bugFreeciv - Bugs: bug #19840, Multicast fails without active...

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bug #19840: Multicast fails without active connection

Submitted by:  Zakri Kneebone <i1abnrk>
Submitted on:  Sat Jun 23 14:56:13 2012  
Category: bootstrapSeverity: 3 - Normal
Priority: 5 - NormalStatus: None
Assigned to: NoneOpen/Closed: Open
Release: 2.4.99Operating System: GNU/Linux
Planned Release: Contains string changes: None

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Sun Oct 12 13:39:33 2014, comment #5:

(It also happens on my netbook when I have no physical connectivity at all -- network cable unplugged and no wireless. This is more like the OP's setup, and perhaps more forgivable, although it might still be nice if server/client both on localhost could find each other. For more details of my setup see bug #22792.)

Jacob Nevins <jtn>
Project Administrator
Sun Oct 12 13:37:00 2014, comment #4:

Confirm this can still happen with S2_4 r26761.

In my case I took away internet connectivity (via ppp0) but still had an active physical connection to a local network via eth0, and it had another machine on it. This is a scenario that ought to work correctly.

Jacob Nevins <jtn>
Project Administrator
Tue Mar 11 21:39:10 2014, comment #3:

See also bug #18440.

Jacob Nevins <jtn>
Project Administrator
Sat Jun 23 17:17:40 2012, comment #2:

Correct, clicking connect with localhost:5556 works. I was confused because of the output and I'm used to selecting localhost from the lan selection pane.

Zakri Kneebone <i1abnrk>
Sat Jun 23 16:45:04 2012, comment #1:

> 1: IP_ADD_MEMBERSHIP ( failed: No such device

> But the UDP error prevents local/virtual game play without an
> active connection.

That broadcast is used only to announce games in local network, it shouldn't affect actual play once you know server name ('localhost') and port ('5556' by default) to connect to.

Marko Lindqvist <cazfi>
Project Administrator
Sat Jun 23 14:56:13 2012, original submission:

Trying to set up a network game without an active physical connection I was stopped by a UDP/Multicast failure. Server said:

1: IP_ADD_MEMBERSHIP ( failed: No such device

but rulesets still loaded, however connecting with same client (gtk3) I receive:

1: lanserver scan sendto failed: Network is unreachable
1: Error connecting to metaserver

The second one is normal and I can still play the game without a metaserver. But the UDP error prevents local/virtual game play without an active connection.
I'm not sure if this is the correct category for submission.

Zakri Kneebone <i1abnrk>


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   patch dependencies.


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  • -unavailable- added by jtn (Posted a comment)
  • -unavailable- added by cazfi (Posted a comment)
  • -unavailable- added by i1abnrk (Submitted the item)

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