Thanks for the link to the slides. That sounds like exactly the issue I see (slide 29+30).
Looking forward to the 10.6.5 software update! Sincerely, Mark Linton mhl...@psu.edu personal.psu.edu/mhl100 814-865-4698 ♻ Please don't print this e-mail unless you really need to. On Oct 7, 2010, at 7:56 PM, Jeffrey Sessler wrote: > Ryan, > > I don't have access to the Apple bug number. If you a little info on > the issue, see here: > > Post mentions the "fix" in 10.6.5. > http://thread.gmane.org/gmane.org.operators.ipv6/3902 > http://www.fud.no/ipv6/ > > Monash University IPv6 deployment (great read) > See slide 29+ which covers windows ICS and Mac issues with RFC 3484 > http://www.apan.net/meetings/Sydney2010/Session/Slides/IPv6/10%20John_Mann_20100210.pdf > > > best, > Jeff > > > >>>> "Holland, Ryan C." <holland....@osu.edu> 10/7/2010 1:10 PM >>> > Jeff, > > Do you have any more information on this bug? Is it > documented/published? My experience is that Apple will silently 'fix' > wireless issues while rarely explaining them to IT professionals. > > =========== > Ryan Holland > (sent while mobile) > > On Oct 7, 2010, at 1:20 PM, "Jeffrey Sessler" <j...@scrippscollege.edu> > wrote: > >> Mark, >> >> There is a bug in 10.6 where it will under certain circumstances > prefer >> 6-to-4 IPv6 over IPv4. Apple has fixed the problem in the 10.6.5 > betas. >> >> Jeff >> >>>>> Mark Linton <mhl...@psu.edu> 10/7/2010 9:38 AM >>> >> On Oct 7, 2010, at 11:12 AM, Deke Kassabian wrote: >> >>> On 10/7/10 11:00 AM, Reynolds, Walter wrote: >>>> We have found that many of these are fixed by disabling IPv6 on > the >> Airport interface for the client. >>> >>> I'd be very glad to hear a cohesive theory (from the list, from >> Apple, whoever) on why that might be. >>> >>> ^Deke >> >> Disclaimer: I use a MacBook, exclusively on our campus wireless. I > used >> to have wireless issues. I disabled IPv6 on the wireless interface > and >> have had *no* issues since. >> >> My own theory is that a Vista or Windows 7 user on the wireless > network >> has Internet Connection Sharing turned on. By default, these > machines >> provide IPv6 router advertisements for their built in 6-to-4 tunnel. > The >> Mac prefers IPv6 when available, sees these RAs and accepts that > user's >> machine as its gateway. The users machine passes my traffic on to > its >> gateway as tunneled traffic. Since I'm using IPv6, and it has > converted >> my traffic through its 6-to-4 gateway, my traffic needs another > gateway >> to get back to IPv6. I have seen times when the gateway it found was > in >> New Zealand (I'm in Pennsylvania). Depending on where it dumps me > out, I >> probably don't have an "optimal" path to my destination. >> >> In theory, the fix is to get people to turn of MSICS. In practice, > its >> easier to get people to turn off IPv6. >> >> By the way, the MSICS issue should also exist for IPv4, since it >> includes DHCP offers. However, we have the ability to block this in > our >> LAN. We do not currently have the ability to block RAs. >> >> Sincerely, >> >> Mark Linton >> mhl...@psu.edu >> personal.psu.edu/mhl100 >> 814-865-4698 >> >> ♻ Please don't print this e-mail unless you really need to. >> >> ********** >> Participation and subscription information for this EDUCAUSE >> Constituent Group discussion list can be found at >> http://www.educause.edu/groups/. >> >> ********** >> Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. >> >> >> -- >> BEGIN-ANTISPAM-VOTING-LINKS >> ------------------------------------------------------ >> >> Teach CanIt if this mail (ID 1096979879) is spam: >> Spam: > https://antispam.osu.edu/b.php?i=1096979879&m=eea2a39cd687&c=s >> Not spam: > https://antispam.osu.edu/b.php?i=1096979879&m=eea2a39cd687&c=n >> Forget vote: > https://antispam.osu.edu/b.php?i=1096979879&m=eea2a39cd687&c=f >> ------------------------------------------------------ >> END-ANTISPAM-VOTING-LINKS >> > > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
