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 set up OpenWrt traffic rule for port forwarding IPv6 server on my LAN?

I would like to allow inbound IPv6 traffic on ports 80/443 for a globally routable web server on my home network. What's the best way to do this with OpenWrt, which by default blocks incoming IPv6 ...
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0answers
23 views

Is this Microsoft service I found safe to use and/or will it ruin user's privacy?

I was trying to find a IPv6 tunnel after a site needed it, and was about to change the default Teredo config when I realized it was set to Microsoft's servers. I later ran netsh int teredo set state ...
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0answers
15 views

How-to make website accessible over IPv6 using hostname

IPs / Hostnames / URLs are faked of course I have a webserver running. The server is reachable over IPv6 by specifying the IP address in the browser on port 80 I configured an AAAA dns record: ...
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1answer
14 views

Why does my Ubuntu IPv6 ssh server not work?

I am failing to set up my Ubuntu Server (16.04 LTS) with OpenSSH via IPv6. The server is running inside a VirtualBox Machine, which has its network interface set to "network bridge" (if that is the ...
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1answer
47 views

Disable IPv6 with OpenWRT

When I use stock Linksys firmware on my router, my networked devices properly use IPv4 only to access the Internet. When I use OpenWRT 15.05.1, the devices try to connect to various sites using IPv6 ...
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1answer
20 views

Setting up Static IPv4 and IPv6

This question is for an internal home network. I purchased a new PC and installed Windows 10. By default, both TCP v4 and v6 are enabled, and run in DHCP mode. I am familiar with configuring the ...
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1answer
42 views

How to route IPv6 traffic on Windows through Linux TOR gateway?

I have a Debian VM set up running TOR to use as a gateway to connect other machines to to anonymize their traffic. The torrc file on the VM is configured like this: Log notice file /var/log/tor/...
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3answers
542 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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1answer
22 views

How do I disable CGN (LSN) so I can host a server?

I have figured out that inbound packets do not reach my home network due to an apparent existence of CGN. This fully inhibits my ability to host a server. I have set up everything correctly; port ...
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0answers
47 views

Computers can't access each other when both of them connect to Apple NAT64 hotspot

We have an iOS App on App Store. To submit a new version after Jun 1st, 2016, we have to support an “IPv6-only network” according to this link. We referred to Apple's documentation, upgraded a Mac ...
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3answers
1k views

Firefox sporadically loses ability to perform DNS lookups

I've scoured the web for several days now, essentially every single time I encounter this. I hope someone here knows a solution to this. Facts I'm using the latest stable release of Firefox at the ...
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2answers
50 views

Home network: configure for IPv6

I want to configure my home network to be able to access the Internet via IPv6, because I want to learn what it takes, and I want to be a part of reducing demand (eventually) for IPv4 addresses. My ...
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0answers
13 views

ipv6 ping failure from AP end [duplicate]

AP configuration setting: br-lan Link encap:Ethernet HWaddr 04:F0:21:1E:CB:BC inet addr:192.168.0.249 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::6f0:21ff:fe1e:...
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1answer
45 views

Configuring Windows 10 to prefer IPV6

I would like for Windows 10 to attempt connections to IPV6 before V4. Is there a setting I need to change in order to cause this preference?
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0answers
25 views

always failed to ping ipv6 from AP to Sta

I have a AP and Sta connected wirelessly, configured as following: AP: 2001:db8:290c:1291::49/48 Station: 2001:db8:290c:1291::48/48 when I do ping from AP to Station, it always show PING 2001:...
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0answers
23 views

NTP does not sync over IPv6

I deployed an NTP server on Debian 8.5 with the following hosts: server time1.example.com server time2.example.com --- server time5.example.com time5 is an ipv6-only host. Further down the config, ...
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1answer
49 views

Does Skype use only Ipv4 or also IPv6?

A simple question. Does Skype use IP version 6? If yes, how can i set it to use this type of addresses? Are there other VOIP application using IP version 6 (like VIBER or Whatsapp)? Thanks
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1answer
24 views

Windows 10 no IPv6 RA after suspend

I have noticed that a Windows 10 client sometimes does not get an IPv6 address on my network. Looking in to this I have discovered it is limited to resume after suspend. Running wireshark on the ...
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1answer
5k 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
32 views

Do you have to care about ipv6 for security?

I currently have 2 IP : one ipv4 and one ipv6 meaning that both protocols can be used. I'm wondering whether it is dangerous from a security standpoint : If I make a set of rules for iptables (v4) ...
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0answers
496 views

disable IPV6 on specific interface with redhat on vmware

I tried to disable IPv6 on specific interface using IPV6INIT=no on the interface script. its working great on all server accept ones that run on Vmware. any idea? im using redhat 5.2, on vmware ESX
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RADVD for IPv6 assignement, DNSMasq for DHCP handing out DNS for IPv6 clients - how to do?

As you know, Windows does not support setting up DNS via Router Advertisements (RDNSS) for IPv6. So it should use a DHCPv6 server to somehow get the needed address. I'm using DD-WRT on my router ...
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1answer
34 views

Is there ipv6-only dns?

I have a system with ipv6 only connectivity. I'd disable ipv4 altogether, except it's pretty hard to remove, and stome stuff wants to talk to 127.0.0.1. It's a Linux system, running in an LXC ...
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1answer
122 views

How do I configure ipv6 on a LXC configured bridge?

I am trying to figure out how I can add IPv6 to lxcbr0 that LXC creates. The IPv4 could be configured in /etc/default/lxc-net but I find nothing about IPv6. Can this be done? I am running Ubuntu 14.10
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5answers
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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
42 views

IPv6 routing failing

I am trying to setup a lab IPv6 network, and I am proceeding in the following way. I have a device, which needs an IPv6 global address. I have configured my Windows-10 laptop to be an access point ...
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1answer
32 views

OpenWrt DHCPv6 relay bad results for ping

Device: NETGEAR wndr3700v4 OpenWrt Ver: 15.05 Chaos Calmer After setting up DHCPv6 relay with instructions in Wiki, I can get IPv6 address on my laptop and dig can return IPv6 DNS. ping6 ipv6....
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0answers
11 views

Bluetooth Tethering, no IPv4 adresse at interface bnep0

I want to tether my mobile internet from my smartphone (OnePlus One, Android) to my Laptop (Debian 8). I want achieve this without using external tools. At the arch wiki page (https://wiki.archlinux....
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1answer
88 views

Why is my IPv6 Address showing instead of my IPv4?

I am wanting to host a server, and I would like people to join through my IPv4 Address, but when I use ipconfig in the Command Prompt, I only get my IPv4 Address, and when I google "What is my IP" I ...
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4answers
135k views

Windows Update doesn't work and consumes 100% of CPU (Win7 SP1) [duplicate]

I've observed a strange behaviour with Windows Update (Win7 SP1). The process svchost is consuming an entire core of my Virtual Machine (VirtualBox) doing nothing (i.e., there is no network traffic ...
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2answers
3k views

Get IPv6 correctly through another router

My ISP is Unitymedia NRW, Germany. It it a cable (like TV) ISP which has given me a Technicolor TC7200 modem/router. The ISP uses DS-Lite, so I only have a public IPv6 address, and no IPv4 address. ...
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0answers
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Ethernet adapter/router stopped generating/assigning global IPv6

My ISP provides dynamic IPv6 addresses which i use in conjunction with a DNS update script and a domain to access my computers from anywhere, but for some reason my ethernet network adapter or router ...
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1answer
30 views

IPv6 name resolution fails

My internet connection is provided by my university Case 1 My University -> Laptop direct connection Everything works fine here Case 2 My University -> Netgear WNR614 with DHCP -> Laptop IPv4 ...
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0answers
40 views

How do I use mDNS for ssh -6?

Hello I have the following setup: Ubuntu 14.04 LTS Laptop A lot of Raspberry-Pi Model 2 with WLAN The complete setup is based on 802.11 WLAN AD-HOC mode. None of the Pis nor the Laptop uses any ...
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38 views

Cannot connect via IPv4 to a server using a dual stack modem

I have an XFinity cable modem that is "dual stack". The admin for the modem shows both IPv4 and IPv6 "WAN addresses", meaning the public address. However, when ifconfig is done it shows only the IPv6 ...
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1answer
42 views

Force modem to return IPv4 address

I recently got a new cable modem and when I reset the IP it gave me an IPv6 IP address. This is a problem because it is a hassle to type in this long string of hexadecimal numbers and also PuTTY does ...
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2answers
60 views

Why do I have an IPv4 and IPv6 address at the same time?

I was tampering with my LAN and noticed that some servers see my external network address as an IPv6 while others as an IPv4. Why?
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1answer
75 views

I can access my website using my IPv4 address but not my IPv6 address. Why?

I exposed my personal web server to the outside world by opening port 80 for incoming on my firewalls and doing the proper port forwarding. Then I went to whatismyipaddress.com to get my outside IP ...
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1answer
1k 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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vote
1answer
29 views

why does ipv6 coexist with ipv4 slow the load?

My laptop have two network adapter:one is wired lan, while the other is wireless lan. Now I connect ipv6 using wired lan and ipv4 using wireless. The web page seems to get something wrong. It load ...
0
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1answer
38 views

Can Windows 7 acquire DNS from IPv6-Router-Advertisement?

I am playing around with IPv6. Usually, Router Advertisements transmit the prefix and gateway for SLAAC. Since DNS is quite essential, since 2010 RA should also be (optionally) able to transmit the ...
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0answers
49 views

Uncheck IPv6 Checkbox (Unbind) for a Specific Network Adapter on Windows 7 with PowerShell

To preface this, I'd just like to say I have spent a great many days considering the great evils of this request. Nevertheless, I must press on. Unfortunately, on Windows 7, the NetAdapter module is ...
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3answers
1k views

PTR record and A record should match. What if there is no A record?

If I understand RFC1912 section 2.1 correctly, these rules apply for PTR records: 1) Every working IP should have a PTR record 2) PTR and A records should match (although this is not checked usually)...
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4answers
2k views

How to whitelist an IPv6 address in VPC security groups on AWS?

I cannot enter an IPv6 address in the inbound rules in AWS VPC security group settings. It says The source must be a valid CIDR (e.g. 0.0.0.0/0) or the ID of another security group and It wont let ...
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0answers
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How to configure dnsmasq to send DNS server Info via DHCPv6

There is a known problem with a IPv6 Windows Client that it does not accept the DNS Server Info sent by Server via Router Advertisements, even though the IPv6 address assignment works. DNS Server ...
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0answers
114 views

ip6tables with K26 std-nokaid-small firmware for my WNR2000 version 1 router?

I am looking at the K26 std-nokaid-small firmware for my WNR2000 (v1) router. It is supposed to support IPv6, but is ip6tables (or other IPv6 compatible firewall) included in the image? dd-wrt.v24-...
0
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1answer
103 views

Ubuntu as a IPv6 router not taking default route from upstream RA

I've got an Ubuntu 14.04 box that acts as my home router. I've got an IPv6 /64 delegated by my ISP, and I'm using RA and the WIDE DHCPv6 client to configure IPv6. Everything works well, except no ...
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0answers
25 views

IPv6 tunnel interface

I don't know its valid question or not.My question is i have eth0 interface with public IPv4 address and i already created 6to4 tunnel for ipv6.So my question is when i am trying to access a ipv6 host ...
0
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1answer
48 views

IPv6 conflict on same network

My requirement is, i am trying create a graphical user interface for my embedded system for ipv6.So i have option for setting manual IPv6 address.My requirement is when i enter manual IPV6 address,i ...
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2answers
769 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 ...