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IPv6 support - Experimental phase


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#41 ghulands

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Posted 13 April 2018 - 07:29 PM

I noticed that both Charra and Castor give out the same IPV4 subnet

 

10.110.0.x

 

Is it possible for you to have them give out different ones? I'm pretty sure I had see 10.112.0.x given out.

 

IPV6 is fine.



#42 Flx

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Posted 13 April 2018 - 08:39 PM

I noticed that both Charra and Castor give out the same IPV4 subnet

 

10.110.0.x

 

Is it possible for you to have them give out different ones? I'm pretty sure I had see 10.112.0.x given out.

change the port number Chara 443 Castor 80- see if that works for you


Windows 10 breaking your VPN/TAP adapter(s)? ----Guide-How-To Fix it----

Windows & Comodo Scenario---->>>someinfo&details


#43 ghulands

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Posted 14 April 2018 - 03:53 AM

change the port number Chara 443 Castor 80- see if that works for you

I noticed that both Charra and Castor give out the same IPV4 subnet

 

10.110.0.x

 

Is it possible for you to have them give out different ones? I'm pretty sure I had see 10.112.0.x given out.

Still the same. I was originally using 53 and 2018



#44 Flx

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Posted 14 April 2018 - 08:55 AM

Still the same. I was originally using 53 and 2018

If Chara and Castor are connected at the same time, IPv6 on both will work.IPv4 only one of the two will be used.

*Regarding torrent clients thatz the way it goes as observed and tested in utorrent.

When this IPV6 test is over Stuff will give us the heads up.


Windows 10 breaking your VPN/TAP adapter(s)? ----Guide-How-To Fix it----

Windows & Comodo Scenario---->>>someinfo&details


#45 Judas4all

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Posted 15 April 2018 - 08:12 AM

change the port number Chara 443 Castor 80- see if that works for you

I noticed that both Charra and Castor give out the same IPV4 subnet

 

10.110.0.x

 

Is it possible for you to have them give out different ones? I'm pretty sure I had see 10.112.0.x given out.

This does not work for me. The NL Server always gives me a 10.6 IP, which is bad, as I already have one connection to a AirVPN server on this range.

Dear Team, can you ensure, the test servers are configured as the rest of the server + IPv6 ? So each port gives a different subnet, I'm really missing this.

 

That would help, thanks



#46 Flx

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Posted 15 April 2018 - 09:17 AM

This does not work for me. The NL Server always gives me a 10.6 IP, which is bad, as I already have one connection to a AirVPN server on this range.

Yes we need a new/different IP range for IPv4. (eg 10.100.x.x-10.110.x.x.....10.120.x.x-10.130-.x.x etc).
 

the test servers are configured as the rest of the server + IPv6 ? So each port gives a different subnet, I'm really missing this

Good point.....its up to the Staff/Team to deliver it.


Windows 10 breaking your VPN/TAP adapter(s)? ----Guide-How-To Fix it----

Windows & Comodo Scenario---->>>someinfo&details


#47 NaDre

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Posted 15 April 2018 - 04:27 PM

I noticed that both Charra and Castor give out the same IPV4 subnet
 
10.110.0.x
 
...

 
I count 220 servers. Giving each its own sub-net may not be practical. That would make the limit 255 servers.
 
Using the usual UDP 443 connections on non-experimental servers, I find that so long as the actual addresses on the client side are not the same, even if the sub-net is the same, I can bind my torrent client to one and SQUID to the other with no problems. I never have either VPN connection be the default gateway. I leave the real gateway as the default gateway by adding more specific routing table entries than the ones that OpenVPN adds (with the 128.0.0.0 netmask for IPv4 or the ::/3, 2000::/4, 3000::/4 and fc00::/7 entries for IPv6) pointing back to my real interface.
 
If there was an address conflict, and just changing one of the servers is not an option, you can use the "client-nat" option for the OpenVPN client to make it appear that one VPN connection is on a different sub-net. To use "client-nat" you also have to suppress the "ifconfig" option pushed from the server using the "pull-filter" option, and specify your own "ifconfig ". Unfortunately "client-nat" only works for IPv4.

#48 ghulands

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Posted 16 April 2018 - 10:51 PM

I'm connecting fine over UDP6, which is great. However I've already experienced a few problems with the actual IPv6 connectivity provided on the tunnel interface.

 

In troubleshooting I looked at the tunnel interface.

 

utun1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
inet 10.18.0.8 --> 10.18.0.8 netmask 0xffff0000 
inet6 fe80::426c:8fff:fe48:6c0e%utun1 prefixlen 64 scopeid 0x10 
inet6 fde6:7a:7d20:18::1006 prefixlen 64 
 
It shows "fde6:7a:7d20:18::1006", which is a ULA. So my first thought is that it's network prefix translation (NPTv6). Nope, it's actually overloading NAT, which is causing problems with the app I'm using over the VPN.
 
No developers are implementing STUN for IPv6 so using NAT (overloading) is a really bad practice and will cause problems. Your server/colocation provider should be routing you a IPv6 address block, which you can then use directly in the VPN config, or use NPTv6.

I'm hitting this issue as well. I'm unable to route the IPv6 traffic from my LAN to the OpenVPN interface. I tried using the NPt in pfSense, but still couldn't get it to route.

 

AirVPN Staff, how are we meant to route our LAN traffic over the interface?






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