Hi, I have been having some difficulty accessing the www.wlug.org.nz site via IPv6 from my network, all machines apart from the gateway do not use a 6to4 addressing (e.g. 2001:db0:10f7:1::1), as soon as a trace leaves the 2001:: range the trace fails (no matter if it leaves IPv6 via the 6to4 interface on the gateway or elsewhere on the IPv6 internet), however, the gateway that has a 6to4 address on it can ping, trace and view the website without difficulty. To assist with further troubleshooting further from my end could someone please provide me with some other sites that use 6to4 addresses so I can troubleshoot further, I was going through a list of IPv6 websites that I know of but only 1 site I tested out of about 70 on the list used a 2002:: address and it was offline in both the ipv4 and 6 internet. Sorry to be a hassle but would like to get to the cause of the issue and be able to rectify it as it is pretty much the only site I regularly visit via IPv6 that I have problems with. Regards, Steve
On Sun, 2005-04-24 at 06:21 +1000, Steven Lisson wrote:
Hi,
I have been having some difficulty accessing the www.wlug.org.nz site via IPv6 from my network, all machines apart from the gateway do not use a 6to4 addressing (e.g. 2001:db0:10f7:1::1), as soon as a trace leaves the 2001:: range the trace fails (no matter if it leaves IPv6 via the 6to4 interface on the gateway or elsewhere on the IPv6 internet), however, the gateway that has a 6to4 address on it can ping, trace and view the website without difficulty.
The wiki has a quite extensive page with instructions on how to setup 6to4 under linux. Of course if you're having problems accessing the wiki this doesn't help. Lucikly we have www2.wlug.org.nz for this reason (it does not have any AAAA records). So you should be able to get to http://www2.wlug.org.nz/6to4 for some help with getting 6to4 setup.
To assist with further troubleshooting further from my end could someone please provide me with some other sites that use 6to4 addresses so I can troubleshoot further, I was going through a list of IPv6 websites that I know of but only 1 site I tested out of about 70 on the list used a 2002:: address and it was offline in both the ipv4 and 6 internet.
I can't think of any others off the top of my head, but if you're still having problems after following the above page feel free to post again and I'll try and hunt some down. Have you tried googling for "6to4 test site" or similar? Regards -- Matt Brown matt(a)mattb.net.nz Mob +64 275 611 544 www.mattb.net.nz
On Sun, Apr 24, 2005 at 11:15:46AM +1200, Matt Brown wrote:
On Sun, 2005-04-24 at 06:21 +1000, Steven Lisson wrote:
To assist with further troubleshooting further from my end could someone please provide me with some other sites that use 6to4 addresses so I can troubleshoot further, I was going through a list of IPv6 websites that I know of but only 1 site I tested out of about 70 on the list used a 2002:: address and it was offline in both the ipv4 and 6 internet.
I can't think of any others off the top of my head, but if you're still having problems after following the above page feel free to post again and I'll try and hunt some down. Have you tried googling for "6to4 test site" or similar?
Hrm, I'm not really a networking expert, but I think it's a problem with hoiho's upstream anycast 6to4 -> real ipv6 server. Running tcpdump on hoiho, I can see ping requests from 2001 addresses and hoiho sends a reply, but if I send ping requests from hoiho then they don't seem to get there. It all seems to work for 6to4 <-> 6to4 addresses though. I don't think we can do much about upstream tunnel problems from here. We'll just have to wait for NZ isps to support ipv6 natively - should be any day now.... :p John
participants (3)
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John R. McPherson -
Matt Brown -
Steven Lisson