Refers to the 4th revision of the Internet Protocol, where addresses are usually displayed in the form: 192.0.2.235

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-1
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2answers
352 views

IPv4 address changes automatically

I run a website on my computer using XAMP. It runs on port 8888, when I configure the port I need complete this ip: 10.0.0._ to my IPV4 which is 10.0.0.4 right now. I don't know why but my IPV4 is ...
0
votes
1answer
589 views

OpenVPN 4in6 or 4over6 tunnel

My ISP sucks. It gives me an IPv6 Address and an IPv4 one, but IPv4 is down 50% of the time (I can't access any IPv4 Services every 10 minutes)... As I already have an OpenVPN Server set up, I asked ...
0
votes
2answers
128 views

Network Redirect off subnet for Synergy in hosts file

Perhaps I'm off the right track here, but I'll describe what I'm trying to do first generalized and then why I want to do it. General Case I'm looking to redirect a specific IP address on a single ...
0
votes
1answer
433 views

How to set up a IPv6 to IPv4 gateway for VPS [closed]

Condition IPv6 and IPv4 enabled VPS IPv6 and IPv4 enabled Client(Could be PC or Mac) Problem Client get restricted IPv4 connection whereas IPv6 connection is unlimited. Solution Client connects ...
0
votes
1answer
287 views

Is it possible to configure a static IP alternative for all adapters using the registry?

I was reading the alternative configuration documentation, and thought I'd try to setup a fallback static IP to simplify my setup: ...
1
vote
1answer
103 views

In tspc ipv6 tunnelling, does tunnel broker required for ipv4 to ipv4 communication?

I am new in embedded systems and trying to add support the ipv6 network availability in my new product but I have understood that, First of all, My system is connected to IPv4 ISP and I want to ...
0
votes
2answers
987 views

Local DNS server is required to use names instead of full IP?

My computers have local IP addresses such as 192.168.0.X. And many of the computers have names such as "MyPC" or "YourPC" etc. It seems on Windows, in most cases, just using "MyPC" instead of the ...
1
vote
0answers
319 views

Why is my computer suddenly using NBNS instead of DNS?

I have a Windows 7 laptop which I regularly use to access wireless internet when traveling. Normally, everything connects and functions as expected, but as of 4 days ago, I have noticed that I am ...
0
votes
1answer
186 views

One public IP for dedicated server - a few VPS with the same IP?

I bought a dedicated server. To him I got a single public IPv4 address. On this dedicated server I installed the latest version of VMware ESXi hypervisor. With the help of the hypervisor, I plan to ...
3
votes
2answers
380 views

Why can I ping 127.1?

I know IPv6 allows consecutive zeros to be omitted. But how about IPv4? I haven't found any reference to this on the Internet, including Wikipedia and RFC 791 – Internet Protocol. This document ...
4
votes
1answer
158 views

Get IPv6 address of an IPv4 machine?

Given two machines on a local network, both connected via IPv4 and IPv6, can machine A get the IPv6 of machine B if it has machine B's IPv4 address? I presume the ARP cache should be able to provide ...
0
votes
1answer
2k views

How to configure Gateway as Proxy Server

In my office environment, my machine is configured with an IP address, Subnet Mask and a Default Gateway. The Default Gateway does not allow internet connectivity but is configured to provide us with ...
37
votes
8answers
6k views

Why do ISPs change your IP address?

Is there any specific reason an ISP will need to change your IP address? What is the purpose of a dynamic IP versus a static IP? For me it seems to happen every 6 months, while for someone I know, it ...
-2
votes
2answers
110 views

How to Get the size of IPv6 header? [closed]

I know there is IHL field in IPV4 which is Internet Header Length.Since an IPv4 header may contain a variable number of options, this field specifies the size of the header. But there is no IHL or ...
9
votes
4answers
665 views

How to put two subnets next to each other?

I've been using this calculator http://www.subnet-calculator.com/cidr.php, and I'm trying to figure out how to put two different subnets next to each other. For example, I want to have a /27 subnet ...
3
votes
1answer
214 views

From where does IP geographical location data come?

I don't understand how some sites (e.g. https://www.ultratools.com/tools/geoIpResult) show country and town for an IP address. For example 193.45.10.135: Continent: Europe Country: Germany Country ...
3
votes
2answers
39k views

Install Internet Protocol Version 4 (TCP/IPv4) on Windows 7

I can not explain what has happened, just suddenly I lost my internet connection. On local area connection properties IPv4 is not installed, my ISP says that they only support IPv4. Then I must had it ...
1
vote
1answer
2k views

6to4 vs ISATAP vs Teredo Adapters

I understand that all three adapters mentioned in the title are related to transitioning IPv4 to IPv6. ISATAP: Transmits IPv6 packets between dual-stack nodes on top of an IPv4 network. Teredo: IPv6 ...
0
votes
1answer
2k views

IPV4 Lan 2 IPs remove 169.254.* from nic

When I ipconfig: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : IPv4 Address. . . . . . . . . . . : 172.30.2.194 Subnet Mask . . . . . . . . . . . : 255.255.255.0 IPv4 ...
0
votes
4answers
9k views

How can I figure out what IPv6 to use if I want to set a static IP for my computer?

I recently installed Windows Server 2012 on my desktop. I changed my connection settings to hardcode my internal IP address as 192.168.0.99 (IPv4). Windows Server 2012 warned me that I should also set ...
1
vote
1answer
700 views

IP, Gateway and DNS changer [.bat Win7]

I have a batch file that I use on my WinXP SP3 (I found it on the net and it worked). SWiTCH TO CONNECTION 1 @ECHO OFF set varip=192.168.0.118 set varsm=255.255.255.0 set vargw=192.168.0.1 set ...
5
votes
1answer
211 views

Is there a way to test alternate IPv4 routes?

i am using Hurricane Electric's Tunnel Broker service to get IPv6 connectivity. TunnelBroker lets you have access to the IPv6 Internet by using a standard IPv6 tunneling protocol. You send IPv6 ...
0
votes
1answer
140 views

Connect to a ipv4 site with ipv6

Is there a way to connect to a ipv4 website using an ipv6 proxy? cause I have vps that only has ipv6 so I want to setup a proxy server using ipv6 only but want to connect to ipv4 websites
4
votes
1answer
209 views

How to block a program from using IPv4?

I have a program that can communicate over IPv4 (TCP and UDP) and over IPv6 (TCP and UDP). I want to block the program from being able to use IPv4. I tried the Windows Firewall: Except it blocks ...
1
vote
1answer
957 views

How do I access IPV6 from IPV4?

I have been searching for a long time ipv4 to ipv6 proxy program but i nothing found... Currently i have IPv4 address however i would like to try IPv6 address. Is there a simple solution for IPV6 ...
6
votes
3answers
1k views

4in6 tunneling (via OpenVPN?)

I have a local network with internet access. But unfortunately IPv4 internet connection speed is limited to 1mbps, which is realy sad. Fortunately I have a native IPv6, and there is no connection ...
2
votes
1answer
368 views

Prefer IPv6 over IPv4 in Windows Server 2003

I am running Windows server 2003 and my Firefox browser keeps using IPv4 instead of IPv6. Well at least http://ipv6-test.com/ says that my browser uses IPv4. How can I force it to prefer IPv6 over ...
3
votes
1answer
263 views

Can I prioritize IPv6 traffic over IPv4 traffic on Linux?

Is there a way I can give traffic over IPv6 a higher priority than traffic over IPv4? Purpose is 2-fold: Promote IPv6, and be able to connect even when my server is swamped by IPv4 users.
0
votes
1answer
66 views

ipv4 zeroconf dnssd ip adresses after reboot

If you have a network and some devices with valid ips configured by either ipv4 local link, apipa, dnssd or zeroconf if you do reboot one of them. Does the rebooted device get the same ip as before ...
7
votes
1answer
2k views

Is there any reason to subnet a home network?

For networks I understand we set a netmask on each computer to let it know what IPs it can talk to without going through the router - IPs on the same subnet can talk directly to each other and do not ...
1
vote
2answers
357 views

How to find the network address of a given subnet?

How do I find the x th subnet of X.X.X.X /XX (300 th subnet of 172.16.0.0 /29)?
1
vote
1answer
5k views

Windows 7 ipv4 autoconfiguration - cannot connect to internet

I get my internet connection from a guy (lets call him my service provider henceforth). He gives internet connections to many students here in my hostel. My PC gets a private IP through his DHCP ...
1
vote
1answer
117 views

IP Routes - Route Mapping

I've been reading up on static routes and such while studying for my next MS exam, and am wondering - in CMD, if you do a route print -4 you get a Active Route Output such like this: Destination ...
12
votes
2answers
2k views

What about IPv4 class E?

IPv4's class E network (240.0.0.0/4) contains 268 million addresses. Despite the advertisements for IPv6, claiming we have ran out of address space, this block ironically still claims to be "Reserved ...
9
votes
1answer
19k views

How to force Java to use IPv4 instead IPv6?

My Java browser plug-in is no longer working. When I open a page that has a Java element, Java cannot connect to the server. After investigation, I found that Java was trying to use IPv6, while my ...
1
vote
0answers
36 views

IPv4 Considerations for a Cloud-based future [closed]

I'm re-doing a small company's IP scheme / netdesign for their LAN. They are growing fast, with many branch offices opening soon. It's a mostly flat 192.168.1.x/24-ish out-of-the-box network. There ...
1
vote
1answer
496 views

strange characters in DNS Suffix

I have some strange characters in my DNS Suffix. I have removed these strings from registry and attempted to fix this in many other ways. Does anyone here have an idea of what I could do to fix this. ...
1
vote
0answers
667 views

IPv4 not enabled in Windows 7

I have a Netbook with Win 7 Starter edition. I am not able to get IPv4 enabled/installed in the Netbook and hence not able to network/connect to Internet. It says "Limited access" when I check ...
5
votes
1answer
1k views

IPv4, IPv6 and IPTables

I have just recently learned that even if I block all traffic to my webserver using iptables it is still vulnerable to external attacks via IPv6. In my understanding, this renders iptables-only ...
13
votes
8answers
75k views

Why do I get “General Failure” when pinging host name on a Win 7 node on the network?

This is a very peculiar problem with a station on our network. The client pc is running Windows 7 Pro. What makes this problem interesting is that this client is the only node on the network that ...
7
votes
4answers
2k views

Does disabling IPv6 decrease my surface area of attack and increase performance?

I have colleague that is on this whole kick of disabling IPv6 while leaving IPv4 on each new machine that comes in before deploying in our environment. He takes his personal anecdotal evidence and ...
0
votes
3answers
404 views

Since IPv6 has larger addresses than IPv4, how will that affect performance?

IPv4 are 32 bit addresses, while IPv6 are 128 bit. It's 4 times larger, sure on a small scale maybe not a big difference, but on a world wide scale will it make a difference? Are their any messures ...
7
votes
2answers
5k views

How do client applications know to use IPv4 or IPv6?

How do servers/computers/users/applications know to request a resource over the Internet with an IPv6 address vs. and IPv4 address?
-1
votes
1answer
252 views

I can not see ipv4 and http, I can just see ipv6 and SSDP [closed]

I have a real huge problem, when I am connected through the wireless of my university, I can just see adresses like this : 1823731 14856.287768 fe80::74b6:2d79:4343:41e1 ff02::c SSDP ...
2
votes
2answers
568 views

How does CIDR slow the exhaustion of IPv4?

In the Wikipedia article on CIDR, it says The Internet Engineering Task Force introduced CIDR in 1993 to replace the previous addressing architecture of classful network design in the ...
1
vote
1answer
325 views

What are the equivalent IPV6 versions of IPV4 special-use adresses?

I'm trying to make a private network with 5 computers bellow an external ADSL router with NAT, but internally I want to use IPV6. To do this I need to use private special-use IPV6 addresses, such as ...
1
vote
1answer
675 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, ...
1
vote
2answers
955 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 ...
1
vote
2answers
9k 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 ...
0
votes
1answer
52 views

Obtaining Iptables info using a script

I have an iptables rule and I have to write a script that gets the numbers of packets and bytes target for that rule. I know that that command iptables -L -v -x shows that info, but I don't know how ...