I tested this on my own system (where my router handles DHCPv6 and DHCPv4, IPv6 going through a tunnel from tunnelbroker.net (Hurricane Electric); I can see no issue.
As displayed in the attached screenshot, while I guess dhclient doesn't explicitly request nameservers (or at least, not as clearly as in the example capture from Fedora 14), the recursive nameserver option is always listed and properly appears in NetworkManager and /etc/resolv.conf.
This was on a brand new install from yesterday evening. At least, we can verify it's not an issue in NM, although there may still be something to be done for dhclient.
I tested this on my own system (where my router handles DHCPv6 and DHCPv4, IPv6 going through a tunnel from tunnelbroker.net (Hurricane Electric); I can see no issue.
As displayed in the attached screenshot, while I guess dhclient doesn't explicitly request nameservers (or at least, not as clearly as in the example capture from Fedora 14), the recursive nameserver option is always listed and properly appears in NetworkManager and /etc/resolv.conf.
This was on a brand new install from yesterday evening. At least, we can verify it's not an issue in NM, although there may still be something to be done for dhclient.