You asked your assistant to implement port address translation on the edge router of your network, which uses the S0 interface to connect to the ISP. When she is finished, you review the configuration by executing the show run command and receive the following results related to the configuration:
Which of the following statements are true of the configuration?
- the wrong interfaces are configured as inside and outside
- the command establishing the pool of public IP addresses is incorrect
- the ip nat inside source list command references a non-existent access list
- the ip nat inside source list command references a non-existent NAT pool
The wrong interfaces are configured as inside and outside. The Serial 0 interface which leads to the ISP should be set as outside, and the E0 interface should be the inside address. As it is set now, these settings are reversed.
The command establishing the pool of public IP addresses is correct. It establishes a pool of one public IP address, which is what you would do if you were configuring PAT. PAT uses a single public IP address for all translations.
The ip nat inside source list command references a correct access list number 7 and a correct NAT pool name of ourpool. The access list is used to determine computers that are allowed to have their traffic translated.
Configure and verify IPv4 Network Address Translation (NAT)