[Solved] HE-Tunnel ceased working

[ramjed]

Hi there,

My tunnel worked over months flawlessly but now no traffic gets to the server tunnel endpoint dns queries work though

Code:

PING www.google.com(2a00:1450:4008:c01::68) 56 data bytes
--- www.google.com ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2016ms

I tried to ping the endpoint server but I don't get any results either.

I'm using a linksys wrt54gs with dd-wrt, I reset the device just to check if it's not router related, I used the config from the dd-wrt config thread http://www.dd-wrt.com/phpBB2/viewtopic.php?p=669563, still nothing works

startup script

Code:

ip tunnel add he-ipv6 mode sit remote 216.66.84.46 ttl 64
ip link set he-ipv6 up
ip addr add 2001:470:1f14:1b1b::2/64 dev he-ipv6
ip route add ::/0 dev he-ipv6
ip addr add 2001:470:1f15:1b1b::/64 dev br0
sleep 5
radvd -C /tmp/radvd.conf

radvd config

Code:

interface br0 {
MinRtrAdvInterval 3;
MaxRtrAdvInterval 10;
AdvLinkMTU 1480;
AdvSendAdvert on;
prefix 2001:470:1f15:1b1b::/64 {
AdvOnLink on;
AdvAutonomous on;
AdvValidLifetime 86400;
AdvPreferredLifetime 86400;
};
RDNSS 2001:470:20::2 {};
};

routing table

Code:

2001:470:1f14:1b1b::/64 via :: dev he-ipv6  metric 256  mtu 1472 advmss 1412
2001:470:1f15:1b1b::/64 dev br0  metric 256  mtu 1500 advmss 1440
fe80::/64 dev eth0  metric 256  mtu 1500 advmss 1440
fe80::/64 dev vlan0  metric 256  mtu 1500 advmss 1440
fe80::/64 dev eth1  metric 256  mtu 1500 advmss 1440
fe80::/64 dev br0  metric 256  mtu 1500 advmss 1440
fe80::/64 dev vlan1  metric 256  mtu 1500 advmss 1440
fe80::/64 via :: dev he-ipv6  metric 256  mtu 1472 advmss 1412
ff00::/8 dev eth0  metric 256  mtu 1500 advmss 1440
ff00::/8 dev vlan0  metric 256  mtu 1500 advmss 1440
ff00::/8 dev eth1  metric 256  mtu 1500 advmss 1440
ff00::/8 dev br0  metric 256  mtu 1500 advmss 1440
ff00::/8 dev vlan1  metric 256  mtu 1500 advmss 1440
ff00::/8 dev he-ipv6  metric 256  mtu 1472 advmss 1412
default dev he-ipv6  metric 1024  mtu 1472 advmss 1412

If someone could help me bringing back ipv6 to my router...

EDIT:
hi there,
The Problem is solved now, tunnel wasn't configured right on the HE side, but they corrected it really fast
thanks broquea for pointing to the problem.

greetings
RJ

[broquea]

Assuming that is actually your tunnel's /64, I don't think your tunnel interface on HE's side is configured anymore. Try making sure your IPv4 endpoint is up-to-date, and that you see the tunnel in the broker's webUI. Also try emailing ipv6@he.net and see if they can push out your tunnel config on their side.

Code:

--- 2001:470:1f14:1b1b::1 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3024ms

I don't see any rDNS on that IP or the ::2, so if you are obfuscating your tunnel IP, don't. Makes it hard to troubleshoot. If it is your allocation, bug them to push out rDNS as well