Hello,
I'm using Win7 that get IPv6 address from RA (SLAAC) from a Cisco 1841 router doing a 6in4 (protocol 41) to HE.NET.
I'm able to ping everything, IPv6 DNS resolution works fine for everything:
- i can ping www.he.net and ipv6.google.com and DNS resolves by getting AAAA records (verified with wireshark)
But most of the www sites doesn't work: he.net doesn't work but ipv6.google.com works. test-ipv6.com reports 10/10. in fact 90% of sites doesn't works.
I very surprised to not being able to get to he.net in ipv6... Few months ago everything worked fine !
Tried different browser: opera, chrome, explorer, firefox
Any ideas ?
Regards,
Hi,
Finally got it working... Kinda weird solution:
1- i realized that my IPv6 MTU was at 1500 using this command in Windows 7:
netsh interface ipv6 show subinterface
2- changed it to 1280 with this command:
netsh interface ipv6 set subinterface "Local Area Network 1" mtu=1280
3- now this is working...! (need to add "store=persistent" at the end to make it permanent)
MY QUESTIONS:
- Why IPv6 MTU discovery (Packet-to-big) did not worked ??? This is allowed in my firewall...
- Is there someone else in this forum that is using HE.NET tunnel broker that needed to do it ?
Any comments ?
Regards,
Hello Again ;D
I found a setting for MTU in the advanced tunnel configuration - was at 1480 and changed it to 1432. This works perfectly now without having to change the MTU on my desktop.
Regards,