IPv6 is the newest version of the Internet Protocol. It is designed to supersede IPv4 as it offers many more addresses.

learn more… | top users | synonyms

0
votes
2answers
38 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 ...
0
votes
0answers
15 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 ...
12
votes
3answers
2k views

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 ...
0
votes
1answer
15 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 ...
0
votes
1answer
24 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 ...
0
votes
2answers
44 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 ...
1
vote
1answer
22 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 ...
0
votes
2answers
48 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 ...
0
votes
1answer
8 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 ...
0
votes
1answer
26 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 ...
-1
votes
0answers
13 views

How to stop generation of Link Local IPv6 address?

I want to stop generation of link-local IPv6 address which is based on device's MAC address. I am using Linux OS. Disabling autoconf option just stops only generation of global IPv6 address based on ...
1
vote
0answers
19 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 = ...
2
votes
3answers
125 views

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 ...
1
vote
1answer
84 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 ...
0
votes
1answer
36 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 ...
1
vote
3answers
62 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 ...
0
votes
3answers
57 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 ...
0
votes
0answers
8 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 ...
0
votes
2answers
38 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 ...
0
votes
0answers
18 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 ...
1
vote
1answer
22 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 ...
3
votes
1answer
141 views

How to enable IPv6 in OpenWRT 15.05?

My university provides native IPv6 support in campus network, and I want to let devices (running Linux) in my TL-WR720N router's LAN have IPv6 access. After many trials, I can make LAN devices able ...
1
vote
0answers
65 views

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 ...
0
votes
0answers
16 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 ...
0
votes
2answers
61 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 ...
2
votes
3answers
61 views

How to remove only one IPv6 address from an interface?

I have board with linux kernel 2.6.23.12 where on eth0 interface it has two IPv6 addresses. root@ramana:~# ifconfig eth0 eth0 Link encap:Ethernet HWaddr FF:AB:CD:EF:85:94 inet ...
0
votes
2answers
178 views

How do I completely disable IPv6 on my router?

I'm having some issues on many devices on my network, that might be IPv6 related. In order to troubleshoot it, I want to entirely disable IPv6 on the router itself. I'm using a Technicolor TD5130v2 ...
0
votes
0answers
15 views

How does Linux handle reachabletime variable of RA message in IPv6 neighbour Discovery Protocol?

I send a IPv6 RA message whose reachabletime is 5s and an echo request to a linux system like CentOS6.5/Ubuntu12.04. Then I send a NA message upon receiving the NS message linux sending. After ...
3
votes
1answer
86 views

IPv6 connection fails on Chrome, timeouts on Firefox

I noticed there's a certain page taking a long time (5 to 10s) to load on Firefox. I traced the delay and it happens when trying to connect to a certain host, bn.uol.com.br. Strangely, this delay ...
1
vote
1answer
42 views

Freebsd / pf.conf / IPv6: Can't connect to ssh via IPv6

I'm using FreeBSD 10.2 and can't connect to ssh via IPv6. I configured pf as follows: #external interface EXT_IF = "igb0" # block all incoming traffic, pass all outgoing block all pass out quick # ...
1
vote
1answer
51 views

Resolving Ipv4 adress from DNS using the Ipv6 adress of a host

I need to make a DNS query to one of my clients using IPv6 to resolve the IPv4 adress for the machine, how would I go about doing that. I know i can just use the hostname to resolve both IPv4 & ...
0
votes
0answers
60 views

How do I make my dd-wrt router obtain a WAN IPv6?

My ISP, Andrew & Arnold, provides IPv6 natively. I'm using dd-wrt in my router. How do I make it obtain the WAN IPv6 and distribute it to computers in my network?
0
votes
0answers
22 views

Hyper-V private/internal network providing ipv4 address

I have Ubuntu 15 running under Hyper-V. When I use external network then the VM is assigned with an ipv4. When I switch to internal or private network, the VM is assigned with an ipv6 instead. A side ...
12
votes
3answers
2k views

How do I ping localhost using IPv6?

I'm trying to understand IPv6 better. Firstly, I try ifconfig, and I get the following: eth0 Link encap:Ethernet HWaddr XXXXXXX inet addr:X.X.X.X Bcast:X.X.X.X Mask:XXXXXXXXX ...
0
votes
0answers
49 views

IPv4 or IPv6 for local DNS server?

I am a bit inexperiencied with networks. I have set up and dns server in a virtual machine on Debian 8 using dnsmasq. To test if it was working, I gave it only one record: www.facebook.com with ...
3
votes
1answer
57 views

IPv4 connectivity to IPv6-only host

I have a IPv6-only host (let's name it S) in my home network which is accessible from outside by its IPv6 address. Since my ISP doesn't provide any IPv4 connectivity, it cannot be accessible from IPv4 ...
0
votes
0answers
81 views

Unable to run apt-get install at kali linux

I was trying to update my kali2.0 machine through apt-get update,I properly configured sources.list as per kali linux repositories I checked my Internet connection and its working fine,myself ...
2
votes
1answer
123 views

Linux netstat shows ipv4 mapped ipv6 address

Even after disabling ipv6 on my linux machine and restarting network services, and not having an ipv6 address assigned to an interface, one of my daemon (cassandra to be specific)is using an ipv4 ...
0
votes
0answers
14 views

IRC connect time on IPv6 using linux

I am in need of some help. When I connect to IRC servers by IPv6 it has taken upwards of 6 minutes to connect. But when i use v4 it takes seconds. This happens on all irc servers that I have tested ...
0
votes
1answer
14 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 ...
1
vote
1answer
17 views

“awk” not working when using it with “watch”

In order to watch my IPv6 traffic totals I want to run this command: netstat -s -6 | grep -i octet | grep -vi cast | awk '{ print $2/(1024*1024*1024) }' combined with "watch -n1", so it gets run ...
-1
votes
1answer
48 views

Windows resolving hostnames thru IPv6 ULA

I'm running Windows 8.1 and it's trying to resolve hostnames through a IPv6 ULA. Have a look at ipconfig /all: Windows IP Configuration Host Name . . . . . . . . . . . . : rivercardiff Primary ...
0
votes
1answer
40 views

Using IPv6 with Firefox on Windows 7

I have an intranet portal on which I've just enabled the IPv6 interface, and I'm trying to test it. (I can't disable the IPv4 interface yet.) On a test client machine running Firefox on Windows 7, ...
0
votes
2answers
336 views

long delay during ssh login

When I connect to my Debian server via ssh, the ssh client tries to establish a IPv6 connection. This fails after a long timeout (~30sec), then falls back to IPv4, which then succeeds, and I'm ...
0
votes
0answers
123 views

Force Squid to connect to sites over IPv4 rather than IPv6

Is there any feasible way to force a select amount of domains to use IPv4 connectivity rather than IPv6 with Squid, whether its via acl other another method? I'm aware of the dns_v4_first config ...
25
votes
4answers
4k views

Why does the “Internet of Things” enforce the need for IPv6 addresses?

If you have multiple devices in one network, the amount of IPv4 addresses will not increase linearly to accomodate the number of devices. There is just one IPv4 address per Network/Router that is ...
19
votes
2answers
3k views

Can a domain name have both IP addresses (IPv6 and IPv4)?

Can a domain name (example.com) have both the IP addresses, IPv6 and IPv4? Which IP address does a domain name have? IPv6 or IPv4? But I am not sure that it has both or any one at a time.
0
votes
1answer
52 views

Router is inaccessible, inexplicably giving IPv6 gateway

So I've been using this Router/Modem from my cable company for about a year now. I accidentally unplugged it earlier today, and now while I can access the Internet through a wired connection, my Wi-Fi ...
0
votes
0answers
19 views

NAT64 using Tayga

I have successfully configured Tayga to facilitate NAT64. I gave a dynamic pool as 10.0.64.0/24. Currently, I have 2 IPV6 hosts configured and trying to ping an IPV4 host through the NAT64 server. ...
8
votes
1answer
92 views

How do I specify an IPv6 address in the X Window DISPLAY variable?

I'm trying to export a DISPLAY variable containing a numeric IPv6 address. What format would the variable take, since IPv6 addresses contain :, which normally is used for the display number? Googling ...