Can i float a public IPv4/v6 address in a fail-over cluster setup?

Linode Staff

We're working on a fail-over cluster solution with Linodes. The question is: can I float additional public IP addresses between my two Linodes WITHOUT a NodeBalancer?

1 Reply

You can use routing software (such as keepalived) to move a IPv4 address marked as failover in the remote access tab to achieve IPv4 failover, but IPv6 will be more complicated.

If you request a /116 pool from support, any of your Linodes will be able to access this pool. From there, you will need to send a gratuitous neighbor discovery packet to get the traffic routed to the desired Linode. You may want to try playing around with this using Scapy.


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