On Thu, 17 Jun 2004, Trent Lloyd wrote: > > IMHO, Linux should do both: > > 1) remove the IPv6 default routes pointing on each interface when the > > interface is created, > > They key is, there is no default route, unless its autoconfigured, in > whcih it should have one.... I'm not sure if we're talking about the same thing, but let me restate to be clear(er). Currently, Linux installs a least-preferred default route on each of it's interfaces. I.e., if you don't have a default route from e.g., route advertisements, your routing table might look like: $ /sbin/ip -6 r l fe80::/64 dev eth1 proto kernel metric 256 mtu 1500 advmss 1440 fe80::/64 dev eth0 proto kernel metric 256 mtu 1500 advmss 1440 ff00::/8 dev eth1 proto kernel metric 256 mtu 1500 advmss 1440 ff00::/8 dev eth0 proto kernel metric 256 mtu 1500 advmss 1440 default dev eth1 proto kernel metric 256 mtu 1500 advmss 1440 default dev eth0 proto kernel metric 256 mtu 1500 advmss 1440 unreachable default dev lo proto none metric -1 error -101 The two default routes, above, are created automatically when the interfaces are started. Those will cause problems unless you get the default route from RA's (which overrides or replaces them). Hence, the kernel implementation should never add those least-preferred default routes in the first place. (This was mandated in RFC2461 "on-link assumption", but has been removed in the revision now.) -- Pekka Savola "You each name yourselves king, yet the Netcore Oy kingdom bleeds." Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
