Version 6 of the internet protocol, which will replace version 4.

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lxc container not resolvable with IPv6

I set up a container on Ubuntu 14.04 trusty. The container also uses Ubuntu 14.04 trusty as template. The network is set up as bridged. My network interface from the hosts (eth0) is bound to the ...
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1answer
28 views

Setup static ipv6 address in /etc/network/interfaces

After changing to a new ISP last week I got a new IPV6 address at home. The IPV6 address is global so not just for my home connection. Because of this address my mail server isn't working properly ...
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10 views

configuring 6to4 on ubuntu 15.04

I need to use IPv6 address. So I configured 6to4 tunnel as it described here: http://ipv4.6to4.ru/howto/debian/. But when I try to ping something I get this: $ ping6 ipv6.google.com PING ...
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1answer
20 views

IPv6 not working with Static IPv4 address

Despite interfaces getting IPv6 autoconfiguration addresses with iface ethX inet static in /etc/network/interfaces, IPv6 routing does not work.
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1answer
55 views

Disable ipv6 in ubuntu 14.04

I found that post How to disable IPv6 on Ubuntu? but i couldn't comment because i need to have 50 reputation I need to ask about this file /etc/default/bind9 ,I couldn't find this file How can i ...
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47 views

How can it bind port with ip address not 0.0.0.0?

I'm new to ubuntu also in networking so if you need more details i can provide you with it I binded port number 7700 , I got error in binding it like error in binding 0.0.0.0/0.0.0.0:7700 I read ...
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33 views

How do I enable privacy extensions with an IPv6 tunnel broker?

I'm using Hurricane Electric's 6in4 tunnel broker to create an IPv6 tunnel interface on my Ubuntu 15.10 machine. At the moment the relevant part of /etc/network/interfaces looks like this: auto ...
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24 views

Create wifi access point with ipv6 address range

I want to create WiFi Hotspot to connect android devices to it in ubuntu 12.04 with internet connectivity also I want to use ipv6 addresses for the same. what can be solution to achieve this?
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86 views

OpenVPN, IPv6 and DNS Leaks in Ubuntu 14.04

I have been trying to set up a secure connection using OpenVPN but I've been running into some issues with DNS leaks. Basically, I have no problems getting the VPN service up and running using ...
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2answers
60 views

How to enable IPV6 packet capturing in WireShark at the same time as IPV4?

I am running Ubuntu 15.10 with GNOME 3.18, and for some debugging work need to capture IPV6 packets going to and from a specific port, however I understand that by default IPV6 packets are not ...
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32 views

LXC without NAT

I have an LXC Container that I want to be "directly" connected to the Internet, not as a NAT. I have an IPv6 RA agent that would assign it an IPv6 address and/or DHCPv4 for a regular 192.168.1.0/24 ...
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22 views

LXC to use IPv6 from HE tunnelbroker

I installed lxc on Ubuntu 14.04 64 bit. All work well. The containers can access internet via the default lxcbr0. Now I get a /64 and a /48 from Hurricane Electric Tunnel Broker ...
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31 views

Update fails when ipv6-tunnel is active

I have an ipv6 tunnel (hurricane electric) to experiment with ipv6. Unfortunately, when the tunnel is active, I can't update my server, where the tunnel is running. Bringing the tunnel down enables ...
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0answers
23 views

IPV6 routing packets from eth0 to another interface

I have a device with an Ethernet connection and a wireless connection. I have an apache server on the device and a wireless stack that communicates with ipv6 wireless devices My wireless stack uses ...
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1answer
281 views

My miredo client don't work after upgrading to 15.10

I have used miredo in 15.04 ,and it works very well.But after I upgrad my Ubuntu to 15.10 yesterday,it doesn't work any more.Here is some information. $ ifconfig teredo teredo Link encap:UNSPEC ...
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27 views

Can't automatically start ipv6 forwarding

I have a PC that only has 1 NIC. I created two vlan's to make a router, my switch "distributes" these vlan's. On ipv4 everything works fine. To have ipv6 forwarding I need to do sysctl ...
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61 views

I cannot connect to google and facebook through ipv6

max@min:~$ ping6 ipv6.google.com PING ipv6.google.com(hkg08s13-in-x0e.1e100.net) 56 data bytes 64 bytes from hkg08s13-in-x0e.1e100.net: icmp_seq=1 ttl=51 time=75.5 ms 64 bytes from ...
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108 views

How should I configure DNSMASQ for an IPv6 environment?

Id like to deliver IPv6 addresses (thats easy) and resolve DNS requests for Internet and local IPv6 clients (that's difficult), but I'm missing a comprehensive guide how to do this with DNSMASQ. There ...
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0answers
11 views

Is routing and maquaridng with virtual intfaces possible?

I'd like to connect two subnets by an Ubuntu server, but the machine has only one Ethernet adapter. The server should provide DHCP and DNS cache for the internal network by DNSMASQ. I'm not able to ...
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58 views

problem with multiple global ipv6 adresses

(first sorry for my bad english) as I don't get any answers from the ubuntu forum about my problem I go post here. I don't work at the moment with any linux host, I only use VM(debians and ubuntus). ...
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0answers
101 views

ipv6 global address missing after link flap

in linux/ubuntu after the link flap on an interface the global ipv6 address is flushed out & not seen in ifconfig. Any kernel patch/sysctl to retain the ipv6 address configured after the ...
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1answer
82 views

Ubuntu router returns ICMP administratively prohibited for all IPv6

I am using an Ubuntu 14.04 machine, named ubu1404-150805-3, as a dual-stacked (IPv4 and IPv6) router. I have a client machine, named ubu1404-150805-2, that is also Ubuntu 14.04 and whose only network ...
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1answer
90 views

Disable IPv6 on 14.04 with IPv6 disabled kernel

How do i disable system wide IPv6 within ubuntu? I know so many answers in here about this but situation is different. This is an embedded device. Here is my conditions: IPv6 disabled in kernel to ...
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1answer
80 views

configuring dhcp with dynaminc ipv4 and ipv6 address

i just want to know that is that possible to configure dynamic ipv4 and ipv6 address on eth1. i tried ipv4 is working but ipv6 doesn't. if yes then how. If not then what should i do. Because i want ...
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37 views

I can't use use ipv6 - when it's on the adapter sends deauth packets - please help me fix it

The internet works fine when I don't enable ipv6, but when it's on I get deauthentication packets in dmesg outputs: root@grepsly:/home/isme# dmesg -T |grep deauth [Mon Aug 31 23:18:24 2015] wlan0: ...
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2answers
151 views

Disable IPv4 mapped IPv6

I run a service on IPv4, but sometimes, apparently randomly, it happens that the service uses TCPv6 sockets (I monitor it with ss -s). I want to avoid it, disabling any IPv6 connection. I tried to ...
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1answer
225 views

IPv6 SLAAC (ICMPv6 Router Advertisments) are ignored by wlan1 interface

I installed 15.04 on my Thinkpad W520. However, I'm not able to get IPv6 working on wlan1 interface: ifconfig wlan1 wlan1 Link encap:Ethernet HWaddr 8c:70:5a:d2:65:bc inet ...
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34 views

IPv6 auto configuration broken

Ubuntu wily (but i think this behaviour started with vivid). I get an IPv6 address via autoconfiguration but not default gateway. net.ipv6.conf.all.accept_ra = 1 is set Any ideas?
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203 views

How to configure dynamic DNS for IPv6 using bind and isc-dhcp-server

I have a ubuntu 14.04 LTS machine created in VirtualBox which I could configure IPv4 delegation via isc-dhcp-server. Then by follow this great tutorial, I could configure such machine to also update ...
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2answers
376 views

It is impossible to bring down tun interface

I cannot either bring down or delete a tun interface which is added on startup. Here's the output when I type ifconfig: eth0 Link encap:Ethernet HWaddr 50:b7:c3:92:38:e2 UP ...
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23 views

How to disable “return routability procedure” in mip6d?

I am using mip6d on ubuntu 12.04 with kernel 3.8.2. When I change the IP address (CoA) of Mobile Node, the Mobile Node before sending a update message to CN, sends Care of Test init and wait for CN's ...
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41 views

ipv6 ssh connection with nautilus (rsp. nemo)

I want to establish an ssh connection to a server with an ipv6 adress via nautilus, nemo, or any equivalent gui file browser. the ssh connection via terminal works just fine. However as soon as I ...
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1answer
1k views

Ipv6 - Connect : Network is unreachable

I've just created a virtual Ubuntu machine in VMWare Player but ipv6 is not working. When I try to ping Google with ping6 www.google.be I get connect: Network is unreachable When I use ...
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41 views

ping6 works but telnet does not work on Mobile IPv6

I am using mip6d in ubuntu 15.04. I did all steps as mentioned here with kernel 4.0.5. Everything (Mobile Node, Home Agent, Corresponding Node) works perfectly. When mobile node is in foreign ...
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1answer
52 views

Can I use IPv6 connectivity through openVPN if my router does not support it?

Can I use IPv6 connectivity through openVPN if my router and my ISP does not support it but my openVPN server does?
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1answer
249 views

Ubuntu is sending IPv6 packets with hop limit 0

I have had a working IPv6 Network (provided by a HE-Tunnelbroker) for a while. Everything still works perfectly fine on my Android phone. But since the update to Ubuntu 15.04 my IPv6 connectivity ...
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158 views

I can't access any ipv6 sites on ubuntu 14.04 but on ubuntu 15.04, I can access them normally

I reinstalled my desktop from ubuntu 15.04 to 14.04, and found that any ipv6 sites couldn't be accessed, when I run command ifconfig, I get: eth0 Link encap:Ethernet HWaddr f8:b1:56:ae:41:8a ...
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90 views

IPv6 Tunnel behind NAT

I have a Ubuntu VPS with several IPv6 addresses as well as a IPv4 address. I am travelling often, so I want to set up a tunnel to my VPS which can be initiated from a laptop behind a NAT, which will ...
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1answer
4k views

apt-get update stuck: Connecting to security.ubuntu.com

When I run apt-get update on my machine it gets stuck at: 100% [Connecting to security.ubuntu.com (2001:67c:1562::15)] [Connecting to archive.canonical.com (2001:67c:1360:8c01::16)] I have made no ...
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700 views

How do I add an additional IPv6 address to /etc/network/interfaces?

this question How do I add an additional IP address to /etc/network/interfaces? mostly asks what i want except that i want to add more IPv6 addresses in the same interface eth0 without incrementing to ...
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198 views

how do I configure dhclient for comcast /64 prefix?

I did have everything working, but when I updated my router to a supported version of ubuntu, it broke (Ubuntu 14.4) Where things go wrong is dhclient never grabs a /64. It either gabs the IP for ...
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1answer
52 views

how to turn off ipv6 at startup from console

I am a old-fashioned debian user. And I an shocked to see what canonical made out of debian. I tryed to edit /etc/sysctl.conf and add net.ipv6.conf.all.disable_ipv6 = 1 ...
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1answer
241 views

IPV6 Still resists

I've got a problem in disabling IPV6 under Ubuntu 14.04 I still have UDP6 port opened even I invalidate IPV6... Has anybody a solution? $ sudo netstat -lntup Connexions Internet actives (servers ...
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2answers
190 views

Questions about building a native IPv6 router/firewall

My ISP has kindly handed me a /64 prefix, and I'm building an Ubuntu router, as most of my existing equipment is too old to support IPv6. Using various articles, I've managed to get it mostly ...
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1answer
165 views

Setting up ipv6

My ISP (Charter) offers a 6RD relay to IPv6. I'd like to configure Ubuntu to use that address. Most of the links I am finding are how to disable IPv6. So I'm not sure how to get it working. I found a ...
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100 views

Initramfs suddenly speaks IPv6 but no SSH login

I have been running a configuration with an encrypted root partition and network unlock via Dropbear in initramfs for some time on my Utopic Xubuntu Mediacenter. Since I am actively using IPv6 to ...
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1answer
281 views

why does not IPv6 (RFC 4941) privacy work?

I've followed instructions on https://docs.menandmice.com/pages/viewpage.action?pageId=6361024 It simply does not work, I have no Ipv6 starting with 2001::: , only the same as before. ...
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1answer
133 views

How to setup multiple ipv6 addresses with dyndns in xubuntu?

How to add extra 5 ipv6 addresses to my xubuntu and register them with dyndns? My xubuntu 14.10 have automatically configured ipv4 and ipv6 addresses: sam@minisrv1:~$ ip -6 addr show eth0 2: eth0: ...
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1answer
56 views

Where do I put a dyndns script for IPv6?

I am using: /sbin/ip -6 addr|grep -v temporary|grep 'scope global'|grep -oE '([0-9a-f]{0,4}:){1,7}[0-9a-f]{1,4}' to grep my global, non-temporary IPv6 address, that is advertised by my router using ...
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347 views

How would I use ulogd2 on Ubuntu with IPv6?

I am trying to make use of ulogd2 (package ulogd version 2.0.3-1ubuntu2) on my Ubuntu server and I run into the problem that ip6tables fails: $ ip6tables -A INPUT -m limit --limit 5/sec --limit-burst ...