ames: unable to find routes when multiple ships are hosted on the same IP.

[liam-fitzgerald]

Describe the bug It would appear that some ships have difficulties finding routes when multiple ships are being run on the same machine. To Reproduce

• ~litmus-ritten has a reproduction where some users cannot join his group. Running KH, He is behind a NAT, but the counterparty to the issue is not. I am unable to establish a route to his moon, which is the other ship being run on the same machine. Issues joining appeared to start after the internet connection dropped out briefly
• @timlucmiptev has the same issue running C king, however neither him nor his counterparty is behind a NAT. I have direct routes to all ships in this instance

Expected behaviour Running multiple ships from the same IP should be supported

Notify maintainers @belisarius222

update

• moving ~litmus-ritten fixed the lack of routes
• moving ~timluc did not fix the lack of routes, however the counterparty might be also hosting multiple ships on the same machine
• attempted to repro on own ship with a moon, unable.

[litmus-ritten]

Based on advice from liam-fitzgerald I moved the pier for ~litmus-ritten onto a different machine behind the same NAT and booted it. Got a huge backlog, normal connectivity appears to be restored.

Additional commentary:

• Problem appeared after a network outage.
• Some ships could still communicate with ~litmus-ritten in this state.
• Fresh moons and comets could not communicate with ~litmus-ritten but could talk to other groups. These were hosted either on the same machine or different machines behind the same NAT.

Obviously huge thanks to liam-fitzgerald for helping me resolve this without a continuity breach.

[ashelkovnykov]

Any news? A friend and I are having connectivity issues with a couple of groups that are hosted by a planet/moon living on the same machine.

[bonbud-macryg]

I had this issue with a group I'm hosting on a moon, running on the same machine as my planet. Affected users couldn't join my group; I wasn't able to |hi them from the moon, nor could they |hi the moon.

I moved the moon to another machine and could |hi one affected user - though it can take up to ten seconds or more - and after moving the moon back they could |hi the moon back, as well as send and receive DMs. All the pending join requests to the group went through at once when I booted the moon on the new machine, and affected users can now post to the group as normal.