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

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Ubuntu 12, how to disable IPv6 permanently?

How can we disable IPv6 system wide via terminal commands? I've read editing /etc/modprobe.d/aliases and replacing alias net-pf-10 ipv6 with: alias net-pf-10 off alias ipv6 off is this safe ...
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1answer
28 views

How to delete inet6 Link address automatically?

There is an inet6 addr on the eth0 interface: eth0 Link encap:Ethernet HWaddr 00:0c:29:d9:46:f5 inet6 addr: fe80::20c:29ff:fed9:46f5/64 Scope:Link UP BROADCAST RUNNING ...
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1answer
47 views

IPv6 autoconfig isn't working on 13.04

I have several computers with various operating systems on my LAN, and one of them with Ubuntu 13.04 64 bit, is the only box that can't autoconfigure itself an IPv6 address. rdisc6 times out on it, ...
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39 views

How to enforce IPv6 source address selection with addrlabel at startup?

I have a system with a primary IP address of 2001:DB8:1::1/64. This IP is achieved via stateless auto config and is static for our purposes. This system has a routed IP block of 2001:DB8:2::/64. I ...
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1answer
74 views

No answer section using dig

I've got an assignment from school to setup a DNS server with 2 name servers in ubuntu server using IPv6, but I'm not very good at it. When I use the dig command, It doesn't show an answer section. ...
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18 views

PING6 Between Ubuntu Hosts Gives Unexpected DUP! Replies

Pinging between 2 Ubuntu hosts results in a pattern of 1 normal followed by 3 DUP! responses over and over again. When I ping -6 from Windows 7 only 1 response is given as expected. I am using an IPv6 ...
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1answer
132 views

How do I configure IPv4 connection to use a DNS accessible only over IPv6?

I'm trying to make my system resolve IPv4 addresses over an IPv6 connection because my IPv6 connection is more secure (yes, it really is. Long story). The IPv6 nameserver resolves IPv4 addresses; it ...
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1answer
82 views

IPv6: ping6 from foreign host works, but cannot ping6 on same host

I have a strange issue with ipv6 on Ubuntu 12.04. There are two hosts, directly connected to the internet. Both have assigned a /64 network. They are properly configured with a /128 endpoint each ...
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1answer
175 views

How do I configure ufw to only allow outgoing/established connections for a IPv6 network?

How do I configure ufw to only allow outgoing/established connections for a IPv6 network? I am using an old computer with 12.04 installed to create an IPv6 router for my local network. I would like ...
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111 views

12.04, 12.10: NetworkManager fails to autoconfigure IPv6

Yep, precisely as the subject line says. In LAN in question we've tried Mac OS X, Windows 7, Ubuntu and ArchLinux. Everything except Ubuntu (what a shame!) works flawlessly, i. e. gets an IP(v6). ...
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1answer
357 views

get apt-get stop using ipv6

I'm trying to use apt-get update or any other apt-get command it gives me this error: Hiba történt „2001:db8:dbb:1:1:1:1:221:8049” feloldásakor (-9 - A címcsalád a gépnévhez nem ...
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184 views

Stateless auto configuration IPv6 in ubuntu 12.04

I have installed ubuntu 12.04. i heard that ethernet interface automatically get a link local address but in my ubuntu box it's not getting link local address. Command ifconfig -a output Link ...
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1answer
65 views

a strange issue with ping6 [duplicate]

I have 2 Ubuntu machines one acting as IPv6 wireless router (running hostap and radvd on wlan0) and the other is connected to that router. The router wlan0 interface has the address ...
3
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1answer
250 views

Destination unreachable with ping6 between two local machines

I have 2 Ubuntu machines one acting as IPv6 wireless router (running hostap and radvd on wlan0) and the other is connected to that router. the router wlan0 interface has the address 2001:db8:1:1::1/64 ...
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2answers
178 views

Why am I unable to ping the same interface after configuring an IPv6 address

I setup IPv6 in my Ubuntu 12.04 on eth0 using command ifconfig eth0 inet6 add 2001:db8:fedc:cdef::1/64 but when i try to ping eth0 itself using ping6 2001:db8:fedc:cdef::1 it always gives ...
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1answer
144 views

How to setup IPv6 on ubuntu host with two VMs

I want to setup IPv6 network with two VMs(virtual box) on a ubuntu 12.04 host. One VM is backtrack and second is window XP. I want to know that how can i setup a fully IPv6 network so that i can ...
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2answers
891 views

How to remove the sit0 network interface?

when I type ifconfig -a, there is a sit0, why it is here, and how to delete it? sit0 Link encap:IPv6-in-IPv4 NOARP MTU:1480 Metric:1 RX packets:0 errors:0 dropped:0 ...
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1answer
357 views

Why does IPv6 kill my network in Ubuntu 12.04?

Ok, so I have nice Ubuntu 12.04 headless server running. It's very happy. It's my router/firewall/DNS/etc. eth0 is WAN, eth1 is LAN. I can easily get my IPv6 Hurricane Electric tunnel connected, ...
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1answer
423 views

Dual stack Apache

I have an Ubuntu 12.04 server with a number of IPv4 addresses and a /64 of IPv6 addresses. I have it responding to its IPv6 addresses with ping6. I'd like the domains hosted on the server to go ...
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0answers
18 views

OpenVPN using Ipv6 [duplicate]

Possible Duplicate: OpenVPN with IPv6 Now i'm using ubuntu server 12.10 and. I want to use VPN with OPENVPN ,And I want to using IPv6 but I don't how to configure server.conf in ...
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1answer
196 views

Can I install NetworkManager Version 0.9.6.0 on 12.04?

The NetworkManager Version 0.9.4.0 from Ubuntu 12.04 doesent support fully functional VPN Connections over IPv6. (see Do any NetworkManager VPN plugins support IPv6? ) On Ubuntu 12.10 with ...
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120 views

Firefox and IPvv6

I read that disabling IPv6 speeds up browsing and is recommended from a security perspective. Is this true? IF I disable it, how many sites will I not be able to access? According the Mozillazine, ...
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2answers
895 views

PDFs don't render correctly with Firefox and pdf.js

While using Firefox on Windows, pdf.js worked beautifully. It was honestly amazing. But on (K)ubuntu, it fails to render the files - not just some, but any (which is why I'm posting here). For ...
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1answer
142 views

IPv6 tunnels - any easy way to turn them on and off?

I've set up a tunnelbroker.net (Hurricane Electric) IPv6 tunnel from my laptop running 12.04. Works fine, and allows me to test the dual-stack configuration on my remote webservers etc. until native ...
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1answer
232 views

Squid3 dns resolution error

Squid3 on ubuntu 12.04 returns ipv6 addresses instead of ipv4. I have no ipv6 network therfeore connection fails. DNS resolution directly on the server returns ipv4 addresses.
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ipv6 just wont go away 12.10 server

After very long time using Ubuntu old LTS version I have re-installed to new LTS 12.10, but I can't get rid of ipv6 ! I have did: in /etc/modprobe.d/blacklist.conf: blacklist ipv6 blacklist ...
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1answer
661 views

cannot delete IPv6 default gateway

The commands below should be pretty self-explanatory. Please note that the route for which i get failure is obtained by RA and has very less expiry ( e Flag in UDAe). @vm:~$ ip -6 route ...
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124 views

Thunderbird/Evolution cannot connect Gmail while Postler can!

I tried many possible ways and the instructions given by Google and Mozilla. But my Thunderbird cannot access to my Gmail. I need ipv6 access in order to reach Google. And I have my /etc/hosts full ...
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2answers
1k views

Have to run sudo dhclient eth0 automatically every boot

I just installed ubuntu 12.04.1 alternative install (for raid 0 on some disks). I Have some problems with the net. I'm at school, we use cable, and it got IPv6. If I run ifconfig eth0 heres my ...
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1answer
358 views

How to configure DNSv6 on a LAN without internet access?

I have a LAN of IPv6 enabled hosts. I would like to setup a ubuntu as DNSv6 server for the local LAN addresses (there is no internet/tunneling stuff). I could manually edit the etc/hosts file for ...
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56 views

Is there a IPv6 equivalent to the IPv4 kernel option accept_local?

Since kernel >= 2.6.33 the kernel option "accept_local" can be modified: /proc/sys/net/ipv4/conf/{interfaceID}/ accept_local - BOOLEAN Accept packets with local source addresses. In combination ...
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1answer
163 views

How to do a Port Proxy?

As some software doesn't listen to IPv6 port, we often do a port proxy to solve the problem. For example, the remote desktop in Win2003, we just run netsh interface portproxy add v6tov4 ...
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323 views

no ipv6 connectivity with Hurricane Electric tunnel; firewall issue?

I am trying to set up an ipv6 tunnel through Hurricane Electric. So far, I have no connectivity; ifconfig: he-ipv6 Link encap:IPv6-in-IPv4 inet6 addr: fe80::c0a8:164/128 Scope:Link ...
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0answers
473 views

sysctl no such key error for ipv6 parameters

Recently, I observed that the ssh-ing to my ubuntu (12.04) server had become very, very slow. Typically the login would take 6-7 seconds, and there was a definite lag between me typing my commands and ...
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2answers
470 views

DHCP3-server Don't want IPV6 address

Recently we upgraded from a windows 2003 DHCP server to a Ubuntu 10.04 DHCP3-server. The problem I am faced with now is that my windows 7 clients are now getting IPv6 ip address along with the IPv4 ...
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1answer
2k views

Can't Start ISC DHCP IPv6 Server

Trying to enable the ISC DHCP server for just IPv6 on Ubuntu 12.04 LTS. I have downloaded and installed the DHCP server via the following command: $ sudo apt-get install isc-dhcp-server Then I ...
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2answers
1k views

resolv.conf containing 127.0.0.1

I have just installed Ubuntu 12.04 on a dual-stack network (with managed IPv6 configuration). I would like to verify if the DNS resolver options received from DHCP and DHCPv6 servers are correct. ...
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3answers
305 views

Sharing IPv6 from SixXS to local KVM guests

I have a couple of tunnels and a subnet from SixXS. One tunnel is for my laptop, the other is for my desktop. On my desktop, I run kvm and have a few guests that I really would like to have IPv6 ...
0
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1answer
57 views

IPV6 modules whats really needed?

I've added blacklist ipv6 to my blacklist.conf file to keep the ipv6 module from loading, but there's a lot of other modules related to ipv6 as well that I'd like to know if I can add to the list as ...
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173 views

ubuntu12.04: could ping local ipv6 address

Download the ubuntu12.04 as a VM under windows 8 host, but could not ping the ipv6 address auto configured (link local fe80..) from ubuntu12.04 guest. even for manually configured global ...
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67 views

/etc/network/interfaces “Require IPv6 addressing for this connection to be complete” equivalent

What is the equivalent setting in /etc/network/interfaces of Network Manager's "Require IPv6 addressing for this connection to be complete"?
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2answers
163 views

Is the BCM4306 wireless card ipv6 capable?

I've been trying to connect with ipv6 enabled networks with my Broadcom Wireless card under Ubuntu 12.04. The wireless card model is BCM4306. $lspci $Network controller: Broadcom Corporation BCM4306 ...
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1answer
3k views

Why do I get multiple global IPv6 addresses listed in ifconfig?

This could be a no-brainer, but when I look in ifconfig it lists two different global IPv6 addresses. Is there a reason why I'm getting two assigned? Shouldn't I just get a single address? ...
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1answer
386 views

Internet goes on and off after updating to 12.04

For some reason I have yet to understand, when I upgraded from 11.10 (working flawlessly) to 12.04, internet seems not to work after a while and the only solutions are either to reboot or to disable ...
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1answer
293 views

IPv6 Privacy Extension does not Work in 12.04?

I have a little problem. My new Ubuntu installation become no privacy IPv6 throuth ipv6 privacy extension, whats wrong? I have read that privacy extension ist enabled per default. But why doesen't ...
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1answer
467 views

How can I setup my machine and my local net to create a ipv6 apache server?

I see the ubuntu 11.10 has enabled the ipv6 address. eth0 Link encap:Ethernet HWaddr 78:2b:cb:b0:a0:47 inet addr:192.168.12.11 Bcast:192.168.12.255 Mask:255.255.255.0 ...
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2answers
4k views

How can I set /etc/network/interfaces to just autoconfigure ipv6?

I have a machine that I just want to run ipv6 on, no ipv4. I want to use an autoconfigured ipv6 address - I have radvd running on my network and it is working fine. However there is no config in ...
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2answers
773 views

both IPV4 and IPV6 at the same time over DSL connection?

Let me describe my situation: while I connect computer with the wire, I've got an IPV6 address automatically, there's a "Wired connection" tab in network manager, and I can access an website that ...
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3answers
8k views

IPV6 auto configuration not working

In Windows 7, my computer can automatically get a IPV6 global address and use IPV6 network, but in Ubuntu Natty, I can't find out how to let stateless configuration work. My network is a university ...
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704 views

How do I download and install dhcpv6 on my server using Ubuntu?

I've downloaded dhcp3 on my server and I now need the server to assign ipv6 addresses. Also what is stateless autoconfiguration and how do I use it on my server?

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