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 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 ...
2
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1answer
974 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 ...
0
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1answer
139 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 ...
8
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3answers
2k views

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 ...
1
vote
1answer
90 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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3answers
322 views

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 ...
0
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0answers
84 views

VPN service for 4in6 [closed]

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
votes
1answer
201 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 ...
0
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1answer
225 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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0answers
185 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 ...
1
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1answer
56 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!
3
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1answer
586 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 ...
3
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1answer
140 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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0answers
175 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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0answers
73 views

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 ...
0
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1answer
255 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 ...
0
votes
3answers
572 views

How to configure a large mtu (linux)

I have a gigabit ethernet connection from my laptop to my router, and a working ipv6 connection to the internet. I can receive very large packets from sites on the internet, with sizes up to at least ...
0
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1answer
375 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 ...
3
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1answer
221 views

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 ...
0
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0answers
124 views

Is there a 4to6 adapter routing IPv4 traffic over IPv6 network? [closed]

I know there is 6to4 that allows IPv6 packets to be transmitted over IPv4 network, but I want something to the contrary, because our school does not charge for IPv6 traffic. Is that possible?
1
vote
1answer
62 views

What protocols will/are ISPs use for IPv6 deployment?

Currently ISPs deal out addresses via DHCP for IPv4 dynamic (single) addresses. What protocol will/are ISPs going to use for IPv6 when they can hand a customer an entire /64 (or /48 if they are nice) ...
2
votes
1answer
310 views

How to prefer ipv6 over ipv4 only for specific websites?

I only have ipv6 connectivity via a HE tunnel on my router, so normally I want to prefer ipv4 over ipv6. For some websites however, I would like to prefer ipv6. Right now I have just set ...
3
votes
3answers
377 views

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: ...
1
vote
1answer
72 views

Why can I not (re-)install IPv6 on Windows XP Home laptop?

Years ago for some unknown/mistaken reason I uninstalled IPv6 on one of my XP laptops. I have not been able to reinstall IPv6 - neither via the commandline nor the GUI. The error message is: ...
2
votes
1answer
870 views

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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0answers
271 views

How do I get Tomato to use IPv6

My ISP provides native IPv6 and it works great when I connect directly with my macbook to the ethernet port. I get a ipv6 assigned and all IPv6-only sites works great. But when connecting through my ...
2
votes
1answer
150 views

Relation of IPSec and IPv6 to SSL/TLS

My understanding is that IPSec is a security layer added inside the IP protocol to make IP itself a secure transport. My understanding of IPv6 is that it is the newest version of IP that will (for ...
0
votes
1answer
286 views

Deny ping response in ipv6

I would like to know how to deny ping replies on my ipv6 address. We have been messing around with ping flooding on ipv6 at work, and the usual way to block icmp requests does not work. I have tried ...
1
vote
4answers
118 views

IPv6 and its various incarnations

Is there a way already in place to make use of IPv6 as a routable protocol? Is it possible to buy private IP addresses for IPv6 yet and if so who sells them? Would there be any performance advantage ...
1
vote
1answer
4k views

How to force java to use ipv4 instead ipv6?

java in my browser no longer working, when I open a page that has a java element, java can not connect to the server, after I investigate it, obviously java was trying to use ipv6 java, while my ...
1
vote
1answer
141 views

linux route command not working

I use route command to add new route in my routing table. But it my new root is not added. Also it doesn't show any error for my command. Here is the console #route add ::/0 via fe::2 route: ...
0
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2answers
123 views

Dynamic allocation of IPv6 site local addresses

I am interested in hosting multiple services on a single host. Each service (which will all be HTTP for the sake of example) currently uses a private IPv4 address and different ports (e.g. there ...
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0answers
304 views

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 ...
0
votes
1answer
397 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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0answers
35 views

IPv6 for Windows 7 - File Sharing with mac

I'm trying to enable IPv6 after disabling it so i can change my password for my homegroup. I've checked the box next to the IPv6 in local area connections but yet its still saying i need to enable it ...
6
votes
1answer
6k 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 ...
4
votes
1answer
662 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 ...
1
vote
1answer
1k 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? ...
2
votes
1answer
304 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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vote
0answers
714 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 ...
0
votes
1answer
192 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 ...
3
votes
2answers
701 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 ...
0
votes
0answers
207 views

Diagnosing lost IPv6 access

Briefly this morning, both ipv6-test.com and test-ipv6.com were working. The IPv6 setting on my Netgear WNDR3700 is set to Auto Detect, which selected 6to4 Tunnel. After rebooting my PC this ...
12
votes
2answers
2k 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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vote
1answer
224 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, ...
5
votes
4answers
21k 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 ...
0
votes
1answer
608 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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vote
0answers
322 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 ...
1
vote
2answers
333 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 ...
6
votes
3answers
7k views

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 ...