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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Unable to connect to WiFi via NetworkManager sometimes(!)

I have an issue which occurs only in Arch + Xfce + NetworkManager. It doesn't occur in Arch + Gnome + NetworkManager or in Ubuntu or Arch + Xfce + wicd on my machine if I'm not missing something. ...
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54 views

ssh_exchange_identification: connection closed by remote host - not caused by public keys or DNS

I have been using this ssh-setup for months, but yesterday it stopped working for whatever reason. It would be great if any of you had an idea how to fix it. Setup: MyComputer(Ubuntu) > Machine1 > ...
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5answers
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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: 2001:410:0:39:221:28ff:...
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1answer
28 views

dynamically distribute gateway

Here is picture of very simplified network: Linux is running on all of PCs. PC10 act like router = default gateway for net 1 and net2. Everywhere is IPv6 protocol. All PCs must have static IPv6 ...
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27 views

can connect to ipv6 access point, but not communicate with devices

I am attempting to run a local ipv6 network and have gone through a number of tutorials, but with limited success. I'm running a server on the router/access point and it is the only device I need to ...
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10 views

Limit Windows router advertisement/forwarding to VirtualBox

I enabled IPv6-networking via IPv6-tunnel from Hurricane Electric. The tunnel endpoint is a Windows 10 machine with a public static IPv4 (no NAT! public routable IPv4! No DHCPv4!). I am running a ...
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10 views

Does linux support the update of IPv6 NUD state machine ?

I am studying the rules of IPv6 Neighbor Unreachability Detection. And rfc7048 updates the state machine of NUD. However, I found most of linux releases do not support this update. I want to find ...
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66 views

How does IPv6 affect throughput?

In order to upgrade throughput, somebody advised me to work on IPv6. How does it affect throughput?
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41 views

How to get a network of different IP addresses on IPv6?

Does anyone know if it is possible to get a network of different IP addresses on IPv6 (not sure if they have it in my area?). What I'm thinking is maybe I could have a little network like at work now ...
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52 views

BitTorrent daemon with IPv6 web interface? [closed]

I'm looking for a BitTorrent daemon (for Debian) that has a webinterface which can be accessed via IPv6. Transmission and Deluge come to mind, but both of them seem to lack IPv6 support in the ...
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1answer
44 views

Can't access some websites using IPv6 tunnel from LAN

My router (running Ubuntu Linux) is dual-stack, dual ethernet. The router's WAN interface is configured with IPv4 PPPoE to my ISP. Hurricane Electric gives me an IPv6 tunnel which is working on the ...
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111 views

Use native IPv6 with WRT160NL router and DD-WRT

I currently own a Linksys WRT160NL router with DD-WRT v3.0-r29134 std (02/19/16) installed on it. My ISP (French) is Free, and the modem it provides (the Freebox) supports the IPv6 natively. I can ...
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1answer
146 views

Translating IPv6 packets to IPv4 packets to reach a game server

I am behind a DS-Lite system and therefore have no native IPv4 address. But out of curiosity, I want to find out, if it is possible to set up a game server behind that. More precise, a counter-strike ...
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2answers
175 views

Block (nullroute?) an IPv6 hostname using /etc/hosts

I'm trying to prevent my web browser from communicating with certain hosts (mostly ads and tracking). I have a list of such hosts in my /etc/hosts file. For IPv4 I can do: 255.255.255.255 example....
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1answer
2k views

Why would my router have different MAC addresses for IP and IPv6 transactions?

Today I was using tcpdump and I noticed my computer was having IPv6 traffic with a particular MAC address that I could not match with an IP using nmap or arping. After looking at the tcpdump logs a ...
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1answer
29 views

Reject routes for IPv6Tunnel in Windows 10

I am currently using Hurricane Electric's IPv6-Tunnel for IPv6-connectivity from my office computer (IT staff approved!). Now I realized that HE.net has a peering dispute with Cogent. So all IPv6-...
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1answer
309 views

What's better RADVD or DHCPv6 for local network with IPv6?

today I got a new router and now I want to enable IPv6 on my network. But the thing is I don't know what the better option is since TP-Link gives me two ways to get IPv6 on my network. The first ...
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19 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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59 views

Windows 10 - Homegroup Problems

Just upgraded to Windows 10 and trying to setup a home file sharing network. When I go through the process, I get a message that I must have IPv6 enabled. I'm instructed to run HomeGroup ...
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1answer
892 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
75 views

Would NAT be eliminated transformed in ipv6?

NAT is a wonderful concept used in ipv4. It is the major reason for the existence on internet, in my concerns. There are no networks in the world that doesn't work without employing NAT. All I seek ...
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3answers
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I have both IPv4 and IPv6 public addresses. Why?

For my home network, my public IP address shows through some websites as an IPv4 and others as an IPv6 address. I have read this thread and understand that it is possible for my ISP to have assigned ...
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1answer
40 views

How can I fix my internet connection when “ my computer appears to be correctly configured”

I am new to this website, I don't know if my question is an off topic question, or even if this is the suitable place to ask. Please tell me if I am in the wrong place. Since some days I ma facing ...
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1answer
88 views

Using IPv6 link-local addresses to ping between VMs in internal VirtualBox network

I'd like to test this network configuration in fully virtualized enviroment, while I don't have access to physical lab. I am using 2 VM Guest machines (Guest OS is Archlinux), each configured with ...
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2answers
176 views

Unable to connect to one particular FTP server

I am unable to connect to a particular FTP server at Fasthosts over my usual ISP connection, using any of Filezilla, Notepad++ or WinSCP FTP clients on either my PC or my laptop. However, I CAN ...
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1answer
40 views

Giving each domain unique IPV6 address for posfix SMTP

Today I faced a problem after setting up postfix as my mailserver and sending e-mail to a gmail email, which responded me with the following message: Our system has detected that this ...
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1answer
428 views

Bluetooth 6LoWPAN connection between two Raspberry Pis

I had this question on Stack Overflow, but it was suggested that I migrate over here. It was flagged for moderator attention but I am unsure how that process works and I did not receive any feedback ...
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2answers
101 views

How to bypass simple ISP block?

Background: My ISP (under the influence of our precious government) recently started blocking public web-sites for no particular reason. Problem: My guess is that ISP is using DPI to rule out which ...
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1answer
12 views

Bad connection to Google websites when using Teredo

I need IPv6 connectivity on my computer at work but the ISP does not provide it, so I use Teredo (with Miredo) in order to get an IPv6 address. It works correctly on most websites but on Google ...
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1answer
109 views

Strongswan ipv6 tunnel routing

I'm trying to solve a weird problem in routing. I've got my router set up (Turris, running customized OpenWRT), with Strongswan tunneling ipv6 connection. This works fine for the router itself, as it'...
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1answer
53 views

ping6: How to use the “-b” option

What is the purpose of ping6 -b and how do I make use of it? The man page says Allow pinging a broadcast address. Since there is no broadcast in IPv6, I'm puzzled. I'm using: Host> ping6 -V ping6 ...
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2k views

Internet Connection frequently dropping on Ethernet

My internet connection is frequently dropping on Wired Lan (Ethernet) but the wireless works fine without any problem. It's not an issue of Internet Speed as Internet works fine in Windows. ifconfig ...
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68 views

How to specify IPv6 link-local bind address in smb.conf?

Using samba 4.1.17-Debian I have tried the following smb.conf entries to bind samba to the link-local ipv6 addresses interfaces = fe80::d270:36a5:ac03:37ea%br0 fe80::/10 ::1 bind interfaces only = ...
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24 views

What can be the cause if DNSSEC suddenly stops working and normal resolving is extremely slow viua unbound?

Suddenly, every .com domain failed DNSSEC validation (regardless of it is signed or not), and normal resolving fails randomly with DNSSEC disabled, for example all youtube videos say "A error occured"....
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607 views

Windows 10 is not using my IPv6 address by default

I have IPv6 addresses from sixxs.net but if I ping a host that has both IPv4 and IPv6 addresses (i.e. www.google.com or www.facebook.com) I get the IPv4 address on windows 10 but on all the windows 7 ...
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3answers
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Can't access 127.0.0.1 from Windows 8.1

I have a really strange problem with my Windows 8.1 Pro laptop: I can't access 127.0.0.1 from any web browser. But wait, it gets weirder! The setup My OS has installed (among others) the following ...
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2answers
67 views

Disabling IPv6 capability in my network adapters resolved my extremely slow DNS resolution. Why?

Obviously not everyone has this issue since IPv6 is enabled by default, so why me? I'm using Google's IPv6 servers. Once I unticked the checkbox for IPv6 in my adapters' properties, pages began ...
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7answers
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Is IPv6 'faster' than IPv4?

Are there any practical speed/latency gains from using IPv6, or is it just to make room for more IPs?
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64 views

Adding secondary IPv6 during boot process fails

I am running a Debian Jessie System, stable with latest updates, and I have the problem that the second IPv6 address is not added to the interface when I boot the server. This is my /etc/network/...
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3answers
137 views

How to test if DNS is working over IPv6

My two VPS servers host my DNS. I have it setup to work with both IPv4 and IPv6. I'm able to test IPv4 without a problem. How can I test IPv6? I tried entering the IPv6 address in digwebinterface....
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3answers
156 views

Netstat -an in Command Line

In the below picture, as you see When I write netstat -an inside the command line I got this answer in the picture. The last line is different than others. Sometimes, I query netstat -an command ...
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31 views

IPv6 SLAAC address being added to interface when it shouldn't

I have built a Linux based router for a network testing environment. The machine has 4 physical ethernet ports wan lan0 lan1 lan2 All 3 lan* interfaces are bridged on my lan device. I am running ...
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2answers
63 views

Is possible to route only one /64 ipv6 subnet for LAN?

I have one /64 ipv6 subnet provided from my ISP. At home, I have one router (cisco 2801) with one WAN port (ethernet) and one LAN port (invalid ipv4 network 192.168.22.X) doing NAT. Is possible to use ...
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0answers
32 views

Android phone issue with internet connection via WLAN shared by virtual wifi from my laptop

I try to share my internet connection from my laptop (win7) via virtual wifi to my android phone (Samsung Gio). In an elevated cmd I enter netsh wlan set hostednetwork mode=allow ssid=VWiFi key=xxx ...
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1answer
42 views

ip6tables causing slowness

When running commands like ntpq -p or apt-get update it takes a very long time to display the results. If I remove all the ipv6 rules, everything works fine. I checked syslog, and there's no iptables ...
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How do I remote SSH into an IPv6 address behind a router firewall?

I have this fancy new ubuntu server I just built assembled, and I'm trying to set up ssh from anywhere so I can keep it headless. I've been able to set it up locally, and as long as I'm on the ...
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56 views

Slow ipv6 transfer speed with an ubuntu laptop

ipv6 transfer speeds on my laptop running Kubuntu 15.10 are really slow : less than 1Mb/s whereas it is more than 10 times faster with ipv4. It occurs both with wifi or wired connection. I've tried ...
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1answer
2k views

Why can't Chromium connect to http://[::1]:8080/ (i.e. IPv6 localhost)?

For developing a statically generated website on my laptop running Debian, I use weborf running on IPv6 localhost, port 8080: weborf -i ::1 -p 8080 -b .. I can connect to http://[::1]:8080/ without ...
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2answers
7k 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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3answers
4k views

How do I deploy IPv6 within a LAN using a Debian based router and prefix delegation?

My ISP started using DHCPv6, which means with this /etc/network/interfaces... auto lo eth0 eth1 iface lo inet loopback allow-hotplug eth0 iface eth0 inet static address 192.168.0.1 netmask ...