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.
1,291
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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 ...
0
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0
answers
2k
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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 ...
0
votes
1
answer
243
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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 ...
0
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1
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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 ...
-1
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1
answer
232
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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
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0
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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 ...
1
vote
1
answer
371
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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 ...
2
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2
answers
4k
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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:
...
2
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1
answer
1k
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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 ...
1
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0
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903
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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 ...
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1
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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 ...
1
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1
answer
8k
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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 ...
2
votes
1
answer
5k
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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 ...
0
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0
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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/...
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1
answer
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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 ...
4
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2
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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....
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1
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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 ...
2
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1
answer
6k
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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 ...
2
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2
answers
6k
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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 ...
0
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0
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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 ...
3
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0
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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 ...
4
votes
1
answer
751
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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
...
0
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1
answer
532
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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....
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1
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3k
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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 ...
3
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0
answers
637
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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 ...
2
votes
1
answer
2k
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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 ...
1
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1
answer
1k
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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 ...
0
votes
1
answer
645
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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 ...
1
vote
1
answer
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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: ...
0
votes
0
answers
30
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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, ...
2
votes
1
answer
2k
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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 ...
2
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3
answers
513
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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 ...
1
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0
answers
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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
{
...
0
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0
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2k
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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 ...
2
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0
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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] ...
3
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0
answers
805
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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 ...
0
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1
answer
447
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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 ...
4
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1
answer
3k
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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 ...
16
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3
answers
80k
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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 ...
1
vote
1
answer
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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 ...
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0
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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 ...
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1
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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 ...
1
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2
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1k
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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 ...
0
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0
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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:...
1
vote
2
answers
4k
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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 ...
6
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2
answers
15k
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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?
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1
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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) ...
3
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1
answer
2k
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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 ...
0
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1
answer
1k
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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 ...
3
votes
1
answer
657
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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 ...