On Tue, Mar 03, 2009 at 10:55:27PM +1100, Robert Barnett wrote: > > Just for fun, I'm setting up a FC10 machine with as an IPv6 router. > The tunnel device (tun0) is automatically created using a script (aiccu)
is this a 6to4 sit or are you using a tunnel broker ?
You can use ip -6 r g ipv6.google.com
or ping6
ping6 ipv6.google.com
PING ipv6.google.com(2001:4860:c003::68) 56 data bytes
64 bytes from 2001:4860:c003::68: icmp_seq=1 ttl=60 time=387 ms
i use 6to4 addressing because I have a static ipv4 adsl address
ip -6 r
::/96 via :: dev ppp06to4 metric 256 mtu 1440 advmss 1380 hoplimit
4294967295
unreachable 2002:3cf1:f856:8::1 dev lo proto kernel metric 256 error
-128 mtu 16436 advmss 16376 hoplimit 4294967295
2002:3cf1:f856:11::/64 dev eth0.0 proto kernel metric 256 mtu 1500
advmss 1440 hoplimit 4294967295
2002::/16 dev ppp06to4 proto kernel metric 256 mtu 1440 advmss 1380
hoplimit 4294967295
2000::/3 via ::192.88.99.1 dev ppp06to4 metric 10 mtu 1440 advmss 1380
hoplimit 4294967295
fe80::/64 dev eth0 proto kernel metric 256 mtu 1500 advmss 1440
hoplimit 4294967295
fe80::/64 dev eth1 proto kernel metric 256 mtu 1500 advmss 1440
hoplimit 4294967295
fe80::/64 dev eth0.0 proto kernel metric 256 mtu 1500 advmss 1440
hoplimit 4294967295
fe80::/64 dev eth0.1 proto kernel metric 256 mtu 1460 advmss 1400
hoplimit 4294967295
fe80::/64 dev ppp06to4 proto kernel metric 256 mtu 1440 advmss 1380
hoplimit 4294967295
unreachable fe80::/64 dev lo proto kernel metric 256 error -128 mtu
16436 advmss 16376 hoplimit 4294967295
fe80::/64 dev wlan0 proto kernel metric 256 mtu 1500 advmss 1440
hoplimit 4294967295
fe80::/64 dev tap0 proto kernel metric 256 mtu 1500 advmss 1440
hoplimit 4294967295
6to4 addresses are inthe 2002::/16 space
ifconfig ppp06to4
ppp06to4 Link encap:IPv6-in-IPv4
inet6 addr: 2002:3cf1:f856::1/16 Scope:Global
inet6 addr: ::60.241.248.86/128 Scope:Compat
UP RUNNING NOARP MTU:1440 Metric:1
RX packets:9712 errors:0 dropped:0 overruns:0 frame:0
TX packets:13236 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2045103 (1.9 MiB) TX bytes:1264034 (1.2 MiB)
i create it with
$IP tunnel add $TUNNAME mode sit ttl 32 remote any local $IPV4ADDR
if you are using a broker then it will setup the interface
> I want to allow other machines to use this box as a gateway, but I think
> I have the config wrong
>
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436
> inet6 ::1/128 scope host
> valid_lft forever preferred_lft forever
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 100
> inet6 2001:1938:83:52::3/64 scope global
> valid_lft forever preferred_lft forever
> inet6 fe80::20d:57ff:fd9b:4b24/64 scope link
> valid_lft forever preferred_lft forever
> 40: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1280 qlen 500
> inet6 2001:1938:83:52::2/64 scope global
> valid_lft forever preferred_lft forever
> inet6 fe80::1838:83:52:2/64 scope link
> valid_lft forever preferred_lft forever
>
> 2001:1938:83:52::/64 dev eth0 proto kernel metric 256 mtu 1500 advmss
> 1440 hoplimit 4294967295
> 2001:1938:83:52::/64 dev tun0 proto kernel metric 256 mtu 1280 advmss
> 1220 hoplimit 4294967295
> fe80::/64 dev eth0 proto kernel metric 256 mtu 1500 advmss 1440
> hoplimit 4294967295
> fe80::/64 dev tun0 proto kernel metric 256 mtu 1280 advmss 1220
> hoplimit 4294967295
> default via 2001:1938:83:52::1 dev tun0 metric 1024 mtu 1280 advmss
> 1220 hoplimit 4294967295
>
> I have radvd running and everything works well on the LAN using the
> stateless addresses.
>
> --
>
> I've tried many combinations of a few things to solve the problem
>
> turning off /etc/init.d/iptables
>
> turning off /etc/init.d/ip6tables
>
> sysctl -w net.ipv6.conf.default.forwarding=1
>
> sysctl -w net.ipv6.conf.all.forwarding=1
>
> Restricting prefix of tun0
> # /sbin/ip -6 addr del 2001:1938:83:52::2/64 dev tun0
> # /sbin/ip -6 addr add 2001:1938:83:52::2/126 dev tun0
>
> Changing the global ip on eth0 to the same as tun0
>
> Any thoughts?
>
> Thanks
>
> Robbie Barnett
>
> rob...@barnett.id.au
> 0431864709
> Skype Name: retsil42
>
> --
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