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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Debugging IPv6 routing issues

I have been given a native (no tunneling etc) IPv6 /64 block by my ISP. My pfSense router has successfully got an address, and from its WAN interface I can for instance ping ipv6.google.com and get a ...
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Issues configuring IPv6 on Red Hat 5.8

I'm new at linux and i'm trying to configure IPv6 on a Red Hat 5.8 due a specific application I'm working on. This Linux is installed in a VMWare 8 and the IPv4 is working fine! I can ping the host ...
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19 views

What might be causing specific IPv6 HTTPS servers to send an excessive number of RST packets?

Client browsers on my IPv6-enabled home network hang and time out when attempting to load https:// URLs from specific IPv6 sites, such as ones operated by CloudFlare. In those situations, the live log ...
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43 views

Reinstalled Windows 7 - Now cannot connect to any activation server or Microsoft Exchange

I reinstalled Windows 7 this morning, and now I am unable to connect to any activation servers for any Adobe software, and I cannot connect to Office 365 Microsoft Exchange server in Outlook 2013. ...
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25 views

IPV6 and MAC discovery

Is there a way to get the MAC and IPV6 Global link address for the network, just as ARP does with IPV4 in Ubuntu. I tried to retrieve IPV6(Link Local Address) using THC-IPV6 tool. But retrieving MAC ...
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23 views

I can only connect to IPv6 websites

my problem is, that I can only connect to servers and their websites supporting IPv6 (such as google.com or facebook.com). On other sites, a ping request times out. Additional information: 1. My ...
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149 views

Understanding my router IPv6

I got my new Internet contract today. This is the first time I use this router and deal with IPv6. I want to host a local website on a home server. I went to the configuration page of the router and I ...
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My router has only IPv6 and I need to host websites

I have never dealt with IPv6. Today I got my internet installed from an internet company and they brought the router. When I accessed the router to see its public ip address, I found that there is ...
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3answers
45 views

Can't access my computer with its public ip

I installed MAMP on my Macbook Pro. It opens on 'localhost:8888'. I went to http://www.whatismyip.com/ and it gave me my ipv4 address. I copied my ip and put it on my browser like this: myip:8888 and ...
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1answer
29 views

IPSet with IP6Tables ERROR

Can someone please solve my headache and tell me how to fix this? [root@www ~]# ip6tables -I INPUT -m set --match-set blacklist6 src -J DROP ip6tables v1.4.7: Couldn't load match ...
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Switching to IPv6 - Do I need a router?

In the future, since every IP (IPv6 adress) is going to be global, we don't need to use NAT. So basically, why do I need a router on an IPv6-only global network? Why not just replace my router with a ...
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50 views

NAT in local IPv4 to extern IPv6

I have a cable router with an outgoing IPv6 address. In my lan I have IPv4 addresses. I want to access to my local server from internet. I am not familiar with IPv6, is there something like NAT? ...
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22 views

How do I “socksify” IPv6 TCP connections?

For IPv4, one can use REDIRECT iptables target and redsocks/tcpsocks. How to do the same for IPv6? I've tried ip6tables -t mangle -A PREROUTING -d 2600:: -p tcp --dport 80 -j TPROXY --on-port 4455, ...
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1answer
109 views

Using Raspberry Pi as IPv6 router for network

I've succeeded in setting up IPv6 for my Raspberry Pi with tunnelbroker.net. However, I would like to share the /64 I got amongst the other devices in my network. The router of the network is a Virgin ...
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1answer
86 views

Tomcat & Java not listening on IPv6 [closed]

We've got a webserver running Ubuntu 12.04 LTS, Tomcat 7 and Oracle Java. So far, we have been serving a web app on IPv4 address on ports 80 and 443 (80 redirects to 443). I'm trying to make the ...
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1answer
63 views

How can I manually generate a new temporary ipv6 address by generating a new host identifier on Windows/Linux

Right now I am playing a bit with IPv6. Is there any way how I can manually force Windows/Linux to generate a new host identifier instead of waiting for Windows/Linux to do it on it's on schedule ...
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1answer
59 views

Why are we still stuck on IPv4 when we are IPv6 ready? [closed]

With IPv4 finally just about out, why is it so hard to switch over to IPv6? My entire home network is IPv6 and the switch over was easy. Is it a hardware problem that keeps IPv6 from taking off? From ...
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1answer
42 views

when describing an IPv6 subnet, what does the /n notation mean, where n = 64, 128, etc.?

I have seen IPv6 subnets described as /64 or /128, particularly by hosting companies. Does a /64 subnet mean there are 64 ipv6 addresses? Or 64bits worth of ipv6 addresses?
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400 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
79 views

radvd is not assigning prefix

I'm currently trying to setup IPv6 address auto-configuration with router advertisement daemon (radvd) on a virtual machine running CentOS 6.5. But the eth0 interface is not obtaining that prefix. ...
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138 views

How do i make Chrome use an IPv6 address from my hosts file?

I have a Windows 7 machine that's running Ubuntu in a VM. The VM has an interface configured as an IPv6-only, host-only network. The network is statically set up, and all that seems to be working. ...
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1answer
55 views

Router keep advertising itself on ipv6

I keep receiving the following router advertisement every few seconds from my router on ipv6 despite disabling my wireless ipv6 connection: # tcpdump -vv 'ip6 and icmp6' tcpdump: listening on wlth0, ...
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37 views

how to get a new prefix delegation using wide-dhcpv6-client

I use wide-dhcpv6-client to get prefix delegation.But how can I get a new prefix at renew time to prevent from being tracked.
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How is IPv6 stateless autoconfiguration supposed to be used?

I've been using IPv6 for many years now, but it wasn't until I switched ISP recently (and with that, from 6to4 to 6rd) that I found out that stateless autoconfiguration only works on /64 subnets. I ...
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44 views

NetworkManager - IPv6 same metric: prefer wired connection

Situation: I have a Linux system with a wired (enp0s20u2) and a wireless (wlp2s0) networkcard connected to the same network. The networking is managed by NetworkManager 0.9.8.9. The routing tables ...
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147 views

Default Gateway IPv6 but IP set on IPv4

I have a client who has a network setup. I have a couple of devices which work on the network using socket communication which I want integrated onto their network. There is a PC which is to be made ...
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190 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 ...
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143 views

How to deal with Dual-Stack Lite and incoming connections

My ISP (german cable ISP Unitymedia) forced me to use DS-Lite / Dual Stack Lite because he ran out of IPv4 addresses. Common problems with that setup are: interrupted connections (i.e. in online ...
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3answers
105 views

What is the best practice for ipv6 address assignment when using a dynamic prefix?

My ISP recently enabled ipv6 and I thought to myself this would be a good opportunity to roll out ipv6 on my LAN. Unfortunately, I only get a dynamic prefix so I never know the addresses / the subnet ...
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1answer
41 views

How can my program make IPv6 connections?

I see in Resource Monitor that my torrent client uTorrent makes many connections to addresses in IPv6 range. How can it be? My router is D-Link DIR-615 and has no any setting about IPv6. How can any ...
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1answer
89 views

IPv6 only LAN with NAT64 router for Internet

I want to disable IPv4 on my LAN and run only IPv6. I will use a NAT64 Juniper firewall to provide Internet access since I only have IPv4 Internet. Will this break applications? Will I be able to ...
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IPv6 fails under Hyper-V

The setup I have is Ubuntu 12.04 LTS running under Windows 8.1 Pro as a guest OS via Hyper-V. Success of connectivity tests via ping6 seems to depend on the type of interface binded to External ...
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1answer
39 views

IpV6 No network access

I'm Currently using Windows 8 on my laptop, and windows 7 on my computer. They used to be connected by the homegroup, which was brilliant, but now they can't find eachother anymore. I've tried to ...
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Use rtpproxy as a NAT on openIMSCore

I have some problems, I want to ask about rtpproxy and OpenIMSCore server. Actually I want to make IMS running like this: client IPv4 -- > OpenIMS <-- ipv6client. I want to use RTPProxy as NAT, so ...
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Vanity IPv6 address with SLAAC

I would like to force the second half (the interface identifier) of my link-local and SLAAC-configured global addresses to not be derived from my MAC address or completely random (from privacy ...
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Quell ICMPv6 responses using Linux

On Linux, you can use: sysctl -w net.ipv4.icmp_echo_ignore_all = 1 to quell ICMP echo responses from the Linux networking stack. This is different from BLOCKING ICMP responses using ...
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253 views

Attemp to access WAMP server from other devices on network gives 403 forbidden

I set up a WAMP server on my main PC. I have files in the www directory, and can see the results via localhost. The problem is, I am not able to access the server via the server IP from even the ...
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Can IPv6 traffic pass over an IPv4 network? [closed]

Consider the case where there are 2 computers using the IPV6 protocol that want to communicate with each other, and the packet(s) must pass through a network that uses the IPV4 protocol. Can the ...
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71 views

How to “extend” IPv6 stateless autoconfiguration domain to my other network without bridging?

My router's uplink is network that uses has a /64 IPv6 space and uses stateless autoconfiguration. I want the same stateless autoconfiguration to be available on the second router's interface. The ...
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4answers
985 views

bind-address = ::1 # however, netstat shows 0.0.0.0:3306 LISTENING

I'm running MySQL 5.6 on 64-bit Windows 7 with IPv6 and IPv4 enabled. In my.ini: port=3306 bind-address = ::1 I was hoping to use IPv6 and restrict to the loop-back adapter. I used ::1 instead ...
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2answers
94 views

Configuring and troubleshooting IPv6 routing on multi-interface Cisco router [closed]

I recently purchased a new Cisco router for my IPv6 network. I configured the correct IPv6 addresses on all the interfaces and enabled the interfaces on the network. I'm able to ping all of the ...
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1answer
66 views

What is the difference between IPv4 and IPv6 in terms of binary?

I know this question is for entry level users. That I am. New to this world and finding it very interesting. I have done some research on IPv4 and how to convert IP addresses to binary and vice versa. ...
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1answer
213 views

Unable to transmit stream through OpenVPN tunnel

We are trying to transmit a video-stream via netcat from a OpenVPN server to a client. The server is a Raspberry Pi with Pidora running on it. The client is a Notebook with Ubuntu 12.04 and has a ...
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380 views

How to use ipv6 with Vagrant and VirtualBox?

I have a Vagrant setup running Ubuntu in VirtualBox. I'm trying to create a public virtual network interface that I can access from the host. I have had no problem doing this with ipv4. Using ipv6 I ...
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114 views

How to transparently tunnel a port from IPv4 to a remote IPv6 device?

At home, I am connected with an IPv6 address and additionally, my provider provides a NAT-like setup through which I receive a public IPv4 address that I share with other customers (the reason being ...
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735 views

Why does Win7 SP7 64-bit try to resolve DNS agsint IPv6 DNS Servers?

Pretty vanilla, just installed Win 7, SP1, 64-bit. NO IPv6 ACCESS. The network status says IPv4: Internet. IPv6: No network access. Pick a domain that has DNS servers that have both IPv4 and IPv6 ...
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497 views

Dynamic DNS for both IPv4 and IPv6 (using freedns.afraid.org or others)

I want to set up dynamic DNS on my Fritz!Box 7490, so that it is reachable both on IPv4 and IPv6. Note that I want to reach the Fritz!Box itself, and not a computer behind it. The scenario is that I ...
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25 views

Block IPv4 peers in deluged?

Is it possible to block all IPv4 peers and allow only IPv6 peers in deluged? Or can I modify torrent file to accept only IPv6 peers?
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410 views

Windows 8.1 IPv6 No Connectivity

I have a Windows 8.1 computer that is stock - almost no settings have been changed. I want IPv6 Connectivity via Teredo; however, it does not work. ipconfig shows a Teredo IPv6 address ...
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57 views

Should a router reply neighbour solicitation?

I found IPv6 routers in my college don't reply neighbour solicitation. At the first I think it's the bug of routers. To my surprise, I heard recently that my friends who are using Windows can use IPv6 ...