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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Why doesn't curl work using an IPv6 connection?

How come a: curl -v -6 http://badurl.com doesn't work but a: curl -v -6 --head http://badurl.com Perfectly works? MTU isn't the problem (?) since: root@server:~# ping6 -c 10 -s 2000 -M do ...
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1answer
225 views

NAT with IPv6 (Forced by ISP)

My ISP has recently decided that "high bandwidth clients" are now forced to use IPv6. While I can plug my laptop with Win7 directly into the modem and I have access, connecting routers or my ...
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7answers
31k views

Is there any benefit to using IPv6 on my home network?

I know that IPv6 is the future because there is only 4 billion IPv4 address, but on a home network, you are not going to have 4 billion users. So are there any other benefits that would make IPv6 on a ...
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3answers
1k 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: ...
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3answers
972 views

What is IPv6 and why should I care?

What is IPv6 and why should I care? Bonus points for easy instructions for jumping into the bandwagon.
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1answer
157 views

How do I bind to a specific link local IPv6 address other than the default?

I'm not 100% sure I'm using the correct terminology in the title, so if someone knows better than I do please amend it. I'm trying to replicate a malicious script that I've seen in the wild for the ...
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3answers
13k 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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2answers
355 views

IPv6 connection through IPv4 network without internet-connection

I'm working at a project at my university and now the following problem shows up: We got a Server [Server] with a private IPv6 network. Some sensors (temperature, humidity...) are connected through a ...
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233 views

Can't access IPv6 on OS X 10.9 with IPv6 Pass-Throughout Router

Basic Information Router: Netgear R6300v2, connected to wired network(IPv6 supported) Client 1: MacBook Air 2013-mid(OS X 10.9), connected to router wirelessly Client 2: Synology NAS(DSM 4.3, linux ...
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1answer
349 views

Enable ipv6 in XP Mode on Windows 7 host?

Upgraded router to ipv6 capable router, ipv6 tunnel and enabled all home network to ipv6. Everything works perfectly except ipv6 in XP Mode. XP Mode is using Win7 host's wifi adapter directly. After ...
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1answer
66 views

Addressing computers via ipv6 on local network [duplicate]

I'm very confused about how to address a computer on my local network via ipv6. I am writing a server which is meant to support both ipv4 and ipv6. Now I have don an ifconfig and gotten my ipv4 local ...
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1answer
257 views

Mac listening on port 80 for both IPv4 127.0.0.1 and IPv6 ::1 with SSH tunnel, but connection is not possible with IPv4?

I am connecting with openssh to a remote server, running a web server which I need to access as if from the server itself. Therefore I use ssh-tunneling, like this: sudo ssh -L 80:127.0.0.1:7065 ...
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103 views

Slow SCP tranfers over IPv6 VPN IPSec which has IPv4 private subnets

I have 2 hosts connected with IPv6 VPN. I am using IPv4 internal addresses for machines connected internally and use subnets addressed for these in ipv4. When a host wants to scp a 1 Gig file pull ...
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0answers
27 views

SIT tunnel link errors

I've got a SIT tunnel set up on Linux since my ISP uses 6RD to provide IPv6 connectivity. When I check the tunnel interface with ifconfig, it says the following: 6rd Link encap:IPv6-in-IPv4 ...
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1answer
127 views

Setup IPv6 over IPv4 tunnel in VPN

Let me explain my szenario: I have a linux server A. A is reachable in a VPN. So if I am connected to the VPN over Internet I can successfully ping A. Server A is connected to a Router B. Router B ...
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0answers
883 views

How to make FTP Server in Mavericks listen on IPv6 interfaces?

Althought native IPv6 connectivity is not yet possible with my ISP, I can access IPv6 websites via 6to4 tunnel. The Server App in Mac OS X Mavericks comes with FTP features. However it seems to accept ...
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1answer
433 views

disable IPv6 autoconf (MAC-based) IPv6 address without disabling privacy addresses?

Is it possible to configure the Linux kernel to automatically get the RFC4941 temporary (privacy) IPv6 addresses without getting the RFC4862 public (MAC-based) IPv6 address? With the following sysctl ...
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0answers
421 views

Window Server 2012 throttling incoming IPv6 network file sharing operations

Short version IPv4 download from server: fast IPv4 upload to server: fast IPv6 download from server: fast IPv6 upload to server: slow Full version I am copying files from a GBe desktop to a GBe ...
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1answer
144 views

I have IP conflicts and I can't host my server anymore [duplicate]

My father and I have the same IP address on my network. (I found this on cmyip.com) This makes it impossible for me to host servers (for instance minecraft or terraria) and I don't know the solution. ...
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1answer
279 views

radvd won't accept non-/64 subnets

I'm trying to set up radvd on a 6RD configuration (on Linux), where I have a /64 subnet, and I'm trying to use it on two distinct physical networks, so I'm trying to give each of them a /80 subnet. ...
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4answers
3k 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 ...
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1answer
540 views

OpenVPN 4in6 or 4over6 tunnel

My ISP sucks. It gives me an IPv6 Address and an IPv4 one, but IPv4 is down 50% of the time (I can't access any IPv4 Services every 10 minutes)... As I already have an OpenVPN Server set up, I asked ...
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1answer
475 views

How can I see if Windows is getting RADVD advertisements?

I'm troubleshooting my home network setup and am looking for a way to see if windows is receiving radvd advertisements on a certain interface because I believe that my router isn't sending on WLAN. ...
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1answer
187 views

Curl with ipv6 not working by default

I am trying to curl ipv6 adresses, but without success. If i try lets say: curl https://google.com I wait for a timeout and get network unreachable If i force ipv4, everything is fine. ...
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1answer
95 views

Getting Correct IPv6 Address from given prefix

On my windows xp machine, i have this information: IP Address: fcb1:cafe:1:9e33::2 Default Gateway: fcb1:cafe:1:9e33::1 It works fine, and i can ping the gateway. However now there is another ...
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3answers
274 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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1answer
280 views

Is it possible that IPv4 format IP address is really on a (ipv6 format) DNSv6 server?

Is it possible that an IPv4 format IP address is based on a (IPv6 format) DNSv6 server? How would I determine this?
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2answers
86 views

How do I tell if my Macbook supports IPv6?

I want to know whether my Macbook can handle IPv6. How do I find that out?
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0answers
62 views

My mac doesn't get an ipv6 address from my school's DHCP server automatically

My college does offer ipv6 service, and my mac has no trouble to use it before yesterday. While now I am unable to get an ipv6 address from the server, my roommates's computers work just fine. I have ...
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1answer
412 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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421 views

How to set up a IPv6 to IPv4 gateway for VPS [closed]

Condition IPv6 and IPv4 enabled VPS IPv6 and IPv4 enabled Client(Could be PC or Mac) Problem Client get restricted IPv4 connection whereas IPv6 connection is unlimited. Solution Client connects ...
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1answer
658 views

Can't access my shared folder by ipv4, only ipv6 and name

How to make possible to access to shared folder on win7 machine by ipv4? as my linux machine needs it. The problem is in fact that i can't access by ipv4 to this folder even from this win7 computer, ...
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0answers
31 views

Set an ipv6-specific MTU

I have a router which has ipv6 connectivity through a tunneling mechanism. The router announces a prefix in the LAN, and clients get native ipv6 connectivity on their point of view. The MTU of the LAN ...
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1answer
17k views

How to force Java to use IPv4 instead IPv6?

My Java browser plug-in is no longer working. When I open a page that has a Java element, Java cannot connect to the server. After investigation, I found that Java was trying to use IPv6, while my ...
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2answers
3k 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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3answers
8k views

How to connect a website has only IPv6 address without domain name?

If a server has only IPv6 address without domain name, how can I connect to server from my web-browser?
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3answers
1k views

Should I use a static IP address? If so what kind?

Last night I managed to get my local PC running as a server using port 80 and my IP address. After restarting my machine it stopped working. I was told I need to make a static IP address. My ...
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1answer
305 views

I get an IPv6 address from my ISP but can't use any IPv6 services

When I enable DHCPv6 with Prefix Delegation on my router, it gets an IPv6 address from my ISP (TWC) in this block, and my PC will get one automatically as well. When I try an IPv6 test site it fails ...
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1answer
230 views

Use IPv6 temporary address only with remote peers

I think this question concerns the interaction between the configurable Default Address Selection algorithm defined by RFC-3484 and the temporary addresses defined by RFC-4941, though the solution may ...
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1answer
295 views

Some sites extremely slow! How to determine if its IPv6? and disable it?

My internet is extremely slow on some sites, the famous ones. Google, Facebook, etc. But then, the very next minute, they are superfast. I got to know from somewhere that this is due to clogging and ...
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2answers
22k views

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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1answer
1k views

How do I install the Microsoft 6to4 Adapter?

I'm unable to see the 6to4/Teredo adapter anywhere in my Windows 7 installation. In my Device Manager, the only network adapters are my wireless Realtek card, and "TAP-Win32 Adapter OAS" which is for ...
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1answer
73 views

Is there any way to serve http from behind a typical home NAT/router (from inside a LAN)

I seem to remember reading that something in IPv6 could help with this. I thought I would ask here to see if per-to-peer http could be a possibility these days. I am familiar with hole-punching, but I ...
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1answer
149 views

What prevents my ISP from assigning me a dynamic IPv4 address and static IPv6 address(es)? [closed]

Till now I never heard of an Internet Service Provider anywhere on the world, that assigns static IPv6 addresses besides the one dynamic IPv4 address, to private customers. Is there a technical ...
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1answer
99 views

In tspc ipv6 tunnelling, does tunnel broker required for ipv4 to ipv4 communication?

I am new in embedded systems and trying to add support the ipv6 network availability in my new product but I have understood that, First of all, My system is connected to IPv4 ISP and I want to ...
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1answer
1k views

Cannot get an IPv6 address on Debian

I am using Debian 7 with the newest updates. I have a block of IPv6 adresses from my provider and, according to the provider the DHCP server is setup so that I should get an ip automatically (I even ...
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4answers
8k 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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0answers
153 views

::1 vs 127.0.0.1 for iis local sites

I have a local site which is running at admin.mysite.com. I have set up the iis config to point to the correct folder. When i enter the following entry in my hosts folder 127.0.0.1 admin.mysite.com ...
2
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1answer
2k views

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 ...
4
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1answer
205 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 ...