Update the public IP address of a Cisco Router

Update the public ip address of the Cisco router. First, confirm how your network is going. Here we will talk about the configuration based on our network: first, remove the default route no ip route 0.0.0.0 0.0.0.0 xxx. xxx. xxx. xxx adds the new default route www.2cto.com ip route 0.0.0.0 0.0.0.0 xxx. xxx. xxx. xxx then remove the ACL to overwrite the no ip nat inside source list 1 pool BJ. RK overload removes the ip address pool no ip nat pool BJ. RK xxx. xxx. xxx. xxx. xxx. xxx. xxx netmask subnet mask adds a new address pool www.2cto.com ip nat pool BJ. RK xxx. xxx. xxx. xxx. xxx. xxx. xxx netmask subnet mask add ACLip nat inside source list 1 pool BJ. RK overload is used to modify the public network interface address int f0/0no ip address xxx. xxx. xxx. xxx subnet mask ip address xxx. xxx. xxx. xxx subnet mask exit now you can test whether the computer in the acl can access the network. Otherwise, you can restart the router at this time,
Do not write it into the running configuration. Make sure that there is no error before wr. Wr