I hope someone can shine light on this murky corner...
box1: (client)
sysconfig/../ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=bootp
IPV6INIT=yes
box2: (router)
sysconfig/../ifcfg-sit1
DEVICE=sit1
BOOTPROTO=none
ONBOOT=yes
IPV6INIT=yes
IPV6TUNNELIPV4=86.x.x.x
IPV6TUNNELIPV4LOCAL=84.x.x.x
IPV6ADDR=x:x:x::1/128
sysctl:
net.ipv6.conf.all.forwarding=1
(applied)
from the router, things are working:
# ping6 2001:888:0:2::2
PING 2001:888:0:2::2(2001:888:0:2::2) 56 data bytes
64 bytes from 2001:888:0:2::2: icmp_seq=1 ttl=57 time=65.1 ms
64 bytes from 2001:888:0:2::2: icmp_seq=3 ttl=57 time=65.1 ms
but, from the client, nothing is going anywhere...
ping6 2001:888:0:2::2
PING 2001:888:0:2::2(2001:888:0:2::2) 56 data bytes
--- 2001:888:0:2::2 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2000ms
client:
# ip -6 route
x:x:x::/64 dev eth0 proto kernel metric 256 expires 2591852sec mtu
1500 advmss 1440 metric10 4294967295
fe80::/64 dev eth0 metric 256 expires 21334031sec mtu 1500 advmss 1440
metric10 4294967295
ff00::/8 dev eth0 metric 256 expires 21334031sec mtu 1500 advmss 1440
metric10 4294967295
default via fe80::211:95ff:fee2:4a34 dev eth0 proto kernel metric 1024
expires 1792sec mtu 1500 advmss 1440 metric10 64
unreachable default dev lo proto none metric -1 error -101 metric10 255
# ip -6 neigh
# ip -6 neigh
fe80::211:95ff:fee2:4a34 dev eth0 lladdr 00:11:95:e2:4a:34 router nud
reachable
x:x:x::1 dev eth0 lladdr 00:11:95:e2:4a:34 router nud stale
eth0 Link encap:Ethernet HWaddr 00:0E:A6:88:93:60
inet addr:10.0.2.2 Bcast:10.0.2.255 Mask:255.255.255.0
inet6 addr: x:x:x:0:20e:a6ff:fe88:9360/64 Scope:Global
inet6 addr: fe80::20e:a6ff:fe88:9360/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:10631970 errors:0 dropped:0 overruns:0 frame:0
TX packets:12755694 errors:0 dropped:0 overruns:0 carrier:0
router:
# ip -6 route
unreachable ::/96 dev lo metric 1024 expires 21333439sec error -101
mtu 16436 advmss 16376 metric 10 4294967295
unreachable ::ffff:0.0.0.0/96 dev lo metric 1024 expires 21333439sec
error -101 mtu 16436 advmss 16376 metric 10 4294967295
unreachable 3ffe:ffff::/32 dev lo metric 1024 expires 21333439sec
error -101 mtu 16436 advmss 16376 metric 10 4294967295
2000::/3 dev sit1 metric 1024 expires 21333576sec mtu 1480 advmss 1420
metric 10 4294967295
fe80::/64 dev eth0 metric 256 expires 21333430sec mtu 1500 advmss 1440
metric 10 4294967295
fe80::/64 dev eth1 metric 256 expires 21333432sec mtu 1500 advmss 1440
metric 10 4294967295
fe80::/64 dev eth2 metric 256 expires 21333434sec mtu 1500 advmss 1440
metric 10 4294967295
fe80::/64 dev eth3 metric 256 expires 21333436sec mtu 1500 advmss 1440
metric 10 4294967295
fe80::/64 via :: dev sit1 metric 256 expires 21333439sec mtu 1480
advmss 1420 metric 10 4294967295
ff00::/8 dev eth0 metric 256 expires 21333430sec mtu 1500 advmss 1440
metric 10 4294967295
ff00::/8 dev eth1 metric 256 expires 21333432sec mtu 1500 advmss 1440
metric 10 4294967295
ff00::/8 dev eth2 metric 256 expires 21333434sec mtu 1500 advmss 1440
metric 10 4294967295
ff00::/8 dev eth3 metric 256 expires 21333436sec mtu 1500 advmss 1440
metric 10 4294967295
ff00::/8 dev sit1 metric 256 expires 21333439sec mtu 1480 advmss 1420
metric 10 4294967295
unreachable default dev lo proto none metric -1 error -101 metric 10 255
the 2000::/3 route was added by me manually, but it had no effect..
# ip -6 neigh
<no output>
ip6tables are all -P ACCEPT
the router is running radvd..
one of the things that confuse the hell out of me is having /64 in an
inet addr.. I thought those should be /128
I did have it working earlier, but then I set everything up manually
(adding neighbours and routes to every host on each box by hand)
IPv6 is supposed to be automagic, and having to do more configuration
than with IPv4 would be a bit of a let down..
--
Morten
:wq
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