[CentOS] DHCPv6 - requesting "other" information
Mike Mohr
akihana at gmail.comThu Oct 9 04:15:51 UTC 2014
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Hello; I've run into a rather interesting problem on CentOS 7. According to sysconfig.txt (part of the initscripts documentation), I can set the following variables in ifcfg-ethX: DHCPV6C="yes" DHCPV6C_OPTIONS="-S" I've done so, but nothing is populated to /etc/resolv.conf and so DNS does not work. Interestingly, if I remove the latter option, an IPv6 address is added to the relevant interface. Packet dumps indicate that the required DNS information is being sent over the wire, so this appears to be a bug in the IPv6 DHCP software. Running the following command by hand yields similar results: $ dhclient -6 -S -v -v eth1 i.e. there are informational messages printed indicating that a DHCPv6 response was received successfully. Packet dumps again confirm that DNS information is being sent over the wire, but is not being used by the DHCP client application. Is this a known issue, and is there a way to fix the problem? All the best, Michael
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