Hi all. I was recently doing an HSRP config. And remember a while ago, there was an issue with HSRP when doing seconday commands for a VIP that was not on the same network class as the primary IP of the interface. Does anyone know if this limitation is still there. Im using an MSFC2 12.1(20)E2 code. Posted is the config. Thanks.
Now that doesn't make sense at all. How can both a primary and secondary IP address on the same interface be in the same subnet. I don't believe IOS will even let you do that. I'm betting you didn't really look at his config and you're thinking that his primary IP is on one system and secondary is on another. Please look again, he has both a primary IP address and secondary on the same interface:
>ip address 172.16.1.2 255.255.0.0 secondary
>ip address 10.1.51.2 255.255.255.0
>no ip redirects
>arp timeout 300
>standby 1 ip 10.1.51.1
>standby 1 ip 172.16.1.1 secondary
And in this case why wouldn't having a different HSRP group help? If he doesn't then he will have 2 IP addresses on the same physical network wanting to respond to the same MAC address. If 2 standby groups have the same group number, they have the same MAC address.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.