Administrator Guide

To congure simple authentication, use the following command.
• Congure a simple text password.
INTERFACE-VRID mode
authentication-type simple [encryption-type] password
Parameters:
• encryption-type: 0 indicates unencrypted; 7 indicates encrypted.
• password: plain text.
Examples of the authentication-type Command
The bold section shows the encryption type (encrypted) and the password.
Dell(conf-if-gi-1/1-vrid-111)#authentication-type ?
Dell(conf-if-gi-1/1-vrid-111)#authentication-type simple 7 force10
The following example shows verifying the VRRP authentication conguration using the show conf command. The bold section shows
the encrypted password.
Dell(conf-if-gi-1/1-vrid-111)#show conf
!
vrrp-group 111
authentication-type simple 7 387a7f2df5969da4
priority 255
virtual-address 10.10.10.1
virtual-address 10.10.10.2
virtual-address 10.10.10.3
virtual-address 10.10.10.10
Disabling Preempt
The preempt command is enabled by default. The command forces the system to change the MASTER router if another router with a
higher priority comes online.
Prevent the BACKUP router with the higher priority from becoming the MASTER router by disabling preempt.
NOTE
: You must congure all virtual routers in the VRRP group the same: you must congure all with preempt enabled or
congure all with preempt disabled.
Because preempt is enabled by default, disable the preempt function with the following command.
• Prevent any BACKUP router with a higher priority from becoming the MASTER router.
INTERFACE-VRID mode
no preempt
Examples of Disabling Preempt
Re-enable preempt by entering the preempt command. When you enable preempt, it does not display in the show commands, because it
is a default setting.
The following example shows how to disable preempt using the no preempt command.
Dell(conf-if-gi-1/1)#vrrp-group 111
Dell(conf-if-gi-1/1-vrid-111)#no preempt
Dell(conf-if-gi-1/1-vrid-111)#
The following example shows how to verify preempt is disabled using the show conf command.
Dell(conf-if-gi-1/1-vrid-111)#show conf
!
vrrp-group 111
authentication-type simple 7 387a7f2df5969da4
980
Virtual Router Redundancy Protocol (VRRP)