1136 | Virtual Router Redundancy Protocol (VRRP)w w w . d e l l . c o m | s u p p o r t . d e l l . c o m Configure VRRP AuthenticationSimple authentication of VRRP packets ensures that only trusted routers participate in VRRP processes.When authentication is enabled, FTOS includes the password in its VRRP transmission, and the receivingrouter uses that password to verify the transmission.Configure simple authentication with the following command in VRRP configuration mode:Figure 58-9. Command Example: authentication-type simpleNote: Authentication is not available for IPv6 VRRP.Note: All virtual routers in the VRRP group must be configured the same: authentication must be enabledwith the same password or authentication is disabled.Task Command Syntax Command ModeConfigure a simple text password. authentication-type simple [encryption-type]passwordencryption-type: 0 indicates an unencryptedpassword in the configuration; 7 indicates anencrypted password in the configuration.password: plain textINTERFACE-VRIDNote: As shown in Figure 58-9, the VRRP authentication password that you configure is displayed inencrypted form in show running-config (EXEC Privilege) and show config (INTERFACE) commandoutput. To display the VRRP authentication password (as well as all other FTOS passwords) in clear textin show command output, you must enter the no service password-encryption (CONFIGURATION)command. To remove the currently configured VRRP authentication password, enter the noauthentication-type simple [encryption-type] password command.FTOS(conf-if-gi-1/1-vrid-111)#authentication-type simple 0 force10FTOS(conf-if-gi-1/1-vrid-111)#show config!vrrp-group 111authentication-type simple 7 387a7f2df5969da4priority 255virtual-address 10.10.10.1virtual-address 10.10.10.2virtual-address 10.10.10.3virtual-address 10.10.10.10FTOS(conf-if-gi-1/1-vrid-111)#no authentication-type simple 0 force10FTOS(conf-if-gi-1/1-vrid-111)#show config!vrrp-group 111priority 255virtual-address 10.10.10.1virtual-address 10.10.10.2virtual-address 10.10.10.3virtual-address 10.10.10.10
