This command sets the OSPF Authentication Type and Key for the specified interface or range of interfaces. The value of type is either none, simple or encrypt. The key is composed of standard displayable, noncontrol keystrokes from a Standard 101/102-key keyboard. The authentication key must be 8 bytes or less if the authentication type is simple. If the type is encrypt, the key may be up to 16 bytes. If the type is encrypt a keyid in the range of 0 and 255 must be specified.
Unauthenticated interfaces do not need an authentication key or authentication key ID. There is no default value for this command.
| Format | ip ospf authentication {none | {simple key} | {encrypt key keyid}} |
| Mode | Interface Config |
