I need some help with ipv6.

I am using 6to4 and its working on my LAN.

I have two servers on two WAN ips and both are 6to4.

I have tested these using various ip6 test sites. They all ping6, even got 6to4 reverse DNS working from these test sites and web pages.

But I can not connect from one server to another. My lan machines can all see the web page on my server they are connected to, but can't see the other standalone server.

I tried from a 3rd 6to4 machine outside and they can't ping or see webpages from my two servers.

All the test sites show they work, even accept them as ipv6 sites!. It seems its blocking or miss-routing only between 6to4 networks

Any ideas? Naturally the clients can surf ipv6 sites.

Also my servers wont reverse DNS each other. Forward it works, but reverse fails. Again some 6to4 interconnecting issues.

Any idea's please?

eth1 Link encap:Ethernet HWaddr xx
inet addr:10.0.0.1 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addrx/64 Scope:Link
inet6 addr: xxx::1/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:484784 errors:0 dropped:0 overruns:0 frame:0
TX packets:467504 errors:0 dropped:0 overruns:3 carrier:0
collisions:0 txqueuelen:1000
RX bytes:239177418 (228.0 MiB) TX bytes:168139480 (160.3 MiB)
Interrupt:16 Base address:0xc000

eth2 Link encap:Ethernet HWaddr xx
inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addrx/64 Scope:Link
inet6 addr: xxx:2::1/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:463038 errors:0 dropped:0 overruns:0 frame:0
TX packets:486267 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:167581352 (159.8 MiB) TX bytes:227714691 (217.1 MiB)
Interrupt:19 Base address:0xe000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:104985 errors:0 dropped:0 overruns:0 frame:0
TX packets:104985 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:13412783 (12.7 MiB) TX bytes:13412783 (12.7 MiB)

tun6to4 Link encap:IPv6-in-IPv4
inet6 addrxx::1/16 Scope:Global
UP RUNNING NOARP MTU:1480 Metric:1
RX packets:312 errors:0 dropped:0 overruns:0 frame:0
TX packets:380 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:149189 (145.6 KiB) TX bytes:42339 (41.3 KiB)