Tagged Questions

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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0answers
11 views

SSH using libssh2 library not working with ipv6 iOs

In my iOS application I am using libssh2 library. I am trying to ssh with ipv6 address, But socket is not creating and getting nil socket. It's working fine with ipv4 address. I have search for this ...
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1answer
24 views

Different servers on the same port ipv4 / ipv6

Say I have two TCP servers A and B. A is an ipv4-only server listening on 127.0.0.1:10000. B is an ipv6-only server listening on ::1:10000. Can I start these on the same machine? That is, how are IP ...
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1answer
18 views

Execute script on ipv6 prefix change

How can I execute a script or program whenever my (world-routeable) IPv6 prefix changes? If there is (currently) no easy way to do this, a pointer to the corresponding Posix system calls would be ...
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1answer
21 views

SSH using IPV6 getting error “No Route to Host” in Mac OS X 10.10.1

I am trying to SSH with IPv6 in Mac OS X 10.10.1 (Yosemite) but I am getting error No Route to Host"** I can do it successfully with IPv4. Can anyone guide me please if it require any network ...
1
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0answers
16 views

Unable to connect to IPv6 from Windows 8.1 via OpenWRT router

I'm new to Ipv6 and trying to learn it. So, I decided to use 6to4 tunneling from Hurricane Electric in my OpenWRT router since my ISP does not provide IPv6. It work perfectly in my router. But when I ...
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1answer
12 views

IPv6 multicast address for all nodes on network

I've got a basic network with 3 nodes (VM's). One node publishes an event, the other nodes listen for it and print something when received. It used to work one-on-one (so node gives event to each ...
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1answer
25 views

Is it possible to setup a private IPv6 subnet and route to the Internet?

I am still trying to figure out how IPv6 works. But I had a question. I currently have an pfSense firewall attached my Comcast service and configured with to request a v4 and v6 WAN address from ...
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0answers
55 views

Why can't I have IPv4 and IPv6 web access simultaneously?

I'm using a 6to4 tunnel from tunnelbroker.net to gain access to the Internet via IPv6. Even after getting the tunnel built and properly established, I wasn't able to get access to IPv6 web pages ...
1
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1answer
50 views

Windows DNS Change IPv4 vs IPv6

I want to change my DNS settings in Windows and I want to use the Google DNS Servers. In all tutorials (Microsoft or Google) I read change IPv4 OR IPv6.. What does it mean? If I change only IPv6 ...
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0answers
19 views

IPV6 address removed from interfaces while I make that interface down but IPV4 address still there

Firstly I assigned IPV4 and IPv6 addresses in an interface in Linux..then I brought the interface DOWN and then again UP that interface.. The problem is that then the IPV6 addresses are removed but ...
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0answers
42 views

No 6to4 default route in Windows 8.1

On my Windows 8.1 laptop, i can’t connect to native IPv6 hosts over 6to4. route print -6 shows that no default route is set: ...
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1answer
21 views

ipv6 route add issue while adding a particular nexthop address

// IPv6 route add issue in kernel for a particular subnet...(1000::)...why? // Adding ipv6 route : sudo /sbin/ip -6 route add 1005:1006:1007:1008::1/64 via 1001:1002:1003:1004::1 dev eth0 RTNETLINK ...
0
votes
2answers
36 views

Neighbor solicitation or advertisement not forwarded between interfaces

I have Ubuntu 12.04 installed in a VirtualBox VM on a Windows 8 host computer. Windows 8 had a hosted (wireless) network to which I can connect with my Android phone. The eth0 interface of my VM is ...
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0answers
18 views

Connect to IPv6 network with a VPN not supporting IPv6

I have connection to IPv6 network, as well as a VPN connection (IPv4 only). However, the two conflicts with each other: when I connect to the VPN, I cannot connect to IPv6 host, by domain name or IPv6 ...
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0answers
18 views

Access remotely two computers via IPv6

I have a little problem on my house. Recently, I installed Teredo on two computers using sudo apt-get install miredo. Now I can access my two computer via IPv6 using Sockets in C. My goal is: I am a ...
1
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2answers
51 views

How to IPv4 through IPv6?

My ISP (Unitymedia Germany) tunnels IPv4 traffic through slow and unstable CGNAT (they call it "AFTR", which seems to be a similar thing) but comes with reliable and native IPv6. Now, is there any ...
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0answers
65 views

What do I need to do to make IPv6 devices globally accessible using Uverse 6rd?

Summary: With UVerse's 6rd implementation, do I need to buy/install/configure a compatible wireless router in the DMZ to properly handle the IPv6 traffic in both directions (incoming connections too)? ...
2
votes
1answer
180 views

Throttled download speeds on new router with Comcast (ipv6 vs ipv4)

Issue with Comcast cable on Linksys or Cisco routers (and others) involving throttled download speed on ipv4. I recently upgraded my internet service to 100+ Mbs and also upgraded my router to ...
1
vote
1answer
37 views

Block (nullroute?) an IPv6 hostname using /etc/hosts

I'm trying to prevent my web browser from communicating with certain hosts (mostly ads and tracking). I have a list of such hosts in my /etc/hosts file. For IPv4 I can do: 255.255.255.255 ...
0
votes
2answers
41 views

IPv4 and IPv6 from different browsers on same computer

On my laptop, in Chrome, when I Google "What is my IP?", I get an IPv6 returned as my public IP address. On the same laptop, in Firefox, I Google the same thing, and get an IPv4 returned as my public ...
2
votes
1answer
56 views

IPv6 Web Site, But Fails IPv6 Readiness Tests

This is driving me bonkers. I have a Windows Server 2012 R2 machine running IIS 8.5. IPv6 is working fine on this machine. All the IPv6 test sites I browse indicate this machine is indeed running ...
0
votes
1answer
23 views

IPv6 network config on virtual box running two Srv2008R2 and Win 7

am trying to set up a test network on my windows 7 laptop to run in an IPv6 environment. basically i have downloaded virtualbox 4.3.12 latest version then created three virtual machines, two are ...
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0answers
18 views

windows 7 has ipv6 connectivity but not v4

My wife's windows 7 laptop had network connection problem out of the blue yesterday. It can access google sites like youtube, but nothing else. When I troubleshoot, I found that it has IPV6 ...
0
votes
1answer
44 views

Linux Networking: How to forward incoming IPv6 connections from the internet via a second IPv4 interface to other computers in a local network?

I have some kind of Debian server-gateway-zombie that has two network interfaces: eth0 and wlan0 (yeah, wlan0... I know.). eth0 is connected to a internet cable modem that assigns an IPv6 address to ...
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1answer
78 views

ipv6 ping host got destination host unreachable until run tcpdump

At first (all computer booted) when I ping the gateway (linux computer, two network cards(one is usb)) from a windows computer, I got: "Destination host unreachable", but when I run "tcpdump -i ...
0
votes
1answer
72 views

FTP: Unable to connect times out on directory listing

Been going round in circles for this for days now and i'm really stuck. My ftp had been working fine through filezilla, and through the ftp interface in PHP Storm Then all of a sudden the next day i ...
0
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0answers
51 views

IPv6 automatically gets disabled after every second reboot

I'm trying to set a static IPv6 address on Windows 7 and I connect just fine. But after 2 reboots (not one), it disappears. After much troubleshooting, I also see the DisabledComponents reg key ...
3
votes
1answer
77 views

Will I be able to register my own IPv6 address as an individual?

I know that at this moment, for all practical terms it is almost impossible to register a small portion of IPv4 addresses as an individual or even a small scale corporation. My question is if the ...
1
vote
1answer
48 views

Firefox and Chrome redirecting IPv6 to Google search

There are already answers how to teach those browsers to resolve the targets (enable ipv6 dns), but my problem is, when I enter an address (including http): http://2001:db8:0:1::10:1ff ...
0
votes
1answer
45 views

IPV6 DHCP server configuration

I'm new to IPV6. I'm trying to configure IPV6 server on my Linux VM using isc dhcp. we have the following content dhcpd6.conf file default-lease-time 600; max-lease-time 7200; log-facility local7; ...
0
votes
1answer
51 views

How can you access your router via IPV6?

Okay, first I wanted to do this just for the lulz, now it is a matter of principle because I need to understand it. My Router supports simultaneous IPV4 and V6. For thus, I have 2 default gateways: ...
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0answers
21 views

How can I test IPv6 security with a mikrotik router?

Noob here. I'm experimenting with IPv6, and I want to test security and encryption. Does anyone know if there is some way to send a secure test packet between my computer and Mikrotik router? ...
0
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1answer
137 views

Setting up IPv6 internal network with WiFi access point

first of all I'm completely new to ipv6 so please forgive me if I'll say something stupid. I'm trying to setup an ipv6 internal network to test an application I wrote ( yeah I can code for ipv6 but I ...
0
votes
1answer
73 views

How do I configure a mikrotik router to run on IPv6?

I am experimenting with ipv6 and would like to connect to my Mikrotik router via ipv6 on a local level. This would include connecting to it by an ip6 address, and interacting via icmp6. I have ...
0
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0answers
28 views

Gogoc and OpenVPN - can't seem to make them work together

I have a problem with my setup and I was hoping you guys could help me figure out what I should do. I'm currently running a 6LowPAN using RaspberryPi and Arduino nodes. Since I don't have native IPv6 ...
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0answers
64 views

PPTP VPN only using IPv6 Connections?

I followed this tutorial to set up a PPTP VPN: https://www.digitalocean.com/community/tutorials/how-to-setup-your-own-vpn-with-pptp Once complete, I connected to it with my desktop and noticed I ...
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0answers
66 views

IPv6 configuration: ISP is blocking Neighbor Discovery

My ISP offers IPv6 to interested customers, but doesn't provide any support in this regard. I've been given a /64 prefix (let's call it 2345:6789:11:22::/64), a gateway address (2345:6789:11:22::1) ...
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0answers
25 views

How do i get pdnsd to cahce both ipv4 and ipv6 records and use what's available?

This is how i run pdnsd mostly: pdnsd -4 -c /etc/pdnsd.conf -d -muo Unfortunately for some websites it looks for an AAAA record vs an A record and because AAAA is not cached by pdnsd it takes time. I ...
0
votes
3answers
134 views

PTR record and A record should match. What if there is no A record?

If I understand RFC1912 section 2.1 correctly, these rules apply for PTR records: 1) Every working IP should have a PTR record 2) PTR and A records should match (although this is not checked ...
2
votes
1answer
124 views

Configuring a static IPv6 address that inherits delegated prefix

My ISP (comcast) delegates a prefix, my router is passing along the prefix delegation (pd) onto the LAN. My Debian machine is getting the prefix and appending using EUI-64 address. That's nice but not ...
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vote
2answers
228 views

Get IPv6 correctly through another router

My ISP is Unitymedia NRW, Germany. It it a cable (like TV) ISP which has given me a Technicolor TC7200 modem/router. The ISP uses DS-Lite, so I only have a public IPv6 address, and no IPv4 address. ...
0
votes
1answer
41 views

IPv6 gateway configuration

I'm running a dedicated server at OVH with 16 virtual machines on vmare ESXI. The vms are running debian 7. Network 2001:xxx:2:9508::/64 Gateway 2001:xxx:2:95FF:FF:FF:FF:FF according to the OVH ...
1
vote
1answer
76 views

Configuring IPv6 on Debian - Global temporary address

My mac generates a daily temporary ipv6 for outbound connection usage, is there something similar that's available on Debian? Thank you! -Pablo
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2answers
61 views

Running DHCP for ipv4 and ipv6 on different servers in the same network

I have a network where ipv4 addresses are assigned via DHCP on the router. The router, however, is capable of routing ipv6 but does not support ipv6 DHCP. Would running 2 DHCP servers (one for ipv4 ...
22
votes
4answers
2k views

What's the responsibility of an IPv6 owner?

Living behind a consumer-grade router for the memorable past, I guess I took the side-effect of NAT for granted, in that I had the burden of forwarding ports when I needed to, instead of have to ...
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votes
1answer
46 views

IPv6 subnetting - coverting decimal to hexadecimal

I came across a question on IPv6 subnetting, You work as a branch network administrator of a large company with offices in many cities around the world. The corporate network is currently in ...
2
votes
0answers
61 views

Why does Google Chrome listen on port 8000?

Occasionally when starting up a development server (again), it will die with the message that the port 8000 is already in use. Running $ lsof -n -i4TCP:8000 | grep LISTEN then reveals Google ...
0
votes
1answer
58 views

Is it possible to get two IPv6 networks to communicate over IPv4 Internet in this case?

I have a setup of a laptop connected to a cellular IPv4 network (3G usb dongle) and PC connected to another IPv4/IPv6 network. Both have been configured to run as IPv6 routers and each has its IPv6 ...
1
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1answer
91 views

Getting LAN clients to use IPv6 tunnel of Debian router

I have a Debian Jessie powered server which acts as router for our home network. I have succesfully managed to set up an IPv6 tunnel using TunnelBroker and traceroute commands return succesfully. ...
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1answer
73 views

Enabling IPv6 causes certain websites to go dark?

I'm trying to enable IPv6 since my new ISP (CenturyLink) supports. When I do, however, I am unable to connect to half the websites I visit, even if they're well known and well developed. (Yahoo.com ...