Hello Andy ProgAndy --> arch-general (2018-02-23 23:09:07 +0100): > Am 23.02.2018 um 01:45 schrieb Jukka Salmi: > > With dhcpcd-6.11.5-1 starting this netctl profile results in an IPv4 > > address being configured via DHCP and an IPv6 address being configured > > via SLAAC as expected. > > > > With dhcpcd-7.0.1-1 starting this netctl profile results in an IPv4 > > address being configured via DHCP, but no IPv6 address is configured. > > > > ... > > > > Is anybody seeing the same issue? Is really dhcpcd to blame? > > > > > > TIA & cheers, > > > > Jukka > > > Hello, > that was a deliberate design decision, it is assumed that you will > either want dhcpcd to handle ipv4 as well as ipv6 or you want to > disable ipv6. > > https://roy.marples.name/archives/dhcpcd-discuss/0001903.html > > > * ipv6: disable kernel RA if interface is active [...] > More information about the reasons for the change here: > https://roy.marples.name/archives/dhcpcd-discuss/0001907.html > https://roy.marples.name/archives/dhcpcd-discuss/0001880.html Thanks for the hints. So it seems that currently a netctl profile with IP=dhcp IP6=stateless is just not working as expected, at least not when using the default setting of DHCPClient=dhcpcd. > It seems that there were too many complaints, so in git the behaviour > has been changed again. (After the 7.0.1 release) > https://roy.marples.name/archives/dhcpcd-discuss/0001942.html > https://github.com/rsmarples/dhcpcd/commit/8f483d192082a953dd035f38ee4555735106f1fc > > /* > > * If dhcpcd is doing RS, disable RA support > > * in the kernel. Otherwise, leave it alone. > > * Logically it should be disabled regardless as dhcpcd can > > * do it better and the user saying no RS means no RS even the kernel, > > * but some crazy people want the kernel to do it still. > > */ > > Maybe in the future dhcpcd will have options for both ignoring ipv6 > (letting the kernel handle it) and disabling ipv6. I wouldn't complain about such options ;) Cheers, Jukka -- This email fills a much-needed gap in the archives.