IPv6 is the newest version of the Internet Protocol. It is designed to supersede IPv4 as it offers many more addresses.

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How to setup an IPv6 tunnel with AirPort extreme and Windows Server 2008

My setup: Windows Server 2008 VM (static private IPv4) -> Airport Extreme -> Cable Modem I setup a 6-over-4 tunnel at tunnelbroker.net, configured IPv6 on AirPort Extreme, and could successfully ...
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3answers
276 views

Is an openVPN with ipv6 more secure than PPTP VPN with ipv4?

I have heard that using ipv6 in combination with a PPTP vpn can expose your true ip address, so I have been using a PPTP VPN with ipv4 for the past few months. I am considering switching to an openVPN ...
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35 views

unable to connect ubuntu ipv6 host to cisco router

Currently I've been working to set up an IPv6 LAN network with ubuntu hosts and routers. Here's my current configuration: iface eth0 inet6 static address 2001:ac10:101::2 netmask 64 ...
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3answers
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How to disable autoconfiguration on IPv6 in Linux?

How can I permanently disable autoconfiguration of IPv6 in Linux? When I try to manually delete an address from an interface with: ip -6 addr del 2001:0db8:85a3:0000:0000:8a2e:0370:7334/64 dev eth1 ...
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0answers
38 views

I am getting different internet speeds on different computers with the same settings

I have two Crunchbang machines with identical /etc/sysctl.conf and /etc/default/grub files. On both of the sysctl.conf files I have ipv6 disabled, and the grub files are at their defaults. However, I ...
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1answer
129 views

No 6to4 default route in Windows 8.1

On my Windows 8.1 laptop, i can’t connect to native IPv6 hosts over 6to4. route print -6 shows that no default route is set: ...
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1answer
84 views

IPv6 unreachable until restart interface

IPv6 works just well in most time, but everyday 's midnight, our network is cut up by school to force us go to bed, and recovered at next day 's 6am. This is done, in my guess, by justing power off ...
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27 views

Non incoming IPv6 multicast with routed AP to eth port

I am using a Vocore with Barrier Breaker to receive an IPv6 multicast stream; my sender is a Windows Desktop where VLC is sending a stream through the wireless interface to the multicast IPv6 ...
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1answer
75 views

How is IPv6 stateless autoconfiguration supposed to be used?

I've been using IPv6 for many years now, but it wasn't until I switched ISP recently (and with that, from 6to4 to 6rd) that I found out that stateless autoconfiguration only works on /64 subnets. I ...
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35 views

Visiting a webserver behind a NAT that has a IPv6 ICP IP address

I set up a webserver behind my xfinity WiFi router/modem. Behind the router, I have 10.0.0.X addresses. My public ISP IP address is an IPv6 address. When I login to the router/modem and set up port ...
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49 views

How to connect a local network to IPv6 site / net?

I want to connect my home network (IPv4 only conection to internet) to my server (IPv4/IPv6), what is the best way to do this? Current setup: Home network ("HOMENETWORK") with Linux (Ubuntu 14.04) ...
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1answer
157 views

Why can't Chromium connect to http://[::1]:8080/ (i.e. IPv6 localhost)?

For developing a statically generated website on my laptop running Debian, I use weborf running on IPv6 localhost, port 8080: weborf -i ::1 -p 8080 -b .. I can connect to http://[::1]:8080/ without ...
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1answer
55 views

Port forwarding through 2 routers with mixed IPv6 and IPv4 [closed]

My ISP recently changed to IPv6 which made my port forwarding through 2 routers not working anymore. My internal router only supports IPv4 afaik. Is there a way to still forward ports through these ...
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2answers
229 views

Packets not received when running IPv6 through a bridge

I have a setup with two network interface: eth0 and tap0, bridged by br0 bridge name bridge id STP enabled interfaces br0 8000.************ no ...
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0answers
40 views

How do I configure ipv6 on a LXC configured bridge?

I am trying to figure out how I can add IPv6 to lxcbr0 that LXC creates. The IPv4 could be configured in /etc/default/lxc-net but I find nothing about IPv6. Can this be done? I am running Ubuntu 14.10 ...
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1answer
116 views

Linux- OPENSUSE ipv6 related configurations in sysctl.conf lost after reboot

I am using: SUSE Linux Enterprise Server 11 (x86_64) VERSION = 11 PATCHLEVEL = 1 I added the following parameters to /etc/sysctl.conf: net.ipv6.conf.default.accept_redirects = 0 ...
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3answers
6k views

How do client applications know to use IPv4 or IPv6?

How do servers/computers/users/applications know to request a resource over the Internet with an IPv6 address vs. and IPv4 address?
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2answers
53 views

IPv6 in a SOHO network

If the router in my SoHo network (a Netgear DGND3700) doesn't support IPv6 is there any benefit at all in enabling IPv6 across the server and clients in that network? The successor to that one (a ...
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0answers
74 views

Ping Global IPv6 address on Ubuntu VM

My setup is like this: Host: Windows 8 with Virtualbox VM: Ubuntu 14.04 with 2 network adapters, eth0 a Host-only Adapter and eth1 a bridged adapter connected to my Wireless. From my host to my VM I ...
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0answers
49 views

Tunneling IPv6 through IPv4 for a specific application?

Client: Supporting only IPv4 (OS: Windows 7) VPS: Supporting IPv4 and IPv6 (OS: Debian) On my client machine I run Proxifier in conjunction with PuTTY. With PuTTY I can create an SSH connection to ...
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1answer
42 views

ipv6 forward not work

I have the following problem. I am trying to setup an ipv6 network at my home using my server with an ipv6 tunnel as a gateway. Here is my setup SERVER: server interfaces: he-ipv6 Link ...
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0answers
39 views

How can I test IPv6 security with a mikrotik router?

I'm experimenting with IPv6, and I want to test security and encryption. Does anyone know if there is some way to send a secure test packet between my computer and Mikrotik router? Perhaps using ...
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0answers
36 views

Globally Unique IPv6 Address on a VM running ubuntu

For testing purposes, I'd like to be able to deploy VM's running Ubuntu that have globally unique IPv6 addresses. The VM software is Virtualbox. I am able to make link local addresses (as said by ...
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0answers
110 views

Only Google, Facebook, Wikipedia and select other sites loading

I have a new Speedport 724v Type B router which reports that it is successfully connected to the internet. The problem is: only Google, Facebook, Wikipedia, and a select few other websites load. Most ...
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2answers
147 views

Linux Networking: How to forward incoming IPv6 connections from the internet via a second IPv4 interface to other computers in a local network?

I have some kind of Debian server-gateway-zombie that has two network interfaces: eth0 and wlan0 (yeah, wlan0... I know.). eth0 is connected to a internet cable modem that assigns an IPv6 address to ...
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1answer
57 views

Are IPv4 and IPv6 incompatible? [closed]

Are IPv4 and IPv6 incompatible? Can they be perceived as 2 different internet layer protocols? If yes, what are the significant differences which make them incompatible?
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1answer
127 views

Windows 7 Home Premium cannot connect to internet via wireless or ethernet connections

I have an HP laptop and I cannot connect to the internet even though it says "Internet Access". When I try I get "Cannot access page", then the browser closes and searches for a solution that results ...
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1answer
179 views

Dynamic DNS with Dual-Stack IPv4/IPv6

In the past, I have been providing services (i.e. HTTP, VPN, etc.) on my network via port forwarding. Each service has its own domain name (i.e. home.domain.name, deluge.domain.name, vpn.domain.name, ...
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1answer
1k views

Dynamic DNS for both IPv4 and IPv6 (using freedns.afraid.org or others)

I want to set up dynamic DNS on my Fritz!Box 7490, so that it is reachable both on IPv4 and IPv6. Note that I want to reach the Fritz!Box itself, and not a computer behind it. The scenario is that I ...
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1answer
50 views

Different servers on the same port ipv4 / ipv6

Say I have two TCP servers A and B. A is an ipv4-only server listening on 127.0.0.1:10000. B is an ipv6-only server listening on ::1:10000. Can I start these on the same machine? That is, how are IP ...
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1answer
43 views

Execute script on ipv6 prefix change

How can I execute a script or program whenever my (world-routeable) IPv6 prefix changes? If there is (currently) no easy way to do this, a pointer to the corresponding Posix system calls would be ...
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1answer
253 views

SSH using IPV6 getting error “No Route to Host” in Mac OS X 10.10.1

I am trying to SSH with IPv6 in Mac OS X 10.10.1 (Yosemite) but I am getting error No Route to Host"** I can do it successfully with IPv4. Can anyone guide me please if it require any network ...
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2answers
86 views

Neighbor solicitation or advertisement not forwarded between interfaces

I have Ubuntu 12.04 installed in a VirtualBox VM on a Windows 8 host computer. Windows 8 had a hosted (wireless) network to which I can connect with my Android phone. The eth0 interface of my VM is ...
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Unable to connect to IPv6 from Windows 8.1 via OpenWRT router

I'm new to Ipv6 and trying to learn it. So, I decided to use 6to4 tunneling from Hurricane Electric in my OpenWRT router since my ISP does not provide IPv6. It work perfectly in my router. But when I ...
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1answer
1k views

ifconfig ignores alias on IPv6

When I add an IPv4 address for the interface eth0:0 with ifconfig, it is created correctly: ifconfig eth0:0 add 192.168.10.10 This can be verified by ifconfig or "ip a". When I add an IPv6 address ...
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1answer
35 views

IPv6 multicast address for all nodes on network

I've got a basic network with 3 nodes (VM's). One node publishes an event, the other nodes listen for it and print something when received. It used to work one-on-one (so node gives event to each ...
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4answers
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How to disable ipv6 on a specific interface in linux?

Could someone tell me how to disable ipv6 auto-config on a specific network interface in CentOS? The current situation is: A PC has two network adapters eth0 and eth1 that are connecting to the same ...
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1answer
44 views

Is it possible to setup a private IPv6 subnet and route to the Internet?

I am still trying to figure out how IPv6 works. But I had a question. I currently have an pfSense firewall attached my Comcast service and configured with to request a v4 and v6 WAN address from ...
6
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1answer
2k views

Why does my Windows have hundreds of temporary IPv6 addresses?

My ISP enabled IPv6 for me a few weeks ago. Now I noticted that Windows (8.1) gets a lot of temporary IPv6 addresses. ipconfig has the following output (real addresses are obfuscated): Windows IP ...
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0answers
150 views

Why can't I have IPv4 and IPv6 web access simultaneously?

I'm using a 6to4 tunnel from tunnelbroker.net to gain access to the Internet via IPv6. Even after getting the tunnel built and properly established, I wasn't able to get access to IPv6 web pages ...
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1answer
132 views

Windows DNS Change IPv4 vs IPv6

I want to change my DNS settings in Windows and I want to use the Google DNS Servers. In all tutorials (Microsoft or Google) I read change IPv4 OR IPv6.. What does it mean? If I change only IPv6 ...
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0answers
27 views

IPV6 address removed from interfaces while I make that interface down but IPV4 address still there

Firstly I assigned IPV4 and IPv6 addresses in an interface in Linux..then I brought the interface DOWN and then again UP that interface.. The problem is that then the IPV6 addresses are removed but ...
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1answer
45 views

ipv6 route add issue while adding a particular nexthop address

// IPv6 route add issue in kernel for a particular subnet...(1000::)...why? // Adding ipv6 route : sudo /sbin/ip -6 route add 1005:1006:1007:1008::1/64 via 1001:1002:1003:1004::1 dev eth0 RTNETLINK ...
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3answers
30k views

IPv4 vs IPv6 priority in Windows 7

I have IPv6 connectivity through Hurricane Electric tunnel. Since IPv6 day this year, many services (google.com, facebook.com, etc.) enabled IPv6 on their main domains. On my Windows machine, IPv6 is ...
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1answer
70 views

Block (nullroute?) an IPv6 hostname using /etc/hosts

I'm trying to prevent my web browser from communicating with certain hosts (mostly ads and tracking). I have a list of such hosts in my /etc/hosts file. For IPv4 I can do: 255.255.255.255 ...
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0answers
42 views

Connect to IPv6 network with a VPN not supporting IPv6

I have connection to IPv6 network, as well as a VPN connection (IPv4 only). However, the two conflicts with each other: when I connect to the VPN, I cannot connect to IPv6 host, by domain name or IPv6 ...
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0answers
24 views

Access remotely two computers via IPv6 [closed]

I have a little problem on my house. Recently, I installed Teredo on two computers using sudo apt-get install miredo. Now I can access my two computer via IPv6 using Sockets in C. My goal is: I am a ...
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2answers
84 views

How to IPv4 through IPv6?

My ISP (Unitymedia Germany) tunnels IPv4 traffic through slow and unstable CGNAT (they call it "AFTR", which seems to be a similar thing) but comes with reliable and native IPv6. Now, is there any ...
3
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2answers
1k views

Using Raspberry Pi as IPv6 router for network

I've succeeded in setting up IPv6 for my Raspberry Pi with tunnelbroker.net. However, I would like to share the /64 I got amongst the other devices in my network. The router of the network is a Virgin ...
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2answers
814 views

Comcast Speed test slower performance on the IPv4 test than on the IPv6 Test

I have two computers. On one I get the same performance result for both IPv4 and IPv6. On the other I get slower (about 50%) on IPv4 than on IPv6. Why? Is there a config to change it?