IPv6 routing in 3 minutes
From Telecomix Crypto Munitions Bureau
- Don't panic.
- This micro-tutorial is using static routing.
[edit] Put some ipv6 addresses on your interface(s)
ip -6 addr add c179:1234:5678::abcd:1/112 dev eth0 ip -6 addr add c179:1234:5678::1234:1/112 dev tap0
- c179:1234:5678::etc should be the network prefix that you own (or prefixes you squat)
- if you want to delete the addresses, type "ip -6 addr del X" where X is the address, possibly along with devices et.c.
- you can have multiple ipv6 addresses for one singe device.
[edit] add routing
Assuming you have a setup like the one below (eg. openVPN + your internal network)
openVPN
[a] [b] [c]----....------[d] a = random computer
| | | b = random computer
+----+----+ c = ip6 router & openVPN server
LAN d = openvpn client
We know..
- That you have assigned a, b and c ip6 addresses from some part of your network. we assume c179:1234:5678::abcd:0/112 is your LAN.
- That the openVPN link has addresses in something like c179:1234:5678::1234:0/112
- The example above, where you defined your ip6 address, is for your router.
Configuring routing. (a, b, c and d are different computers.)
- c# sysctl -w net.ipv6.conf.all.forwarding=1
- a# ip -6 route add c179:1234:5678::1234/112 via c179:1234:5678::abcd:1
- b# ip -6 route add c179:1234:5678::1234/112 via c179:1234:5678::abcd:1
- d# ip -6 route add c179::/16 via c179:1234:5678::1234:1
(obviously a, b and d should have some sane addresses defined for their interfaces, that are unique..)
and that's it.
read more here: Linux 197f IPv6 HOWTO
