On 7 June 2012 21:02, Paul Tansom <p...@aptanet.com> wrote: > ** Simon Greenwood <sfgreenw...@gmail.com> [2012-06-07 19:41]: > > On 7 June 2012 18:55, Paul Tansom <p...@aptanet.com> wrote: > > > A couple of very quick questions on IPv6 that people may be able to > cast > > > light > > > on. > > > > > > 1. Does anyone know why IPv6 doesn't come up on boot with Ubuntu > 10.04? I > > > can > > > enable it once it is booted with a quick ifdown and ifup (although I > have > > > to > > > force the ifdown). For some reason it doesn't come up when the server > is > > > rebooted. The same config in the interfaces file on my 12.04 box works > > > fine. > > > > > > 2. With a Ubuntu 8.04 server (yes I know it is old!) with IPv6 enabled > and > > > Apache apparently supporting IPv6 am I right in assuming that there is > > > other > > > infrastructure that limits it working? I note that host, for example, > does > > > not > > > support IPv6. I could of course be missing something as it can be > tricky > > > working out whether the issue is at client or server, especially when > one > > > test > > > I was using quoted IPv6 working fine and the other insisted it was IPv4 > > > only! > > > In the end the postive test was simply telling me the client was > working > > > because it was pulling the info from a different server - doh. > > > > > > Of course both of these servers are penciled in for an upgrade to 12.04 > > > ASAP, > > > but the AP bit is proving the limiting factor in terms of available > time to > > > sort it out :( > > > > > The general question is how are you allocating IPv6 addresses on these > > machines? Have you had a network allocated by the provider? My guess > would > > be that if you haven't, on 10.04 it doesn't come up if an address isn't > > available or if there isn't a link-local network available, and on 8.04 > an > > allocated address needs to find a link-local network or an enabled > router. > ** end quote [Simon Greenwood] > > I have a static address allocated in a range allocated by my ISP. > Everything is > native IPv6 through the firewall, when the interface comes up. I guess it > could > be failing to identify that it is available because it is behind the > firewall, > I'm not familiar with how this checking would work. > > As for the 8.04 machine, this was pre-configured on my VPS for the > interfaces > side of things, so is coming up and working quite happily for SSH, ping, > etc., > just not on the web server, even though the addresses resolve correctly. > I'm > half assuming that Apache isn't bringing things up properly on the IPv6 > interface because it is having trouble resolving things somewhere, > although the > apachectrl configtest isn't showing up any errors. I'll have to dig into > the > logs a bit. > > Most of this is curiosity and impatience. I'm planning to upgrade both > machines > next month when things calm down a bit for me - hopefully! The upgrades > will be > via complete re-installs as I have other changes to make that make that > desirable over an upgrade in place. > > Hmm, interesting method. Do you have the IPv6 address as a Listen directive in apache in either machine? Can you see see that it's listening on port 80 on :::: or the allocated address using netstat -nlp ?
s/ -- Twitter: @sfgreenwood "TBA are particularly glib"
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