Reference Guide

processes either IPv4 or IPv6 rules, but not both. Using this configuration, you can set up two different types of access
classes with each class processing either IPv4 or IPv6 rules separately.
To apply an IP ACL to a line, Use the following command.
● Apply an ACL to a VTY line.
LINE mode
access-class access-list-name [ipv4 | ipv6]
NOTE: If you already have configured generic IP ACL on a terminal line, then you cannot further apply IPv4 or IPv6
specific filtering on top of this configuration. Similarly, if you have configured either IPv4 or IPv6 specific filtering on a
terminal line, you cannot apply generic IP ACL on top of this configuration. Before applying any of these configurations,
you must first undo the existing configuration using the no access-class access-list-name [ipv4 | ipv6]
command.
To view the configuration, use the show config command in LINE mode.
DellEMC(config-std-nacl)#show config
!
ip access-list standard myvtyacl
seq 5 permit host 10.11.0.1
DellEMC(config-std-nacl)#line vty 0
DellEMC(config-line-vty)#show config
line vty 0
access-class myvtyacl
DellEMC(conf-ipv6-acl)#do show run acl
!
ip access-list extended testdeny
seq 10 deny ip 30.1.1.0/24 any
seq 15 permit ip any any
!
ip access-list extended testpermit
seq 15 permit ip any any
!
ipv6 access-list testv6deny
seq 10 deny ipv6 3001::/64 any
seq 15 permit ipv6 any any
!
DellEMC(conf)#
DellEMC(conf)#line vty 0 0
DellEMC(config-line-vty)#access-class testv6deny ipv6
DellEMC(config-line-vty)#access-class testvpermit ipv4
DellEMC(config-line-vty)#show c
line vty 0
exec-timeout 0 0
access-class testpermit ipv4
access-class testv6deny ipv6
!
Configuring Login Authentication for Terminal Lines
You can use any combination of up to six authentication methods to authenticate a user on a terminal line.
A combination of authentication methods is called a method list. If the user fails the first authentication method, Dell EMC
Networking OS prompts the next method until all methods are exhausted, at which point the connection is terminated. The
available authentication methods are:
enable
Prompt for the enable password.
line
Prompt for the password you assigned to the terminal line. Configure a password for the terminal line to
which you assign a method list that contains the line authentication method. Configure a password using
the password command from LINE mode.
local
Prompt for the system username and password.
none
Do not authenticate the user.
78 Management