named XLATE, which allows all traffic to translate the source address of R3 to a pool named test_pool using the 10.10.10.0/24 network for traffic sent from R3 to R1. Avoid using an NVI configuration. Verify reachability by sending a ping to 192.168.100.1 from R3. 2. Configure R3 to dynamically receive an IP address on Ethernet0/2 from the DHCP server. 3. Configure R1 as an NTP server and R2 as a client, not as a peer, using the IP address 10.1.2.1. 4. Configure SSH access from R1 to R3, while excluding access via other remote connection protocols using the user root and password s3cret on router R3 using RSA. Verify connectivity from router R1 to R3 using a destination address assigned to interface E0/2 on R3. Answer:

Exhibits

200-301 question #1531 exhibit 1
200-301 question #1531 exhibit 2

Explanation

This lab simulation tests the ability to configure NAT (dynamic one-to-one mapping using NAT pool), DHCP client configuration, and NTP server/client relationships on Cisco routers. The correct implementation requires: (1) creating a standard ACL named XLATE to permit R3's source network, defining a NAT pool named 'test_pool' with the 10.10.10.0/24 range, and binding them with 'ip nat inside source list XLATE pool test_pool' while designating inside/outside interfaces; (2) configuring 'ip address dhcp' on R3's Ethernet0/2 interface; and (3) using 'ntp master' on R1 and 'ntp server [R1-IP]' on R2. These are standard IOS commands that follow Cisco's prescribed syntax for IP services configuration, and each task must be completed in order since later tasks may depend on connectivity established by earlier ones.

Topics

#NAT/PAT#DHCP#NTP#IP Services

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