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