also success with Tomato 7503.6 Toastman (Linksys E2000)
IPv6 service type=6rd Relay
6rd Routed Prefix= 2602:240::
6rd Prefix Length=32
static DNS=blank
6rd Tunnel Border Relay=184.23.144.1
6rd IPv4 mask length=0
Tunnel MTU=0
Tunnel TL=255
results= 9/10 http://test-ipv6.com/
bad test =Test if your ISP's DNS server uses IPv6 = bad (0.145s)
IPv6 service type=6rd Relay
6rd Routed Prefix= 2602:240::
6rd Prefix Length=32
static DNS=blank
6rd Tunnel Border Relay=184.23.144.1
6rd IPv4 mask length=0
Tunnel MTU=0
Tunnel TL=255
results= 9/10 http://test-ipv6.com/
bad test =Test if your ISP's DNS server uses IPv6 = bad (0.145s)