Am 18.02.2014 um 20:46 schrieb Vigdis <vigdis+o...@chown.me>: > I recently set up IPv6 on my computers, and now I have some questions : > > 1) Why is there a difference with the -I option whether it is ping or > ping6? (ping -I wants an ifaddr and ping6 -I an interface name)
AFAIK this is because of IPv6 scoped addresses With link-local addresses, the kernel does not know which interface to use, so you need to specify. > 2) From man resolv.conf: "By default IPv4 addresses are queried first, > and then IPv6 addresses." Why this choice ? According to > [1], this policy is since 4.6, so were IPv6 queried first before? Commit message says: "Add a resolv.conf option to specify the order in which getaddrinfo PF_UNSPEC queries are made. While there change the default from inet6 first then inet4 to inet4 first then inet6, this prevents the many people with IPv4 only connectivity from constantly trying to contact IPv6 addresses, and also unbreaks many ports who don't use getaddrinfo right. [...]" > 3) I saw that jung@ worked during b2k13 to make spamd IPv6 capable [2], > any chance that it will be IPv6 capable in 5.5? Nope. Not yet ready. Regards, Joerg
