Connecting to floating IP within the same datacenter

April 11, 2016 1.4k views
Networking

It looks like there's a bug in routing floating IPs. When connecting from another droplet within the same datacenter through floating IP, the connection sometimes works and sometimes doesn't. Using droplet's own IP address immediately resolves the problem at the cost of losing floating IP functionality.

That means floating IPs are presently useless for backend servers. It also means it is impossible to publish application APIs through floating IP address, because there is always some non-trivial probability that some API client happens to be in the same datacenter.

4 Answers

Hi Robert,

This is a known issue, and we are working on a resolution. Currently, the workaround is to ping the public IP of the Droplet with the Floating IP to populate the ARP table.

I'm also experiencing this issue. Very annoying that you have to ping to fix it. Spent 2 days trying to troubleshoot this and finally found this post. Please fix @BrookDO

I just got bit by this with crazy timeouts when trying to access my own droplet by its DNS name which is tied to the floating IP.

What is going on with this? Any plans to fix it?

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