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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DHCPv6 server + client on Linux

Which IPv6 capable DHCP server and client is best to use on Ubuntu? I can't find a good HOWTO. ISC DHCP?
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Possible to Use IPv4 and IPv6 at the same time?

Can IPv6 and IPv4 work simultaneously?
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2answers
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How to connect 2 PC by IPV6 in a LAN?

I have two PC, A and B, connected by a switch. I installed ipv6 on both of them. Autoconfigure give them 2 IPV6 address: A preferred link-local fe80::21e:4fff:fec4:50f7, life infinite B ...
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How to get the IPV6 IP address of Linux machine?

I want to get IPV6 address on my linux box. I know one command to get the IPV6 address. Command: $ ip addr show dev eth0 | sed -e's/^.*inet6 \([^ ]*\)\/.*$/\1/;t;d' Output: ...
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What protocol is Window's v6v4tunnel implementing?

Microsoft Windows allows the creation of an "IPv6-in-IPv4 point-to-point tunnel": >netsh interface ipv6 add v6v4tunnel "My Tunnel" 192.168.1.13 209.51.181.2 My question is: what protocol is ...
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Get IPv6 address of an IPv4 machine?

Given two machines on a local network, both connected via IPv4 and IPv6, can machine A get the IPv6 of machine B if it has machine B's IPv4 address? I presume the ARP cache should be able to provide ...
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How to use IPsec?

IPsec is a protocol suite built on top of IP. Originally designed with IPv6, it also exists in IPv4. IPsec enables encrypted communications between hosts at the IP level (that is, upper layers ...
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124 views

When will the LIR's run out of the IPv4 addresses? [closed]

"The Asia Pacific Network Information Centre, the RIR responsible for assigning IP addresses to the region, announced the release of its last available batch of IPv4 addresses on 15 April." ...
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204 views

How to block a program from using IPv4?

I have a program that can communicate over IPv4 (TCP and UDP) and over IPv6 (TCP and UDP). I want to block the program from being able to use IPv4. I tried the Windows Firewall: Except it blocks ...
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3answers
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How do I know if a router can handle multiple static IPs?

How do I know if a router can handle multiple static IPs? Is there a protocol or something I should look out for? Also - how important is it that my router can support IPv6?
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How to configure OpenWRT to route IPv6 traffics?

I recently bought a router and flashed OpenWRT, with kmod-ipv6 and radvd installed. I was trying to set up IPv6 connections, but I can only ping ipv6.google.com from the router, not the computers ...
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How do I properly access Google through IPV6?

I'm trying to access Google through IPv6. However, it seems to want to send me back to IPv4! I did a DNS lookup on IPv6.google.com at http://centralops.net/co/ and found their IP, then tried this... ...
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How to disable IPv6 on Debian Wheezy?

I know there's a wiki entry http://wiki.debian.org/DebianIPv6#How_to_turn_off_IPv6 that shows how to disable IPv6 in Debian Squeeze, but that's a 2.6.* kernel. What about 3.2.* kernels running ...
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1answer
355 views

Will the removal of NAT (with the use of IPv6) be bad for consumers? [duplicate]

Possible Duplicate: How will IPv6 impact everyday users? (World IPv6 Day) As I understand when we have finally made the switch to IPv6 not only will NAT be unnecessary but it is ...
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2answers
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Map a Windows network folder using IPv6

I need to map or browse a network folder. I can only use IPv6 in the browser / URL. Is this possible? I am using two Windows 7 machines, one Vista PC, and one Windows Server 2008 R2 machine. The ...
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2answers
842 views

Can two offices communicate if one uses IPv4 and the other IPv6?

If I get an IPv6 from my ISP for my new office branch, will I be able to communicate with my old branch that is using IPv4?
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IPv6 - Public IPs, private IPs, IPs derived from the MAC address? Confused!

I'm pretty much excited for IPv6 because of the large address room and (potential?) owning of more than one IP, or even tens of IPs (/122 subnet?) Though one magazine has now confused me. In a ...
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IPv6 stateless autoconfiguration + DNS

How do you use radvd on linux/Ubuntu to distribute IPv6 DNS server addresses?
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when describing an IPv6 subnet, what does the /n notation mean, where n = 64, 128, etc.?

I have seen IPv6 subnets described as /64 or /128, particularly by hosting companies. Does a /64 subnet mean there are 64 ipv6 addresses? Or 64bits worth of ipv6 addresses?
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1answer
539 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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1answer
457 views

How do you view ipv6 websites through browser?

When I had Apache installed and running, I could type in "127.0.0.1" or the inet address I got from ifconfig, and I would be connected to my server. However, if I type in "http://[::1/128]" in my ...
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bind-address = ::1 # however, netstat shows 0.0.0.0:3306 LISTENING

I'm running MySQL 5.6 on 64-bit Windows 7 with IPv6 and IPv4 enabled. In my.ini: port=3306 bind-address = ::1 I was hoping to use IPv6 and restrict to the loop-back adapter. I used ::1 instead ...
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disabling ipv6 on windows 7 64bit

not sure what i am missing here.. every website suggests creating this reg key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\DisabledComponents as DWORD and setting its ...
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1answer
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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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How can I manually generate a new temporary ipv6 address by generating a new host identifier on Windows/Linux

Right now I am playing a bit with IPv6. Is there any way how I can manually force Windows/Linux to generate a new host identifier instead of waiting for Windows/Linux to do it on it's on schedule ...
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Disable IPv6 on Interface in Debian Wheezy?

I'm working on Debian Wheezy: $ uname -a Linux openstack1 3.2.0-4-amd64 #1 SMP Debian 3.2.51-1 x86_64 GNU/Linux I set up two networks for VirtualBox: # Public network vboxnet0 (10.1.0.0/16) ...
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1answer
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Understanding the black magic of IPv6 addresses

my router (AVM Fritz Box) is supporting 6to4. So far it works but I want to understand what's going on. The last few hours I spent on a IPv6 book. There are many things I understand now but there is ...
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2answers
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Why is Windows 7 announcing itself as an IPv6 router?

I have a 6in4 ipv6 connection from a linux box to a broker. I use gogoc to establish the connection to the broker, and radvd to advertise the route to clients on the network. All this appears to ...
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2answers
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Should I get a router with ipv6 support?

I'm in the process of getting a new gigabit router so I can transfer files faster to and from my Lacie Network Space. I found Asus RT-N56U Wireless N Dual Band Gigabit Router. Its performance is ...
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1answer
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How to know if your browser is connected to the Ipv4 or Ipv6 address of a website?

Is it possible to know if a browser (Internet Explorer/Google Chrome in Windows 7 SP1) is using the IPv4 or IPv6 address of a website? What I'm looking for is for some kind of visual feedback without ...
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How to use ipv6 with Vagrant and VirtualBox?

I have a Vagrant setup running Ubuntu in VirtualBox. I'm trying to create a public virtual network interface that I can access from the host. I have had no problem doing this with ipv4. Using ipv6 I ...
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870 views

SSH over IPv6 got “Permission denied” error

I have a server that I can connect via SSH over IPv4 address. Now I want to SSH over IPv6. I'm sure that my server is assigned with a valid IPv6 address, and I've configured sshd to listen on v6 ...
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2answers
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Too many Tunnel Adapter Interfaces

If I open a command prompt on my machine and type ipconfig /all, I see lots of Tunnel adapter Local Area Connection* 9: Media state . . . . . . . . . . . . . : Media disconnected ...
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1answer
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IPHLPSVC High CPU in Windows 8 x64

I was experiencing consistent high CPU usage in Windows 8 Pro x64. The cause was svchost running at a constant 25% CPU, even at idle. I checked the services that the svchost was running, and toggled ...
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1answer
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Can I prioritize IPv6 traffic over IPv4 traffic on Linux?

Is there a way I can give traffic over IPv6 a higher priority than traffic over IPv4? Purpose is 2-fold: Promote IPv6, and be able to connect even when my server is swamped by IPv4 users.
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1answer
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ignore ipv6 router advertisements for static addresses with bonded interfaces

I need to attribute static IPv6 addresses (not use autoconfigured addresses, and ignore router advertisements). This can be done as follows for a standard interface like eth0 iface eth0 inet6 static ...
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Is there a way to enable/disable IPv6 without restarting Chrome?

chrome://net-internals/dns#dns has a button which allows us to enable IPv6 for Host resolver: This is how it looks like after clicking Enable IPv6: How do I revert to the previous state without ...
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Which Linux-based firewall supports IPv6?

Out of the box neither IPCop nor ipfire support IPv6, not even on the green interface (internal LAN). How do I add IPv6 support to one of them? If that's not possible, is there a linux-based embedded ...
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3answers
718 views

IPv6 and IPSec - why do I need an external daemon?

I read that IPSec is mandatory for IPv6 implementations. Does this mean that it should be handled by the OS and that IPSec configuration should be mandatory for IPv6 to work? If so, why is this not ...
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3answers
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MacBook Pro wants to connect to IPv6 addresses for some strange reason

A very weird behavior on a MBP. It seems that some websites are now advertising Ipv6 addresses (e.g., www.doodle.com, addons.mozilla.org, etc.). For some reason, even though I only have an Ipv4 ...
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3answers
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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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3answers
518 views

What's a good IPv6 tutorial? [closed]

How do I get started on IPv6? There are many urban myths about IPv6 (today, I heard that enterprises don't like IPv6 because they can't control their BLOCKS like they do today with IPv4). Is there a ...
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2answers
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Without NAT on IPv6, and only one DNS name, how do i talk to my servers?

Right now we own one domain name (e.g. superfault.com). From the internet i can connect to a variety of networked devices using that single DNS name: superfault.com ...
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1answer
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How to configure monowall to use TunnelBroker?

How do i configure monowall for IPv6 connectivity with Hurricane Electric's TunnelBroker.net IPv6 tunneling service? Note: i'll be answering the question myself; since this site is a wiki IPv6 ...
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1answer
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wireshark: how to capture traffic between guest and host OS?

I'm trying to set up a lab to demonstrate ipv6 attack and detection mechanism on my Macbook. This is my set up with virtualbox: Host OS: OS X 10.8.2 IPv6 automatically, wireless connection Geust OS: ...
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1answer
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How to add multiple IPv6 address for single host in /etc/hosts?

I want that a name should be resolved with multiple IPv6 addresses. I don't have access to a DNS server and I don't want to run a demon for that purpose. I want to add the entry in /etc/hosts and it ...
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1answer
823 views

Getting an IPv6 repsonse when IPv6 interface is disabled. Why?

Is it normal it get an IPv6 address when a hostname is resolved and the IPv6 interface has been disabled (unchecked from network adapter settings)? How do I know for sure IPv6 has been disabled?
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1answer
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What is Hurricane Electric's IPv6-enabled DNS server?

Hurricane Electric has IPv6-enabled DNS servers for use with their tunnelbroker. What are the addresses for these servers?
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What is the best practice for ipv6 address assignment when using a dynamic prefix?

My ISP recently enabled ipv6 and I thought to myself this would be a good opportunity to roll out ipv6 on my LAN. Unfortunately, I only get a dynamic prefix so I never know the addresses / the subnet ...
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2answers
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How to get both IPv4 and IPv6 dynamic address

Running dhclient gets me an IPv4 address. Running dhclient -6 gets me an IPv6 address. And the man page says you can't combine v4 and v6. So how to get both v4 and v6 addresses at the same time?