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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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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1answer
763 views

Do all IPv4-compatible IPv6 devices have two IPv6 addresses?

Is it possible for an IPv4-compatible IPv6 device to have only one IPv6 address? For example, when device-A talks to an IPv4 device, device-A communicates using its IPv4 address 2.2.2.4. Later, when ...
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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
1k views

IPv4, IPv6 and IPTables

I have just recently learned that even if I block all traffic to my webserver using iptables it is still vulnerable to external attacks via IPv6. In my understanding, this renders iptables-only ...
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1answer
2k views

Why is IPv6 ping failing to access google.com?

I have found that ping google.com from my Windows 7 box has stopped working. Below is the output - note that the IPv4 ping works, and Yahoo works. Is my local router at fault here? ...
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1answer
1k 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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0answers
2k views

How can I get windows to release an IPv6 address

I have a windows system with an IPv4 address and an IPv6 address and I'm trying to figure out how to release my IPv6 address. I've tried ipconfig /release6 and I get this error An error occurred ...
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1answer
314 views

IPv6 Connectivity Issue - Cannot connect to IPv6 sites intermittently

I've configured an ISATAP router to enable me to connect to IPv6 sites. The interesting thing is that it sometimes works and sometimes does not and I do not know where the problem lies. Can anybody ...
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2answers
1k views

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
4k views

How will home networks work in the IPv6 world?

Right now, I have a home network setup behind a Netgear router. That router has a public IP address I get from Comcast. I also have a computer setup on my home network running Linux that runs a DHCP ...
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2answers
550 views

IPv6 traffic shaping

With the second IPv6 Launch Day behind us, i'm stuck waiting for traffic shaping support on IPv6 before i can deploy it to our network. i currently use m0n0wall as a router with its IPv6 support, ...
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9answers
108k views

Why do I get “General Failure” when pinging host name on a Win 7 node on the network?

This is a very peculiar problem with a station on our network. The client pc is running Windows 7 Pro. What makes this problem interesting is that this client is the only node on the network that ...
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1answer
1k views

IPv6 local address in hosts file

I have set up a local domain on my Apache server. Then I added the following line in my /etc/hosts file ::1 exampledomain.local After I trying to navigate to it, (I tried ...
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0answers
766 views

How to install IPv6 on Windows 2003

How do you install IPv6 on Windows 2003 ... and get it working ? I'm trying to add IPv6 to one of my development machines which is Windows 2003. I've followed the knowledge base article on MSDN, and ...
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2answers
691 views

Can't browse websites using IPv6

I have configured my Windows 7 to use IPv6 (auto IP & OpenDNS IPv6 DNS) / IPv4 disable. Now the problem is that only ipv6.google.com is working but no other website is opening. How do I access ...
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4answers
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How do debug DNS name resolution? (nslookup works, but telnet doesn't)

I'm trying to connect to a website: http://superuser.com.sixxs.org i can ping the address: C:\Users\Ian>ping /6 superuser.com.sixxs.org Pinging ipv6.nginx.sixxs.net [2001:838:2:1::30:67] with ...
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1answer
387 views

How to determine a PC's IP v6 address

How can you determine a PC's IP v6 address ? I have 2 machines, and if I do an ipconfig on one, I get ... Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : lan ...
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4answers
2k views

Does disabling IPv6 decrease my surface area of attack and increase performance?

I have colleague that is on this whole kick of disabling IPv6 while leaving IPv4 on each new machine that comes in before deploying in our environment. He takes his personal anecdotal evidence and ...
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1answer
1k views

Failed to fetch security.debian.org on Windows host

I am using 64-bit Debian 6.0 (squeeze) from a Windows 7 64-bit VirtualBox host, but I'm unable to successfully ping security.debian.org from both the guest or the Windows host. E.g., from the ...
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1answer
346 views

Why does it take so long for Eclipse to connect to a JUnitRunner process when IPv6 is enabled?

When IPv6 is enabled on my computer, half a minute passed between starting a new JUnit process and the test tree appearing in the JUnit view. When I disable IPv6, the tests appear immediately. What ...
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1answer
6k views

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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2answers
15k views

Pinging own machine returns an IPv6 address instead of IPv4

When I ping my own machine I get an IPv6 address: Reply from fe80::1004:p8f0:9e40:a42c%10: time<1ms Reply from fe80::1004:p8f0:9e40:a42c%10: time<1ms I used to get the IPv4 address (eg. ...
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1answer
3k views

IPv6 source address selection and routing in Linux

I'm in the process of setting an ipv6 on my test network. I work with a /56 network and CentOS 6.2. I have an interface with 2 IPv6 addresses on 2 different networks : 2b0 1:abcd:4001:c00::30/56 ...
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2answers
2k views

IPv6 Address not setting

I am having a problem setting up IPv6 Address on ubuntu 10.04.I have disabled my network-manager. My /etc/network/interface file looks like this: iface eth0 inet6 static pre-up modeprobe ipv6 address ...
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1answer
6k views

Setting Remote Desktop to allows IPv6 connections

Setup: Basically I have 3 machines (2 virtual and 1 physical) that I would like to be able to RDP in to from outside my NAT (a router). The VMs are Windows 7 and Windows XP, both fully patched ...
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1answer
316 views

Could not open IPV6 addr on web browser

I have ipv6 address fe80::21f:a4ff:fe91:2e44%4. This is the address of modem/router. I am unable to open this address in browser to view the web configuration. I am able to telnet to ...
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2answers
850 views

IE9 on Windows 7, ipv6.google.com does not work, but in chrome it does?

I have an ipv6 connection, I get addresses, DNS is working and I can ping (with ping -6) ipv6.google.com. I can get to and use google in Chrome, but it does not work at all in IE9. It just says that ...
3
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1answer
415 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
1k views

How to port-forward IPv6 in m0n0wall?

How do i port-forward IPv6 packets in m0n0wall? For example i want to forward traffic arriving on port 443 of my router to another IPv6 address: Interface: WAN Protocol: TCP External port range: ...
0
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3answers
479 views

Since IPv6 has larger addresses than IPv4, how will that affect performance?

IPv4 are 32 bit addresses, while IPv6 are 128 bit. It's 4 times larger, sure on a small scale maybe not a big difference, but on a world wide scale will it make a difference? Are their any messures ...
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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
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IPV6 auto configuration not working in Ubuntu Natty

In Windows 7, my computer can automatically get a IPV6 global address and use IPV6 network, but in Ubuntu Natty, I can't find out how to let stateless configuration work. My network is a university ...
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4answers
211 views

Are there any home ISPs that offer external IPs for all devices on the network? (No NAT)

NAT is a a real pain, and the large address space in IPv6 doesn't need it. Are there any ISPs that offer actual home routing, giving each computer a global IP address, rather than a local one? This ...
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2answers
372 views

Privacy, VPN and routers

Ever since this ACTA push-up the things are starting to heat up around torrents and privacy. I am using Tribler now, but this is not secure enough for me. Not enough privacy. I've been using in the ...
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1answer
272 views

I can not see ipv4 and http, I can just see ipv6 and SSDP [closed]

I have a real huge problem, when I am connected through the wireless of my university, I can just see adresses like this : 1823731 14856.287768 fe80::74b6:2d79:4343:41e1 ff02::c SSDP ...
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1answer
788 views

dhcp6 server config problems

I'm trying to configure an IPv6 DHCP server in gentoo. So far: /etc/dhcp/dhcpd6.conf - subnet snippet: subnet6 2001:db8:21e:101::/64 { range6 2001:db8:21e:101::6 2001:db8:21e:101::100; ...
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1answer
422 views

What are the equivalent IPV6 versions of IPV4 special-use adresses?

I'm trying to make a private network with 5 computers bellow an external ADSL router with NAT, but internally I want to use IPV6. To do this I need to use private special-use IPV6 addresses, such as ...
2
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3answers
820 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 ...
8
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1answer
2k views

Back to My Mac registers services using loopback interface IPv6 address

I'd like to be able to use Back to My Mac over the IPv6 internet. I've already got IPv6 access (i.e. My Airport is assigned a /64 block from my ISP and sends out RAs so everyone on the network can ...
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2answers
5k views

Linux/bash: How to get interface's IPv6 address?

What command can I use to get IPv6 address of an interface in a script? Update: Output of sed from one of answers. $ ip -6 addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 inet6 ::1/128 scope ...
3
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1answer
520 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 ...
5
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2answers
6k views

Accessing IPv6 addresses through an SSH tunnel

I have a remote Arch Linux server which has IPv6 enabled (through Tunnelbroker, I am able to do ping6 ipv6.google.com successfully) and I want to know if it's possible to use PuTTY on my Windows 7 ...
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1answer
477 views

IPv6 on ASUS WL-520GU or other

It's coming this summer. IPv6!!! This DD-WRT tutorial is information overload for me. I can't tell if this would be supported on my ASUS WL-520GU, and I don't see a clear way to make it a secure ...
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1answer
217 views

Why does NAT64 require DNS rewriting?

When a IPv6 only host wants to reach a IPv4 only host, why does the DNS server (or possibly the NAT-PT gateway?) have to rewrite the A responses to AAAA? Couldn't IPv6 simply embed the IPv4 address ...
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3answers
443 views

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
1k views

Why does IPv6 use 128 bit addressing? [closed]

When I first heard about IPv6, I just assumed that it doubled the number of addressing bits in IPv4, from 32 bits to 64 bits. This would have been enough for at least 2.6 billion addresses for each ...
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3answers
1k views

What do the numbers used in a IPV6 address mean?

I am trying to understand IPV6. I have a server with the following IPV6 address: 2607:f750:0:3f::f59. I don't understand what the numbers mean. It looks totally different from an IPV4 address. ...
2
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1answer
71 views

Determining the way the IPv6 interface identifier was created

In IPv6 the 64bit interface identifier of an IPv6 address can be determined in one of 3 ways: Stateless Address Autoconfiguration: put in the MAC address of the NIC (+ FF:FE and flip a bit). ...
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2answers
1k views

Can't ping Linux IPv6 address from Windows XP

I gave an IPv6 address to my SUSE Linux machine on a VirtualBox VM with ifconfig eth0 inet6 add ... I can't ping that address from Windows XP (vice versa) The address of the Linux machine is efbb::26 ...
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3answers
11k views

How can I make localhost resolve to 127.0.0.1 instead of ::1?

When I ping localhost the address resolves to the ipv6 loopback of ::1 My MySQL and Apache installations expects the ipv4 address of 127.0.0.1 How can I configure my WindowsXP to resolve localhost ...