vrrp and multiple ip.

ugisduc · January 16, 2020, 10:43pm

Hi,

What to do, if I have only one ip from provider, but need redundancy?

I found the second solution:

add address=169.254.1.2/29 interface=ether1 (169.254.1.3/29 for second router)
add address=169.254.1.1/29 interface=vrrp1
add address=50.50.50.2/30 interface=wrrp1

169.254.1.1 will be used for vrrp advertisments, 50.50.50.2 will be switched together with it. Is it right solution?

Best Regards,
Ugis

cdiedrich · January 17, 2020, 5:23am

Yup, that works. But the vrrp address has to be a /32 no matter what the actual subnet size is.
-Chris

ugisduc · January 17, 2020, 1:10pm

OK. But is it for any vrrp or first? I mean, 169.254.1.1? How can I assign mask /30 to 50.50.50.2?

cdiedrich · January 17, 2020, 1:15pm

Just for the first - the one in the same subnet you’re using for vrrp.
The other addresses can be any mask and will follow the vrrp status.

-Chris

ugisduc · January 17, 2020, 1:52pm

OK! Thank’s for answer.

But anyway, it’s not clear for me, why other masks can’t be used. Because for many years I always used the same mask as for subnet and all was ok. Is there some situations, where it can make problems?

Ugis