telnet. If configures like below, the system will only ask for password when anyone access. For example set the password as “1234”.

ERT805> enable

ERT805# config tERT805(config)# enable password 1234ERT805(config)#line vty 0 4

ERT805(config-line)# login

ERT805(config-line)# password ciscoERT805(config-line)# exiERT805(config)# exitERT805#

The password is set by the command “password” in vty and has no concern with what have been configured above by the command username. The following example shows the result that configure on above.

Router Software Version 4.2c on Hex_1f73 (3805a)

User Access Verification

Password:

ERT_805> enable

Password:

ERT_805#

The other method is force the network user to verify his username and password. For example

ERT805# config t

Enter configuration commands, one per line. End with CNTL/Z. ERT805(config)# username rr password cisco ERT805(config)# line vty 0 5

ERT805(config-line)# login localERT805(config-line)# exit

ERT805(config)# exit

ERT805#

The following example shows the result that configure on above:

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