OpenVPN IPv6 support

mgiesl2s

Hello,
I have a local IPv6 Subnet behind my VPN-Gateway and I want to configure my OpenVPN Server so that all VPN Clients can reach the local IPv6 subnet. My OpenVPN Server is working in tun-mode. Is there another opportunity to support IPv6 without using Bridging-Mode?
I have read that IPv6 support will be added in the next Version 2.3. Can somebody tell me when it will be available?
I also found this site "http://www.greenie.net/ipv6/openvpn.html" to patch the openVPN to become IPv6 support. Can somebody tell me some experience of it? Or some pros and cons of this patch?

Brody

I start up in normal ipv4 mode, until the IPv6 address kicks in, at which time Firefox, supposedly ipv6 enabled, then won't resolve to anything. I'm quite unclear about how to access the resources on my company's network though, assuming I'm actually connected to that at the moment.

Am not sure because those addresses apparently allow anybody to connect to me, perhaps just by putting in the address. Ikt, did you connect to me yesterday? I came across what I think was your blog--two vids on it, correct?--in the course of trying to sort this out yesterday, and can't remember if I got the ip out of the log or was searching for it.

Wireshark lists a number of ipv6 addresses that apparently tried to connect to the number above and Nmap traces the links okay, but it's all quite a mystery how to make ipv6 work, what the ultimate benfit is, how to properly do security--I've got a shadow localhost running for example, so two ips named 127.0.0.1 resolve to localhost and I can't seem to block the ports on the one, which appears to be udp6.

At the moment I'm going to go figure out how to turn it off on Ubuntu so I can at least flick it on and off at will.

Ipv6 is clearly a very powerful element, but it's going to take some brain power to figure out how and why to use it.

Mimiko

As there (at least on Windows) is a 6to4 protocol, to allow to pass IPv6 thru connetions wuth IPv4, then its the matter of configuring routing table to indicate where to route the IPv6 packets.

mgiesl2s

I use the 6to4 protocol on vpn client and Openvpn-Gateway-Server, but it doesn't work. Can you tell me how i have to configuring the routing table?

Szenario:
local Subnet on Gateway Server:
eth0
10.30.0.xxx/24 and fc00::xxx/7
eth1
global ip Adress with internet connectivity
tun0
10.80.0.1/24

Client Adress:
eth0
local ipv4 Address and fc00:xxx/7 Adress
tun0
10.80.0.xxx/24

I can reach the local subnet on the Gateway Server (ipv4) but not the ipv6 Address of the OpenVPN-Gateway-Server.
Can somebody help me?

Mimiko

See the route table and addin routes to the routing table in linux.