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

learn more… | top users | synonyms

1
vote
1answer
22 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?
1
vote
1answer
26 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 ...
-2
votes
0answers
21 views

Output of the Show ipv6 dhcp interface [closed]

I successfully configured the DHCPv6 server. My CPE is also receiving the prefixes. However, I am not to figure out some of the terms in the output of the command "show ipv6 dhcp interface". I tried ...
0
votes
0answers
38 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 ...
1
vote
0answers
36 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 ...
2
votes
1answer
315 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 ...
1
vote
1answer
85 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 ...
1
vote
0answers
99 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 ...
0
votes
1answer
38 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 ...
-1
votes
1answer
96 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 ...
1
vote
2answers
68 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 ...
0
votes
1answer
95 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 ...
1
vote
0answers
62 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 ...
0
votes
1answer
95 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. ...
2
votes
1answer
67 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: ...
2
votes
0answers
38 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 ...
0
votes
1answer
140 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 ...
0
votes
1answer
1k views

How to configure /etc/network/interface to use static IPv6, but dynamic IPv4?

I want to add a static IPv6 IP to my otherwise automatic IP configuration. How to do this? Currently I use: auto lo iface lo inet loopback auto eth0 So IPv4 is configured by DHCP, IPv6 is ...
0
votes
0answers
84 views

have access to ipv6.google.com but not other ipv6 address

Briefly speaking, I have access to http://ipv6.google.com or some other ipv6 website. The ipv6 test website http://ipv6-test.com/ also says that I have both ipv4 and ipv6 connections. The strange ...
1
vote
0answers
34 views

Can connections to ::1 be made reliable in Chromium?

I just ran into this message from Chromium: The server at [::1] can't be found, because the DNS lookup failed. I was trying to access http://[::1]/, which usually works. This is on an Ubuntu ...
0
votes
0answers
67 views

Wrong IPv6 Routing

My Ubuntu 12.04.5 LTS servers have all the same problem. When I access a website which has IPv6, everything works fine and the website shows up. When I access a website which has no IPv6, it always ...
0
votes
1answer
202 views

Ubuntu 14.04.1 DNS issues

For some reason DNS is flat out not working on our new OpenStack Cluster. For example, just installed a new Ubuntu 14.04.1 OS (Ignore OpenStack, this is really just a blank single physical server at ...
0
votes
0answers
143 views

Always getting 128bit dhcpv6 prefix for stateful dhcpv6 configuration

I am using ubuntu 14.04 as a dhcpv6 server. radvd is configured as interface eth1 { AdvSendAdvert on; AdvManagedFlag on; AdvOtherConfigFlag on; prefix 2001:888:0db8:1::/64 { ...
0
votes
0answers
190 views

IPv6 assign a network on a loopback address

I need some help with IPv6. I have an Ubuntu 12.04 server with multiple IPv4 networks on the loopback. For example: ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu qdisc noqueue state UNKNOWN ...
-1
votes
2answers
302 views

Ping Adress IPV6 [closed]

Please, how to ping between the two machines (have IPV6 addresses)? Thanks a lot.
0
votes
0answers
50 views

IPV6 Gives out multiple subnets

I have no idea what I've done but I'm attempting this: Ubuntu Server 14.10 -> Asus 1900 -> LAN with everybody getting ipv6. eth0 is ISP (Comcast) eth1 is from Ubuntu to Asus Somehow I made it here ...
0
votes
0answers
238 views

Slow boot up of new install of Xubuntu 14.04 LTS on Dell Inspiron 6400

I have recently installed Xubuntu 14.04 LTS on a Dell Inspiron 6400 laptop and now it takes about 20 seconds to boot up. Here is a section of my dmesg output: [ 2.689941] random: init urandom read ...
0
votes
0answers
273 views

How to configure Ubuntu as IPv4 and IPv6 router with shorewall

I have a dual port Ubuntu server 14.04 configured as router for IPv4 with shorewall. It works fine. I now want to support IPv6 but it fails. I installed and configured shorewall6 according to the ...
0
votes
0answers
153 views

Bridged VM guest does not get IPv6 ra prefix from host

I have a similar problem and setup as described in IPv6 does not work over bridge. My host get a IPv6 prefix but the guest VM only gets a local fe80-prefix. Using tcpdump I can see that solicit ...
0
votes
0answers
157 views

How to make IPv6 duplicate address detection (DAD) work on Ubuntu?

I have an Ubuntu host running inet6 dhcp. This is what I configured on the /etc/network/interfaces file: auto eth1 iface eth1 inet6 dhcp up sysctl net.ipv6.conf.eth1.accept_ra=1 pre-down ip ...
1
vote
2answers
915 views

Firefox becomes very slow, showing spinning circle “connecting” for ages, ipv6 is disabled, no proxy, and disabling addons doesn't work

So I am a brand new Ubuntu user, and just getting the feel of the OS. Tried it on a friends computer, and really liked the system. Have just done a full install of 14.04 on an Asus UX32A (originally ...
1
vote
0answers
32 views

Unable to get both RA and DHCP6 address on a particular nic

My host is connected to a network that is connected to Router and DHCP6 server. radvd.conf setting on the router is given below: interface eth1 { AdvSendAdvert on; AdvManagedFlag on; ...
0
votes
1answer
2k views

How to force IPv4 on Ubuntu Desktop 14.04

I've stripped the desktop from my installation as per my last question, but it is not assigning my server an IPv4 address, there is nothing wrong with my configuration, I just need it to give my ...
2
votes
1answer
1k views

IPv6 network is unreachable. until reboot

I've setup IPv6 on my Ubuntu 14.04 server. Everything is working.. until all of a sudden (haven't found the trigger) a ping6 2001:4860:4860::8888 (google nameserver 8.8.8.8) returns network ...
2
votes
0answers
690 views

ipv6 network unreachable

Some strange problem here, I have got an ipv6 address by DHCP, however, ping ipv6.google.com gets network unreachable. Other people in the same house using windows7 has ipv6 working fine. So, there ...
0
votes
2answers
540 views

Trusty IPV6 is disabled, but applications are still binding to IPV6 address ports

I have set sysctl to disable ipv6: vagrant@puppet:~$ cat /etc/sysctl.d/10-ipv6-disable.conf net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = ...
0
votes
1answer
194 views

IPV6 dynamic route from DHCP

IPV6 was configured locally in my network in Ubuntu 12.04, where one of my machine runs the DHCP server and other as client. But the client was not acquiring the route from DHCP. Do we have to give ...
0
votes
1answer
531 views

ipv6 forwarding kills ipv6 connection?

Hi i'm trying to spin up VMs on public ipv6 address's. When I enable net.ipv6.conf.all.forwarding = 1 on the host it seems to kill the ipv6 connectivity root@li166-218:~# ip -6 route show dev eth0 ...
0
votes
1answer
1k views

Assigning additional labeled aliases to a single physical network interface for IPv6 addresses

Currently I am stuck trying to label the interfaces for additional IP addresses I am adding to an interface. Let's say the interface is eth0 ($IFACE), then for $ADDRFAM="inet" I can add an IPv4 ...
1
vote
2answers
2k views

IPv6 does not work over bridge

I installed Ubuntu 14.04 server a week ago. I use it as a virtual machine host (tasksel installed). meaning am running it with kvm + libvirt. I have set up the same bridge I had in 13.10. auto p4p1 ...
1
vote
3answers
2k views

Slow DNS lookup after upgrading to 14.04

After upgrading my Kubuntu to 14.04 from 12.04, I got extremely slow DNS lookup in Firefox and Thunderbird. I have checked the communications with Wireshark. Launching e.g. http://vs.hu in Firefox ...
5
votes
0answers
2k views

How to use “docker.io” containers in Ubuntu 14.04 with IPv6? [closed]

I'm trying this: At the physical host with Ubuntu 14.04 (container's gateway for both IPv6 and IPv4), I tried: root@docker-srv-1:~# ip -6 a a 2804:XXX:4:acbd::1/64 dev docker0 Of course, host ...
1
vote
1answer
201 views

Does nmbd binds on a IPv6-Only network?

After moving my Samba to a IPv6-Only environment, nmbd doesn't start up anymore... I tried this: interfaces = 2001:db8:1:1::/64 and with this: bind interfaces only = yes... But, nmbd doesn't ...
1
vote
1answer
57 views

How is information passed between ipconfig and the init process at boot time

I'm trying to assign an IPv6 address to my machine at early boot time (in order to boot a diskless system over IPv6) with ip -6 addr add $ipv6/108 dev eth0 at nfs-premount. This works fine, but as ...
23
votes
1answer
52k views

How to disable IPv6 in Ubuntu 14.04?

I am using Ubuntu 14.04. And I have done the following to disable ipv6. I have open /etc/sysctl.conf using gedit and paste the following lines at the end of sysctl.conf. ...
3
votes
1answer
6k views

How to disable IPv6 when connecting to an OpenVPN server using Network Manager on a dual-stack system?

I'm using the OpenVPN client through the OpenVPN Network Manager plugin on a dual stack (meaning configured both for IPv4 and IPv6 connectivity) Ubuntu 13.10 to redirect all traffic through the VPN ...
1
vote
1answer
478 views

Set primary IPv6 address

I've got a /64 of IPv6 addresses available to one of my servers (Ubuntu 12.04). I'm binding them like this: auto eth0 iface eth0 inet static address xxx.xxx.xxx.82 netmask 255.255.255.248 ...
17
votes
1answer
618 views

Diskless Boot with IPv6

At our work we are using around 80 diskless machines running Ubuntu. We want to make the transition to IPv6, so now I'm trying to get our diskless system to work with IPV6. The transmission of the ...
8
votes
3answers
4k views

How to make Ubuntu honor “ignore-hosts” proxy settings for IPv6?

I just typed under "dconf-editor", System → Proxy → ignore-hosts, the following content: ['localhost', '127.0.0.0/8', '::1', '192.168.0.1', '2000::/3', 'fc00::/8'] But, Google Chrome (and apt-get ...
0
votes
1answer
336 views

sudo apt-get update/ failed to update [duplicate]

I just installed Ubuntu 13.10 saucy salamander. When I try sudo apt-get update and I get the response Err http://extras.ubuntu.com saucy InRelease Err http://archive.canonical.com saucy ...