bugFreeciv - Bugs: bug #21004, Game announcement multicast over...

 
 
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bug #21004: Game announcement multicast over IPv6 not working to another node.

Submitted by:  Marko Lindqvist <cazfi>
Submitted on:  Sun 04 Aug 2013 09:19:01 PM UTC  
 
Category: NoneSeverity: 3 - Normal
Priority: 5 - NormalStatus: None
Assigned to: NoneOpen/Closed: Open
Release: Operating System: None
Planned Release: 

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Sun 12 Oct 2014 01:16:46 PM UTC, comment #6:

>> LAN announcement has never worked for me in Linux?
> Have you open bug about the announcement issue?

Finally raised as bug #22792.

Jacob Nevins <jtn>
Project Administrator
Mon 26 Aug 2013 05:38:23 PM UTC, comment #5:

I think we are not playing nicely with the IPv4 announcement either. Last time I dig IANA documents about this, I found no mention that address we use would be somehow reserved for use like ours. Are we just using randomly selected address and hoping that in no network both freeciv and official owner of the address use it?

Marko Lindqvist <cazfi>
Project Administrator
Mon 26 Aug 2013 05:25:20 PM UTC, comment #4:

> mainly because I was never sure how it was supposed to look
> from a user perspective


1. Start server
2. Start client
3. "Connect to Network Game"
4. Wait a couple of seconds for server to appear in "Local Area Network" -tab (open by default)

Marko Lindqvist <cazfi>
Project Administrator
Mon 26 Aug 2013 05:19:33 PM UTC, comment #3:

> Have you open bug about the announcement issue?

I don't think I ever characterised it well enough to be comfortable raising a bug (mainly because I was never sure how it was supposed to look from a user perspective).

Jacob Nevins <jtn>
Project Administrator
Mon 26 Aug 2013 05:12:50 PM UTC, comment #2:

> I don't have IPv6 configured on my network, but I expect my
> Freeciv is built with IPv6 support.


Even when freeciv has IPV6 support (that's the norm nowadays - check IPV6_SUPPORT from fc_config.h), annoucements use IPv4 by default, just because we cannot assume working IPv6 network, almost the contrary.

Have you open bug about the announcement issue?

Marko Lindqvist <cazfi>
Project Administrator
Mon 26 Aug 2013 04:47:36 PM UTC, comment #1:

Hm, I wonder if this could be why LAN announcement has never worked for me in Linux?

I don't have IPv6 configured on my network, but I expect my Freeciv is built with IPv6 support.

Jacob Nevins <jtn>
Project Administrator
Sun 04 Aug 2013 09:19:01 PM UTC, original submission:

Comment in get_multicast_group():

> #ifdef IPV6_SUPPORT
> /* TODO: Get useful group (this is node local) */


So the game announcement with IPv6 (commandline option "--Announce ipv6") has scope of local node (computer) only. It's not very useful that way.

Marko Lindqvist <cazfi>
Project Administrator

 

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