Tagged Questions

The length of an IPv6 address is 128 bits, compared to 32 bits in IPv4. Therefore the address space supports 2128 or approximately 3.4×1038 addresses. This means that many more devices can be connected directly to the Internet. A typical IPv6 address would be represented like this: ...

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1answer
30 views

How do you view ipv6 websites through browser?

When I had Apache installed and running, I could type in "127.0.0.1" or the inet address I got from ifconfig, and I would be connected to my server. However, if I type in "http://[::1/128]" in my ...
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1answer
28 views

Accessing IPv6 addresses through an SSH tunnel

I have a remote Arch Linux server which has IPv6 enabled (through Tunnelbroker, I am able to do ping6 ipv6.google.com successfully) and I want to know if it's possible to use PuTTY on my Windows 7 ...
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votes
1answer
9 views

IPv6 on ASUS WL-520GU or other

It's coming this summer. IPv6!!! This DD-WRT tutorial is information overload for me. I can't tell if this would be supported on my ASUS WL-520GU, and I don't see a clear way to make it a secure ...
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votes
1answer
60 views

Why does NAT64 require DNS rewriting?

When a IPv6 only host wants to reach a IPv4 only host, why does the DNS server (or possibly the NAT-PT gateway?) have to rewrite the A responses to AAAA? Couldn't IPv6 simply embed the IPv4 address ...
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1answer
59 views

Can't access my shared folder by ipv4, only ipv6 and name

How to make possible to access to shared folder on win7 machine by ipv4? as my linux machine needs it. The problem is in fact that i can't access by ipv4 to this folder even from this win7 computer, ...
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3answers
58 views

MacBook Pro wants to connect to IPv6 addresses for some strange reason

A very weird behavior on a MBP. It seems that some websites are now advertising Ipv6 addresses (e.g., www.doodle.com, addons.mozilla.org, etc.). For some reason, even though I only have an Ipv4 ...
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3answers
109 views

Why does IPv6 use 128 bit addressing? [closed]

When I first heard about IPv6, I just assumed that it doubled the number of addressing bits in IPv4, from 32 bits to 64 bits. This would have been enough for at least 2.6 billion addresses for each ...
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votes
3answers
208 views

What do the numbers used in a IPV6 address mean?

I am trying to understand IPV6. I have a server with the following IPV6 address: 2607:f750:0:3f::f59. I don't understand what the numbers mean. It looks totally different from an IPV4 address. ...
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1answer
28 views

Determining the way the IPv6 interface identifier was created

In IPv6 the 64bit interface identifier of an IPv6 address can be determined in one of 3 ways: Stateless Address Autoconfiguration: put in the MAC address of the NIC (+ FF:FE and flip a bit). ...
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2answers
78 views

Can't ping Linux IPv6 address from Windows XP

I gave an IPv6 address to my SUSE Linux machine on a VirtualBox VM with ifconfig eth0 inet6 add ... I can't ping that address from Windows XP (vice versa) The address of the Linux machine is efbb::26 ...
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2answers
111 views

How can I make localhost resolve to 127.0.0.1 instead of ::1?

When I ping localhost the address resolves to the ipv6 loopback of ::1 My MySQL and Apache installations expects the ipv4 address of 127.0.0.1 How can I configure my WindowsXP to resolve localhost ...
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0answers
39 views

IPv6 addresses in dnsmasq

As I need to use dnsmasq to route all requests on *.local to my local machine (and use there an IPv6 addresses), i set up the dnsmasq like this: /etc/dnsmasq.d/my-local.conf address=/local/::1 ...
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0answers
41 views

NDP entries on linux

Just as we have /proc/net/arp holding ARP entries in Linux, what is the file that holds the Neighbor Discovery Protocol (NDP) entries? I searched for it on the Linux box running IPv6, but to no avail. ...
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0answers
27 views

IPv6 SSM multicast: is it built in or do you have to use another protocol like PIM-SM with it?

I'm trying to understand how integrated SSM multicast is to IPv6. Is it built in and sent solely by ICMPv6 messages or do you have to run something extra like PIM-SM? The reason I as is I've seen ...
2
votes
1answer
75 views

How to prevent IPv6 privacy extensions from breaking my long-lived SSH sessions?

When using SSH from my Windows 7 desktop to Linux servers, via IPv6, I'm having the following two problems, because of IPv6 Privacy Extensions: I'm used to keep ssh sessions open for days or weeks. ...
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votes
2answers
105 views

How to connect a website has only IPv6 address without domain name?

If a server has only IPv6 address without domain name, how can I connect to server from my web-browser?
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1answer
30 views

IPv6 get alive hosts without ICMPv6?

How would you probe the first few ports on TCP/UDP to see the host is alive like Angryipscanner but only on ipv6?Too see if the hosts are alive without ICMPv6?I am on Windows.
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3answers
74 views

Should I use a static IP address? If so what kind?

Last night I managed to get my local PC running as a server using port 80 and my IP address. After restarting my machine it stopped working. I was told I need to make a static IP address. My ...
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0answers
60 views

Can't ping Linux IPv6 bridge from host

I'm using a Linux box with two network interfaces as bridge (br0) and one system (X) behind the bridge with its own IPv6 address configured. Its other end is connected to a router. The bridge ...
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0answers
38 views

NET_IPV4_CONF_ARP_ANNOUNCE equivalent for IPv6

I'm looking for the Neighbor Discovery Protocol (NDP) equivalent of NET_IPV4_CONF_ARP_ANNOUNCE, to be set on the linux system (2.6.24) using sysctl(). The option net.ipv4.conf.all.arp_announce is used ...
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votes
1answer
27 views

IPv6 Virtual Network in Linux

I'm going to do a project based on IPv6 Network. So I need to create a IPv6 Virtual Network in my Linux OS (I use Ubuntu). Also I need to create some virtual hosts in my virtual network and setup ...
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0answers
22 views

How to remove or delete an invalid IPv6 tunnel on Mac OS X terminal?

I've configured an IPv6 tunnel in the terminal, but it doesn't work. I tried to remove it, but I don't know how.
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3answers
62 views

How can I switch off IPv6 ND transmissions in Linux?

I am working on Ubuntu 11.04. I want to switch off the IPv6 ND transmissions. How can I do this?
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0answers
119 views

How do I change my WAN miniport (IPv6) host-id?

I've got a software licence for my laptop (Windows 7). This licence checks the host-id of my WAN miniport (IPv6). The problem is that this number changes when I restart my laptop, and the software ...
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votes
2answers
69 views

How can I access an IPv6-only host from a Windows 7 computer behind an IPv4-NAT?

I have a computer with Windows 7. It's connected to Internet via an IPv4 NAT router. How can I access a host that is only accessible with IPv6? Is there an easy way to configure the Windows 7 Teredo ...
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votes
1answer
143 views

MTU is 1500, why the first fragment length is 1496 in IPv6?

ping6 ipv6Address -s 1500 This command will result a fragment. Observed by wireshark, the 1st fragment packet's length is 1496 (from layer 3). Since the MTU is 1500, I am confused by this 1496 ...
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0answers
19 views

Windows is ignoring IPv6 RA

I have a native IPv6 connection which was working with perfectly with Windows 7. Out of the blue, Windows is no longer assigning an IPv6 address to the wireless adapter. It still works if I assign an ...
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3answers
189 views

Which Linux-based firewall supports IPv6?

Out of the box neither IPCop nor ipfire support IPv6, not even on the green interface (internal LAN). How do I add IPv6 support to one of them? If that's not possible, is there a linux-based embedded ...
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1answer
69 views

Do modems affect IPv6ness?

I have a 11year old modem. However from my knowledge it isn't giving me problems. I ran an ipv6 test I got "10/10" for for your IPv4 stability and readiness and 0/10 for IPv6. I then tried running it ...
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votes
4answers
140 views

How do I properly access Google through IPV6?

I'm trying to access Google through IPv6. However, it seems to want to send me back to IPv4! I did a DNS lookup on IPv6.google.com at http://centralops.net/co/ and found their IP, then tried this... ...
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vote
1answer
47 views

Configure IP v6 on Linux machine

I use this command to assign a site-scope IP address: $ sudo ifconfig eth0 inet6 add fee3::216:cbff:fe94:1a86/64 $ Check it with ifconfig: $ ifconfig ... eth0 Link encap:Ethernet HWaddr ...
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votes
1answer
127 views

How to configure the IPv6 address on Mac OS X 10.6?

I have automatically configured IPv6 address on my Mac OS X 10.6: $ ifconfig ... en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 ether 00:16:cb:94:1a:79 inet6 ...
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votes
2answers
208 views

Can we disable IPV4 and use purely IPV6 on Windows XP/2003?

Is there any way we can use purely IPV6 on Windows XP or Server 2003. I know an IPV4/IPV6 dual stack exists in Windows XP, I just wanted to test whether only IPV6 can be used on XP. It is possible in ...
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vote
1answer
116 views

Is an RDNSS or DHCPv6 server allowed to distribute a link-local IP address as DNS server?

And if so, how is this supposed to work? Is the client supposed to attach the interface identifier himself, based on the interface the assignment came through?
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votes
1answer
275 views

DD-WRT with native IPv6

My ISP provides native IPv6 support (ie. I can plug in my computer straight into the WAN and get an IPv6 address). However I can not get this working on DD-WRT. When I enable IPv6 and radvd in ...
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2answers
69 views

Unable to close SSHD on IPv6 TCP port

I'm running Ubuntu 10.4 and I've tried disabling IPv6 as I don't currently need it. I rand the following to disable IPv6 and then rebooted my server: echo "#disable ipv6" | sudo tee -a ...
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votes
0answers
80 views

Can't ping another Teredo client behind the same NAT

I have 2 computers that are about as similiar as they can be Both run Fedora Linux 15 x64 Both are behind the same IPv4 only NAT (my house) Both run Miredo (Teredo Tunneling) and have unique ...
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vote
1answer
60 views

Using router public IP to access another (located in WAN) router behind NAT

I have following setup: at home I have a router up and running with public ipv4 ip at my country house I have ipv4 cam and router which is behind NAT - no public ip (public ip is too expensive) both ...
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votes
2answers
74 views

Without NAT on IPv6, and only one DNS name, how do i talk to my servers?

Right now we own one domain name (e.g. superfault.com). From the internet i can connect to a variety of networked devices using that single DNS name: superfault.com ...
2
votes
1answer
155 views

Connect to a virtual machine via IPv6

On my Ubuntu 11.04 host I've installed VirtualBox with a OpenSuse 11.4 client. After installing Apache2 in the VM I was not able to connect via IPv6 (with Firefox) to the installed HTTP-server. In the ...
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vote
1answer
139 views

How to configure monowall to use TunnelBroker?

How do i configure monowall for IPv6 connectivity with Hurricane Electric's TunnelBroker.net IPv6 tunneling service? Note: i'll be answering the question myself; since this site is a wiki
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votes
0answers
273 views

How to setup pfSense 2.0 for TunnelBroker.net?

What is the procedure to create an IPv6 tunnel in pfSense 2.0? pfSense 2.0 (RC3) supports creation of a GIF tunnels: The help is pretty generic, and pretty unhelpful: In pfSense 2.0, GIF ...
3
votes
1answer
86 views

What protocol is Window's v6v4tunnel implementing?

Microsoft Windows allows the creation of an "IPv6-in-IPv4 point-to-point tunnel": >netsh interface ipv6 add v6v4tunnel "My Tunnel" 192.168.1.13 209.51.181.2 My question is: what protocol is ...
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0answers
15 views

Running in.ripng on IPv6 leaf-site?

I'm running an IPv6 tunnel endpoint (/48 from tunnelbroker.net) on a Solaris 10 machine. Now all the guides say to active in.ndpd and in.ripngd. While ndpd of course makes sense, is there really any ...
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0answers
92 views

Windows 7 64bit, great signal strength IPv4 & IPv6 can't connect

For some reason I can't connect to the internet with my wireless card (internal) on my PC, I am connected just fine on my laptop. It says my signal strength is good but both my IPv4 and IPv6 can't ...
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vote
3answers
359 views

How do I configure my Computer to use an IPv6 connection?

Ok i've just read this blog post: "Looking towards IPv6" That's why we're pleased to let you know that Google search is also available over IPv6 at ipv6.google.com (you'll need an IPv6 ...
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votes
1answer
140 views

IPv6 Tunnel via Own Linux (IPv6-connected) Server

Unfortunately, there's a lot of IPv6 tunnel brokers, and their documentation often clutters the search results for how to setup your own IPv6 tunnel. I have a Linux server with IPv6 connectivity. I ...
4
votes
1answer
103 views

When will the LIR's run out of the IPv4 addresses? [closed]

"The Asia Pacific Network Information Centre, the RIR responsible for assigning IP addresses to the region, announced the release of its last available batch of IPv4 addresses on 15 April." ...
0
votes
1answer
73 views

Issue about mapping MAC address to Ipv6 address

I know that the address in ipv6 with prefix range 001 to 111 should use a 64-bit interface identifier that follows the EUI-64 format, which translates the MAC to ipv6 as below. MAC:00-02-b3-1e-83-29 ...
2
votes
1answer
68 views

Ubuntu IPV6 support

I have a HSPA broadband modem that supports IPV6. Can I use Ubuntu Network Manager to connect using this modem with IPV6.

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