Am 16.06.2013 10:35, schrieb Jouke Witteveen: >> What this doesn't mention is that it also reads DNS servers from Router >> Advertisements, which the kernel cannot do by itself. dhcpcd does not >> perform dhcpv6 as far as I know. > > I'm not sure; it might do so nowadays. Does dhclient read DNS servers > from RAs in IPv4 mode?
I haven't check what dhclient does, but dhcpcd is definitely not a dhcpv6 client. >> IMO, we should remove the -4 flag from dhcpcd if IP6=stateless is set. > > The flag was added because in most situations leaving it out causes a > timeout in acquiring an IPv6 lease. > > My initial thoughts: > : If dhclient doesn't extract the addresses from RAs in IPv6 mode, we > shouldn't expect dhcpcd to do so > : If dhclient does, this might be a bug in dhcpcd dhclient != dhcpcd. dhclient has a complete dhcpv6 implementation, including prefix delegation, while dhcpcd is only a dhcp and ipv6 router solicitation client. My problem here is that the kernel cannot handle the extended information in RAs, like DNS. We need a client to do so and dhcpcd is the only one I know.
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