Questions tagged [ipv6]

Questions about IPv6, the newest version of the Internet Protocol. This tag should be used when asking about personal/home network IPv6 addressing, or basic IPv6 knowledge. Questions related to company-grade IPv6 networks are off-topic and should be asked on Network engineering SE.

Filter by
Sorted by
Tagged with
5 votes
0 answers
3k views

How can I disable IPv6 DNS in Windows 10?

My proxy server (though ping for 300ms+) have IPv6 addresses. I usually use it. So disable whole IPv6 is not a solution. Auto detected IPv6 DNS annoys me for wrong/lacked/polluted records. Windows ...
wiki908's user avatar
  • 51
0 votes
0 answers
2k views

RDP RemoteApp works with IPv6 but not IPv4?

I have a Windows 7 Professional machine that I'm using as a RDP server. I've used RemoteAppTool to generate a .RDP file to connect to a RemoteApp application. Below is the .RDP file: allow desktop ...
victorhooi's user avatar
0 votes
1 answer
243 views

Cannot access ipv4 or lan - only ipv6 until reboot

Have a computer using Windows 7 Home Premium connected to a LAN. After approx 1-2 days it regularly loses all ipv4 connectivity, including ability to print to the networked printer, but retains ...
Algis's user avatar
  • 1
0 votes
1 answer
4k views

Ubuntu guest boot fails to raise network interfaces on host boot (auto-start)

I'm running Ubuntu 16.04 on my server which is used for virtualization. It's running multiple Ubuntu 16.04 guest using the qemu-kvm software for virtualization. The server is using libvirt to manage ...
Qlii256's user avatar
  • 171
-1 votes
1 answer
232 views

How to retrieve the RA (Router Advertisment) Received by My PC?

I want to see all the RA (Router Advertisment) Received by My PC. Where I can found a uch information on my ubuntu linux system
Mohamed KALLEL's user avatar
1 vote
0 answers
38 views

Can cable signal strength cause failures in particular layer 3 protocols?

In the past, I've lost 98%ish IPv4 connectivity on my Comcast connection, but I had IPv6 connectivity fully. (IPv4 SYNs, or the corresponding SYN-ACKs (it's hard to tell) were getting dropped most of ...
Thanatos's user avatar
  • 2,492
1 vote
1 answer
371 views

router cascade not working as expected

I have two routers, one is provided by my isp and has an integrated modem (from now on: "modem"), the other one is a netgear r7000 (from now on: "router") I bought. I wanted to cascade the router to ...
user avatar
2 votes
2 answers
4k views

Connecting to IPv6-only server using WinSCP

Some family members asked me to help configuring WinSCP. They need to connect to multiple servers some of which are dual stack and some which are IPv6-only. What we did so far is the following: ...
kasperd's user avatar
  • 2,891
2 votes
1 answer
1k views

MacOS not able to ping LAN-servers over IPv6

Since June I got an IPv6 subnet from my ISP. I'm using an Asus AC-66U router which is configured to get a native IPv6 prefix. The prefix length is 56 and the router is configured for stateless ...
Qlii256's user avatar
  • 171
1 vote
0 answers
903 views

How does linux know to run dhcpv6 on the client?

I'm playing with ipv6 on my home network. I'm trying to understand how a linux client (on ubuntu 16.04, if that matters) knows to talk to the dhcpv6 server (either for an IP address or to get DNS ...
Craig Howard's user avatar
1 vote
1 answer
4k views

Creating an IPv6 hotspot on my laptop

I need to create a hotspot on my laptop so I can test some IPv6 interactions on the app I'm developing. I used the following commands on Windows 10 to set up a hosted network: netsh wlan set ...
Uri Popov's user avatar
  • 113
1 vote
1 answer
8k views

Setting up IPv6 on a router behind another router

I have a TP-Link Archer C2 AC750 (V1) router. It works well for IPv4 but I am not able to setup IPv6. Network topology The discussed router shares internet connection to devices in my flat (Macs and ...
Melebius's user avatar
  • 1,857
2 votes
1 answer
5k views

Windows netsh TCP portproxy fails to forward packets through loopback, solutions?

Here is the situation, running Win 7 Pro SP1 (Version 6.1.7601), Windows firewall is completely disabled (even added rules to allow anything through just in case somehow it's still going), no programs ...
Dustin Darcy's user avatar
0 votes
0 answers
3k views

How to make a Windows Server 2012 R2 computer prefer an IPv4 DNS server address over an IPv6 DNS server address?

In my computer lab, I have an Active Directory domain with a domain controller and a few member servers, all running Windows Server 2012 R2. The lab is connected to the Internet via a cable modem/...
John Doe's user avatar
-1 votes
1 answer
1k views

IPv4-only Wifi in an IPv6-enabled OpenWRT router

I have a router with OpenWrt and IPv6 connectivity through a tunnel (HE.net). I need two Wifi connections: one with IPv4 and IPv6, and another one with IPv4 only. Is this possible? Maybe I can set up ...
Paul's user avatar
  • 3
4 votes
2 answers
1k views

In pf, why can IPv6 be specified as a 'protocol' as well as an address family?

In the pf firewall, the pf.conf man page 'parameters' section states that "protocol" is anything from /etc/protocols, and that it's distinct from "address family" ("<af>") which is inet or inet6....
Stilez's user avatar
  • 1,685
-1 votes
1 answer
80 views

How to get a pure IPv6 adress? DS Lite emulation [closed]

I search a way to emulate a DS Lite Connection. One of my webservices has problems when a user has only a ipv6 adress. Any suggestions? Payable services would be also ok My provider has no IPv6 so ...
mazleu's user avatar
  • 3
2 votes
1 answer
6k views

Wake-on-LAN from internet via IPv6

[Moving this from Network Engineering, since it's a home networking question.] I'm a bit new to this, so I'll try to ask my question as coherently as possible. I'm trying to set up a computer so that ...
terry87's user avatar
  • 121
2 votes
2 answers
6k views

Proper Way to Set Default Outbound IPv6 Address on Linux in ifcfg-eth0

What onboot configuration option will set the default outbound IPv6 address to use when a Linux machine initiates an outbound IPv6 connection? IPV6ADDR= does not work to specify the default outbound ...
Crash Override's user avatar
0 votes
0 answers
154 views

IPv6-only Windows Server remote acess from IPv4-only client

I have one Windows Server in a network where my ISP give me a public IPv6 and an CGNAT IPv4, because of that, it can not be accessible from an IPv4-only client. Is there any way i can make this server ...
Bruno Mendes's user avatar
3 votes
0 answers
1k views

How do I get Windows 10 to respect my IPv6 Interface metric?

On a Window 10 system, I have multiple interfaces. I have assigned route metrics for both IPv4, and IPv6 for each interface. My IPv4 metric is used when I look at the route table. For IPv6 my metric ...
Zoredache's user avatar
  • 20k
4 votes
1 answer
751 views

How can I make a program use the public instead of a temporay IPv6 address?

I currently am and want to keep using the privacy extension (Windows 10 default). > ipconfig Windows IP Configuration Ethernet adapter Ethernet: Connection-specific DNS Suffix . : home ...
jan-glx's user avatar
  • 417
0 votes
1 answer
532 views

pppd for IPv6 only tunnel

I have this command which works great for IPv4: sudo pppd updetach noauth passive pty "ssh ubuntu@somehost -i ~/somekey.pem -o Batchmode=yes sudo /usr/sbin/pppd nodetach notty noauth" 10.0.0.1:10.0.0....
Eric des Courtis's user avatar
1 vote
1 answer
3k views

XAMPP public server Ipv6 is avaible only locally

i had few years ago IpV4 based server, but since they turned my internet to IpV6 configurable only, i wasn't be able to get it working, I can access my XAMPP Domain locally with IpV6 address using ...
zapole's user avatar
  • 15
3 votes
0 answers
637 views

IPv6 Causes TCP SSL requests to Microsoft CDNs to fail (connection reset)

NOTE: The following only applies if I enable IPv6. If I disable IPv6 via control panel/adapter settings in Windows everything works fine. See latest update at bottom. Windows 10 Desktop -> Wired ...
Mike's user avatar
  • 241
2 votes
1 answer
2k views

How to bind IPv6 server sockets behind home router using dynamic prefix delegation?

I'm trying to run a personal web service from my lan, on IPv6. I want it to be visible on the public internet, and behind an AAAA record. I need to balance ease of setup, and graceful reconfiguration ...
init_js's user avatar
  • 375
1 vote
1 answer
1k views

IPV6 Dynamic DNS (cgnat/teredo)

I'm trying to set up Dynamic DNS so that I can have an app hosted out of my house. I have internet through Bell Canada and port forwarding/DMZ on the router don't seem to work (Checked with both ...
David Carpenter's user avatar
0 votes
1 answer
645 views

Not able to access my Tomcat web application through IPv6 but works fine with IPv4

I have a web application running on Tomcat. I can access it through IPv4 IP but not through IPv6 IP. netstat -anp | grep -i 8060 tcp 0 0 :::8060 :::* LISTEN 7216/java The port 8060 listens to IPv6 ...
Confusion's user avatar
1 vote
1 answer
5k views

telnet connection refused with IPv6 address

I am trying to use telnet (I know ssh is preferable than telnet but I must need to use telnet here) with IPv6 address. telnet 2001:db8::b84c:f5f3:741f:710 telnet: can't connect to remote host: ...
Suresh Kota's user avatar
0 votes
0 answers
30 views

Malware problems all seem to have .ru as part of url

Can anyone tell me how to block any network streams packets etc. that have hopped to .ru at any point blocked from accessing pic and/or router. Continual loss of sysadmin on all OS platforms, ...
W Smith's user avatar
2 votes
1 answer
2k views

IPv6 : Access comcast delegated 2601 /64 internal network over the internet

I'm trying to understand how IPv6 networks work. I have been assigned a 2001: /128 address by Comcast (my ISP) for my internet facing cable modem (c300-100NAS Netgear). I have received a system ...
kkoolpatz's user avatar
2 votes
3 answers
513 views

L3 switch vs. router on the bounds of IPv6 network

Consider a typical home network of say ~20 devices. Let's say I want to make it a IPv6 only. I want to do it with only gigabit-capable devices. I can do that through a router or an L3 switch. Let's ...
levant pied's user avatar
1 vote
0 answers
1k views

Unable to ping a specific system on IPv6

I've enabled IPv6 on my network, using DHCPv6 and subnet fd00::/64. My DHCP server's IP is fd00::1:1:1 and I'm unable to ping it from some systems on my network. My radvd.conf: interface br0 { ...
user6148823's user avatar
0 votes
0 answers
2k views

Remote access a server with only ipv6. Avaliable approaches?

Recently I changed my ISP. This new ISP provides me a real IPv6, and IPv4 behind a CGNAT, so, no way to configure DMZ or port forward. I set up a linux server (Ubuntu Server) which want to access via ...
Roberto Correia's user avatar
2 votes
0 answers
1k views

My syslog is full of errors from NetworkManager about setting the MTU for wireless adapter

NetworkManager keeps trying to set the MTU for my wifi connection to 9216 and then complain about it: NetworkManager[9173]: <error> [1469713916.019478] [platform/nm-linux-platform.c:2489] ...
dovetalk's user avatar
  • 233
3 votes
0 answers
805 views

IPv6 link-local multicast vs. IPv4 broadcast

I know that there is no broadcast in IPv6. However, there is the concept of link-local multicast using the ff02::1 IP address, reaching all hosts in the very same local network. So what is the ...
user1816723's user avatar
0 votes
1 answer
447 views

Is this Microsoft service I found safe to use and/or will it ruin user's privacy?

I was trying to find a IPv6 tunnel after a site needed it, and was about to change the default Teredo config when I realized it was set to Microsoft's servers. I later ran netsh int teredo set state ...
user avatar
4 votes
1 answer
3k views

Why does my Ubuntu IPv6 ssh server not work?

I am failing to set up my Ubuntu Server (16.04 LTS) with OpenSSH via IPv6. The server is running inside a VirtualBox Machine, which has its network interface set to "network bridge" (if that is the ...
JoW's user avatar
  • 66
16 votes
3 answers
80k views

Disable IPv6 with OpenWRT

When I use stock Linksys firmware on my router, my networked devices properly use IPv4 only to access the Internet. When I use OpenWRT 15.05.1, the devices try to connect to various sites using IPv6 ...
Olathe's user avatar
  • 293
1 vote
1 answer
2k views

Setting up Static IPv4 and IPv6

This question is for an internal home network. I purchased a new PC and installed Windows 10. By default, both TCP v4 and v6 are enabled, and run in DHCP mode. I am familiar with configuring the ...
joedotnot's user avatar
  • 451
0 votes
0 answers
368 views

Computers can't access each other when both of them connect to Apple NAT64 hotspot

We have an iOS App on App Store. To submit a new version after Jun 1st, 2016, we have to support an “IPv6-only network” according to this link. We referred to Apple's documentation, upgraded a Mac ...
Porter Liu's user avatar
1 vote
1 answer
1k views

How do I disable CGN (LSN) so I can host a server?

I have figured out that inbound packets do not reach my home network due to an apparent existence of CGN. This fully inhibits my ability to host a server. I have set up everything correctly; port ...
JustBlu's user avatar
  • 23
1 vote
2 answers
1k views

Home network: configure for IPv6

I want to configure my home network to be able to access the Internet via IPv6, because I want to learn what it takes, and I want to be a part of reducing demand (eventually) for IPv4 addresses. My ...
Daniel Bragg's user avatar
0 votes
0 answers
79 views

always failed to ping ipv6 from AP to Sta

I have a AP and Sta connected wirelessly, configured as following: AP: 2001:db8:290c:1291::49/48 Station: 2001:db8:290c:1291::48/48 when I do ping from AP to Station, it always show PING 2001:db8:...
Jess's user avatar
  • 143
1 vote
2 answers
4k views

Does Skype use only Ipv4 or also IPv6?

A simple question. Does Skype use IP version 6? If yes, how can i set it to use this type of addresses? When IPv4 is not available, Skype seems to have problems: Are there other VOIP application ...
EmanueleRiso's user avatar
6 votes
2 answers
15k views

Configuring Windows 10 to prefer IPV6

I would like for Windows 10 to attempt connections to IPV6 before V4. Is there a setting I need to change in order to cause this preference?
Jon Will's user avatar
0 votes
1 answer
63 views

Do you have to care about ipv6 for security?

I currently have 2 IP : one ipv4 and one ipv6 meaning that both protocols can be used. I'm wondering whether it is dangerous from a security standpoint : If I make a set of rules for iptables (v4) ...
ChiseledAbs's user avatar
3 votes
1 answer
2k views

RADVD for IPv6 assignement, DNSMasq for DHCP handing out DNS for IPv6 clients - how to do?

As you know, Windows does not support setting up DNS via Router Advertisements (RDNSS) for IPv6. So it should use a DHCPv6 server to somehow get the needed address. I'm using DD-WRT on my router ...
Evengard's user avatar
  • 1,784
0 votes
1 answer
1k views

Is there ipv6-only dns?

I have a system with ipv6 only connectivity. I'd disable ipv4 altogether, except it's pretty hard to remove, and stome stuff wants to talk to 127.0.0.1. It's a Linux system, running in an LXC ...
Brian Minton's user avatar
3 votes
1 answer
657 views

Windows 10 no IPv6 RA after suspend

I have noticed that a Windows 10 client sometimes does not get an IPv6 address on my network. Looking in to this I have discovered it is limited to resume after suspend. Running wireshark on the ...
fileinsert's user avatar

1
12 13
14
15 16
26