IP add192.168.1.1255.255.0 sets the IP address of vlan 1. Typically, Layer 2 switches are used to manage ip addresses.
Int aux 1/0/0 auxiliary port. Rarely used, it can be used as an asynchronous port.
Int e 1/0/ 1 enters the 1 port of the board 1 slot 0.
Port access vlan 50 assigns the port to vlan 50.
int e 1/0/ 1
Int e 111enters the port of slot1.
The port link trunk port is set to trunk as a port for connecting other switches, which can encapsulate vlan tags.
Port trunking allows vlan all to allow this port to pass all vlan numbers.
Int e 11/2 enters port 2 of slot1.
Port link relay as above
Port trunking allows vlan all the same as above.
Shut down closes the port, which must be opened manually before it can be used.
Int e 1/2/2 is also a port.
Turn it off.
Int null0 null is a black hole interface, and all data sent to this port is discarded.
Ftp server enables ftp service, which is usually used to update software.
Permission setting of user interface aux 0 aux interface
User interface vty 0 4 settings for remote login users. 0-4 ***5 users can be online at the same time.
Authentication Mode scheme The authentication method is scheme, and this command can also be used by default.
Radius scheme system defaults to local user authentication.