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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IPv6-connected FreeBSD server is not available via LAN

My Setup I have a FreeBSD server with the following output of uname -a: FreeBSD glacier 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec 4 09:23:10 UTC 2012 ...
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549 views

How to set up Teredo tunnel and share it?

How do I enable Teredo tunneling to the default Microsoft server mentioned in the Wikipedia article (teredo.ipv6.microsoft.com)? Google did not find any documentation, reliable or otherwise, to do ...
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1answer
136 views

Can ping but cannot search

I have a problem with IPv6 connectivity. I have searched a lot of web sites, but I cannot find a solution. Here is the ping output: Ping ipv6.l.google.com [2404:6800:4005:c00::67] (with 32 bytes of ...
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2answers
444 views

Cisco - client can ping but router not

I configured a HE.net IPv6 Tunnel on my router which has two WAN ports. The strange thing is that all clients are able to ping IPv6 hosts on Internet, but my router cannot ping anyone. Here's the ...
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4answers
25k views

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
166 views

How to troubleshoot lost 6to4 packets?

On my VDS, both 6to4 and Teredo seem to work poorly (packet loss is about 40%). just-ping.com shows packet loss 10%-80% both for 6to4 and for Teredo address, but 0% for IPv4 address. When running ...
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1answer
1k views

linux ipv6 default route to loopback

I am trying to understand what is the reason that in recent linux kernels there is ipv6 default route to loopback ::/0 :: !n -1 1 4 lo is it ...
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1answer
529 views

Setup IPv6 in IPv4 tunnel on DLink DIR-615

Recently I wanted to setup IPv6 for my home network. I signed up for tunnelbroker.net service and was provided with IPs. Then I configured the IP address in my DIR-615. But It's not working.. ...
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245 views

Does presence of Link local address mean the system support IPv6?

I am trying to implement dual stack for IPv6 support in a IPv4 system. I have configured a DHCP server which gives IPv4 and IPv6 address to the device. My PC and the VM running on it gets both, IPv6 ...
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135 views

Why is “localhost” slower than “127.0.0.1” in Google Chrome - Windows 8? [duplicate]

There is a very similar previous question and answer, but for windows 7 and/or earlier versions of Google Chrome, here: Is there a way to disable IPv6 in Google's Chrome? That solution no ...
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1answer
175 views

IPv6 routing with multi hop network - using /64 as prefix

I have a scenario, where my PC(SYSTEM1) acts as a router/packet forwarder. And i wanted to have my other PC(SYSTEM2) connected to router(R1) via SYSTEM1. If the subnet length is /48, i know it is easy ...
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1answer
1k views

How can I completely disable IPv6 on Debian (squeeze)?

I'm running Debian Squeeze (with a stock 2.6.32 kernel). I'd like to completely disable any kind of IPv6 traffic. Can I do this? There doesn't seem to be any relevant module loaded. Perhaps some ...
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1answer
1k views

DNS Resolution Issue - Error 105

I cannot connect to the internet. I am having issues resolving DNS (Error 105) in all browsers on my Dell XPS 15 laptop running Windows 8 64x. There is also a dual boot with linux Mint running that ...
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1answer
3k views

6to4 vs ISATAP vs Teredo Adapters

I understand that all three adapters mentioned in the title are related to transitioning IPv4 to IPv6. ISATAP: Transmits IPv6 packets between dual-stack nodes on top of an IPv4 network. Teredo: IPv6 ...
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1answer
598 views

windows 7 didn't do aaaa record lookup

My laptop is installed with Windows 7 SP1 Ultimate , 64 bit version. Recently, I went to the university, which only provides ipv6. I've built a OpenVPN Tunnel to handle ipv4 traffic, but I've found ...
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2answers
43 views

ipv6 compatibility, are there any pitfalls? [closed]

i don't know if this question fits perfect on superuser but i'll ask anyways feel free to move. are there any pitfalls with ipv6? we are planning to move our webservers to an ipv6 only machine, is ...
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1answer
335 views

Weird behaviour on MacBook using IPv6

I recently discovered that my ISP supports IPv6 so I decided to give it a spin, configured the router, tried pinging ipv6.google.com from the router, all fine. I configure RADVD for the internal ...
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1answer
538 views

Why does Windows 7 override IPv6 interface flags?

I'm setting up a basic IPv6 network and when I was configuring one client I observed that after some time the OS enables "managed address configuration" and "other stateful configuration" when "router ...
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2answers
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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
352 views

Win 7 IPv6 default Routes

I am using a DHCPv6 server (Dnsmasq) to assign IPv6 address in my LAN. My configuration works, but I am unable to ping the DHCPv6 server. The route information on host machine does not contain a route ...
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1answer
1k views

Debian - IPv6 disable 'Stateless Address Autoconfiguration'

I've installed Debian 6.0.6 running on kernel 2.6.32-5-amd64 and after the installation I assigned a static IPv6 address to the eth0 interface. This is how my /etc/network/interfaces file looks like: ...
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1answer
190 views

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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419 views

IPv6 Geolocation

I keep regular tabs on where my accounts are accessed from, and sometimes search the locations of IPv4 addresses. I'm now seeing accounts / machines I keep track of being accessed from IPv6 ...
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2answers
3k views

Teredo won't enable on domain-joined Windows 7 system

I'm trying to enable Teredo on a Win7 SP1 x64 system, in order to provide Remote Assistance for a system outside the local network. The local system is joined to a 2008-level domain which I have full ...
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2answers
521 views

What is the performance of a connection using a tunnel broker versus native?

I am wanting to mess with IPv6 for teaching purposes. The problem is my ISP is not currently IPv6 ready. So I was going to use a tunnel broker from Hurricane Electric to solve the problem. The one ...
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How to Disable IPv6 on RHEL-5

I am trying to disable IPv6 on interface eth0 on RHEL 5. Here is a description of what I have attempted. I had already made following entries in ifcfg-eth0 : IPv6INIT=NO IPV6AUTOCONF=NO Following ...
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4answers
12k views

How can I figure out what IPv6 to use if I want to set a static IP for my computer?

I recently installed Windows Server 2012 on my desktop. I changed my connection settings to hardcode my internal IP address as 192.168.0.99 (IPv4). Windows Server 2012 warned me that I should also set ...
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28 views

ipv6 forward does not work [duplicate]

Possible Duplicate: Ipv6 6in4 forwarding I recently setup IPv6 on my network and I have a major issue with the ip forwarding. I have no problem whatsoever to communicate internally in ipv6 ...
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0answers
204 views

Ipv6 6in4 forwarding

I successfully setup 6in4 ipv6 tunnel to enable ipv6 connectivity at home using a remote linux box with a /64. The connectivity works well between the two host, but not with internet. Here is my ...
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2answers
678 views

IPv6 tunnel from behind an ISP-level NAT

Previously, at a different location, I set up a Hurricane Electric IPv6 tunnel, which worked fine, allowed me to access IPv6 only sites and test the native IPv6 connections on my remote servers. ...
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1answer
230 views

Is there a way to test alternate IPv4 routes?

i am using Hurricane Electric's Tunnel Broker service to get IPv6 connectivity. TunnelBroker lets you have access to the IPv6 Internet by using a standard IPv6 tunneling protocol. You send IPv6 ...
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1answer
230 views

Why do I need a managed switch and which one should I buy?

I bought a 2nd router and I want both routers to have direct WAN access to the modem. One of the 2 routers directs VOIP traffic to a telephone line port. This VOIP service is provided by the cable ...
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Disabling IPv6 without tweaking the registry

I read an article that disabling IPv6 needs a registry hack. Is there a different way to disable IPv6 without modifying the registry in Windows 8?
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1answer
153 views

Connect to a ipv4 site with ipv6

Is there a way to connect to a ipv4 website using an ipv6 proxy? cause I have vps that only has ipv6 so I want to setup a proxy server using ipv6 only but want to connect to ipv4 websites
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2answers
101 views

Separate the multiple ipv6 addresses

I have a vps that comes with 16 ipv6. I used one of the addresses and I tried testing the proxy at http://ipv6-test.com/ but it detected that is using the first ipv6 adddress instead of the certain ...
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1answer
237 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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2answers
2k views

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
1k views

How do I access IPV6 from IPV4?

I have been searching for a long time ipv4 to ipv6 proxy program but i nothing found... Currently i have IPv4 address however i would like to try IPv6 address. Is there a simple solution for IPV6 ...
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4answers
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I have IPv6. Why does my connection to the Windows Store fail?

I recently installed Windows 8, and I am unable to access the Store. I receive the error: We weren't able to connect to the Store. This might have happened because of a server problem or the ...
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3answers
483 views

ipv6 find all hosts in a prefix

Using the ping6 command you can find the link-local address of ipv6 hosts out of an interface using: ping6 -I eth0 ff02::1 This will ping everything in the subnet and so you can see what is out ...
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4answers
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4in6 tunneling (via OpenVPN?)

I have a local network with internet access. But unfortunately IPv4 internet connection speed is limited to 1mbps, which is realy sad. Fortunately I have a native IPv6, and there is no connection ...
2
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1answer
406 views

Prefer IPv6 over IPv4 in Windows Server 2003

I am running Windows server 2003 and my Firefox browser keeps using IPv4 instead of IPv6. Well at least http://ipv6-test.com/ says that my browser uses IPv4. How can I force it to prefer IPv6 over ...
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1answer
1k views

Why do I have so many IPv6 (inet6) addresses?

If I run ifconfig on my Linux (Ubuntu) server, I get the following output: eth0 Link encap:Ethernet HWaddr d0:27:88:0f:80:74 inet addr:10.1.0.11 Bcast:10.255.255.255 Mask:255.0.0.0 ...
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1answer
580 views

Windows doesn't respond to IPv6 multicast ping

I'm trying to do a IPv6 multi-cast ping from Linux and I can't get a response from my windows host. ping6 -I eth1 ff02::1 Will find all my Linux and iOS devices but not my Windows hosts. I can find ...
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1answer
79 views

IPv6 Address Formatting and Lookup

I'm seeing an IPv6 address that ends in :f68. Is shorthand for :0f68 or :f680? I'm trying to do a lookup on it and for some reason doesn't like the 3 digit segment. Thanks!
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1answer
3k views

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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1answer
279 views

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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384 views

How to check if protocol 41 (6to4) is filtered by ISP without changing the network configuration?

Obvious way (just setting up 6to4 tunnel and pinging) fails because ip command seems to be read-only on my VPS: can't change any networking-related settings. So I try using raw sockets: ...
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How to redirect local connection to my things in IPv6 on linux?

With IPv4 I can make some program connect to my service instead of where it wants using REDIRECT and DNAT targets in OUTPUT chain in iptables (sometimes combined with -m owner) In IPv6 hovewer I ...
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1answer
611 views

How to configure IPv6 routing from other computers to Teredo client in Linux

My computer (also router) uses Teredo to access and be visible on IPv6. How to assign neighbor IPv6 addresses to other computers for them to be able to be routed to Teredo using the router? What ...