200-301 Question 7
Select 3A network administrator is configuring a router to connect two different subnets in an office environment. The router must forward packets between the subnets and provide basic security using an access control list (ACL). Which of the following steps should the administrator take to ensure proper configuration?
- A
Assign IP addresses to the router interfaces corresponding to each subnet
- B
Enable routing between the interfaces using a routing protocol
- C
Apply an ACL to filter traffic on the router interfaces
- D
Configure a DHCP server on the router to dynamically assign IP addresses to devices on both subnets
- E
Disable NAT (Network Address Translation) to allow local subnet communication
Show answer and explanation
Correct answers: A, B, C
Explanation
To configure a router for inter-subnet communication, the administrator must assign IP addresses to the interfaces, enable routing between the subnets, and apply ACLs for basic security. DHCP configuration and NAT settings are not relevant to the specific task of routing and securing traffic between internal subnets.
- A. Correct.
Assigning IP addresses to the router interfaces is necessary to establish connectivity with each subnet and ensure proper communication.
- B. Correct.
Enabling routing between interfaces is required for the router to forward packets between the subnets. This can be done using static routes or a routing protocol.
- C. Correct.
Applying an ACL allows the administrator to implement basic security by filtering traffic based on defined criteria, such as source or destination IP addresses.
- D. Incorrect.
Configuring a DHCP server is not strictly required for routing between subnets. DHCP is used for dynamic IP address assignment, which is unrelated to routing between subnets.
- E. Incorrect.
Disabling NAT is unnecessary in this scenario. NAT is used for translating private IP addresses to public ones, and it does not affect communication between local subnets.