On Wed, Jun 16, 2004 at 08:16:31AM +0800, Trent Lloyd wrote: > Ahh, i see, however you would have to set autoconf to off then *remove* > the link-local addresses, because they are setup before that variable is > changed? [or is there an option for this in the kernel? afaik its just > in proc (sysctl)] you can set net.ipv6.conf.defaul.autoconf=0 and then up the interface. This will prevent it from getting any announced prefixes, but it wont prevent it from getting linklocal prefix. So my idea is, that autoconf=0 will prevent it from getting linklocal and advertised adddresses and accept_ra=0 will prevent it from getting announced prefixes. > That said, the link-local addresses are *NOT* the issue here, and having > them will not cause said problems, the problem here is the user has 4 > real world IPv6 addresses configured by a router on his network + user > configuration (the 6to4 address). Well, the user does not have them now anymore and Mozilla uses the link-local. However I agree with you, that it might not help to remove (prevent autoconfgration) because mozilla still might suceed in AF_INET6 binding and try the connect w/o failback. > Check out http://www.sixlabs.org/talks/, in my IPv6 programming talk I > have code showing how to use getaddrinfo() and try each address until > one suceeds. There is btw an additional issue with sending AAAA requests on a host which is not fully configured for ipv6. In fact I think we should disable to compile ipv6 into the kernel, its so painfull to turn the AF off. Greetings Bernd -- (OO) -- Bernd_Eckenfels@Mörscher_Strasse_8.76185Karlsruhe.de -- ( .. ) ecki@{inka.de,linux.de,debian.org} http://www.eckes.org/ o--o 1024D/E383CD7E eckes@IRCNet v:+497211603874 f:+497211606754 (O____O) When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl! - : 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
