Re: [Engine-devel] [Spice-devel] RFC: spice-server default listen behaviour change
On 06/15/12 11:02, David Jaša wrote:
Gerd Hoffmann píše v Pá 15. 06. 2012 v 10:36 +0200:
> Hi,
>
>> This is pretty important wrt dual-stack configurations because they can
>> be implemented with just slight changes to spice server (unlike the old
>> RFE requesting listening on multiple addresses):
>>
>> * when no addr= or ipvx options are set, listen on ::0
>
> spice-server sets "ai.ai_flags = AI_PASSIVE | AI_ADDRCONFIG", which
> should make getaddrinfo() pick something reasonable, specifically listen
> on ipv6 only if the machine actually has ipv6 connectivity.
>
I don't think that listening on IPv6 exclusively is good when the host
has both IPv4 and IPv6 connectivity.
Huh? Oh, I see you can read the sentence two ways:
(1) specifically listen on ipv6 only, if the machine actually has ipv6
connectivity
(2) specifically listen on ipv6, only if the machine actually has ipv6
connectivity
I mean (2), i.e. do not create a ipv6 socket if the machine has no ipv6
connectivity.
When creating a ipv6 socket IPV6_ONLY should be clear by default indeed,
so both ipv4 and ipv6 will work.
cheers,
Gerd