| From time to time, it is a good idea to check and see that the router's automated key generation and exchange mechanisms are working properly. This can be done by viewing the public keys that are stored on the router and ensuring that they are actually being created and exchanged at the proper intervals. We can do this with the show command. For example, the command show crypto pubkey displays all public keys known to the router. Also, the command show crypto pubkey name keyname displays public keys by keyname.