With firmware 22.214.171.124 I have had our IPv6 tunnel working fine for a couple of years but it does not seem to work after upgrading to firmware 126.96.36.199
I have followed the instructions in 43132-Connecting_RV220W_to_an_IPv6_Tunnel_broker.pdf to no avail.
Has anybody been able to run an IPv6 6in4 tunnel with a firmware later than 188.8.131.52 and if yes, how ?
This is also a question to Cisco
Apparently there is no other way than falling back to 184.108.40.206 again.
It appears, that the real problem is frequent loss of the tunnel connection.
There is no other way than rebooting the router to reestablish the tunnel.
If this could be done by monitoring software as is possible with some other (low-end) routers, it might be feasible, but no this is not possible with this router.
It might explain why I didn't succeed to setup my HE IPv6 tunnel on 220.127.116.11.
But even after downgraded to 18.104.22.168 and factory reset the device, I'm still unable to have a working IPv6 tunnel.
If have followed this how-to and take in account the Joergen remarks on prefix setup.
Devices acquired correct IPv6, but can't route (no ping6 working...)
How confirm that tunnel is up and/or routing working properly ?
I tried with 2001::/64 & 0::/0 for the route to the tunnel.
I have downgraded to 22.214.171.124 with a factory reset and reloaded the saved configuration
From a Fedora 20 Linux I just use ping6 to check
From Windows it is
ping -6 ipv6.google.com
On which version did you initially setup your tunnel ?
There is may be some steps not properly done on a native 126.96.36.199.
Or did you mind to provide me your saved configuration to compare ?
I don't recall on which firmware version I set up the tunnel, but anyway I have fallen back to 188.8.131.52 with a factory reset.
It may be important to follow the instructions in https://supportforums.cisco.com/sites/default/files/legacy/2/3/1/43132-Connecting_RV220W_to_an_IPv6_Tunnel_broker.pdf in the proper sequence.
Pay attention to the two entries (different types) in the Advertisement Prefixes section.
In the Tunneling section your tunnelbroker IP-adress will not show up in the IPv6 Tunnel Status Table. I have enabled and entered the Remote End Point IPv4 Address.