Le dimanche 06 avril 2014 à 18:00 +0200, Jan Lühr a écrit : > Hello folks, > > I'm trying to setup an anycast DNS-Service using Debian 7.4 and global > unicast addresses. > > At the moment I'm adding the anycast-IP to the second server > "ip -6 addr del 2001:67c:20a0:b103::2/64 dev br-ff" > the kernel runs into a duplicate address detection issue > > [81066.037496] br-ff: IPv6 duplicate address 2001:67c:20a0:b103::2 detected! > > and the address is not reachable on that server. > > What's wrong here? How can I build an anycast DNS service? Hello,
AFAIK, anycast is implemented using routing. (I never ran IPv6 anycast services, but I run IPv4 ones). So you have to add you anycast-ip to some dummy interface (for example ip a a 2001:67c:20a0:b103::2/128 dev dummy0) and redistribute the prefix via IGP (ospf, ibgp ...) You cannot have an address twice on the same link. -- Bastien Durel -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: https://lists.debian.org/[email protected]
