01-18-2009 03:00 PM - edited 03-06-2019 03:30 AM
hi every body!
My Cisco press book shows the following configuration:
router(config)# int e0
router(config-if) ip address 192.192.192.1 255.255.255.0
router(config-if) no shutdown
router(config-if) standby 1 priority 200
router(config-if) standby 1preempt
router(config-if) standby 1 ip 192.12.192.2
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Plain-text hsrp authentication:
My book says cisco device use 'ciso' as the deafault key string.
My question is in the above configuration, we did not configure any authetication , should i assume the hsrp messages will be sent with plain text authetication string"cisco"?
Or the book means we use the command" standyby 1 authetication " and did not specify the string , then the string" cisco" is assumed?
thanks a lot!
Solved! Go to Solution.
01-18-2009 05:46 PM
The command to configure authenticaiton is standby [group-number] authentication string.
Authentication prevents a lower priority device from learning the standby IP address and timer values from a higher priority device. The authentication key that is used for this is sent as an unencrypted clear-text 8 character string. The default string is Cisco.
If you haven't configured authentication then it wont be used.
Configuring HSRP: http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.1_19_ea1/configuration/guide/swhsrp.html#wp1044417
01-18-2009 05:46 PM
The command to configure authenticaiton is standby [group-number] authentication string.
Authentication prevents a lower priority device from learning the standby IP address and timer values from a higher priority device. The authentication key that is used for this is sent as an unencrypted clear-text 8 character string. The default string is Cisco.
If you haven't configured authentication then it wont be used.
Configuring HSRP: http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.1_19_ea1/configuration/guide/swhsrp.html#wp1044417
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