Comment 14 for bug 1463480

10.0.3.1 is suspicious since that is what lxc will pick for a bridge, so the theory that bug #1416928 is at least related seems reasonable. It looks like the URL that is being provided by the upgrader Tools API call (which is just common.ToolsGetter). I would need to have a look at what data is coming back from juju/apiserver/common/tools.go -> findMatchingTools to confirm that this is where the URL is coming from, then track down how it got into toolstorage or simplestreams. Suggest that we get someone familiar with how that is populated in the conversation.