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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1answer
44 views

Can't added back my client for microsoft networks in Windows 10

I can't open network shared folders. Got to looking at my NIC properties, and I found that I was missing everything buy IPv4 and IPv6. So I started to try to add back to client, and protocol. I can't ...
1
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1answer
460 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 ...
0
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3answers
52 views

Static IP without a static IP

I need my network to have an external facing IP address that is static. My ISP will not provide me with one. I know I can use use DDNS to achieve this in a way. I want to setup an Exchange server ...
1
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1answer
9 views

Port restrictions and MACs

I have a question regarding connections within a university setting. In my room I have two network points. One for my pc and one for my voip phone. Each network port is restricted to one mac address, ...
3
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2answers
1k views

How to get network ip address via windows command prompt?

How to get network ip address via windows command prompt? I know tat ipconfig /all shows ip configuration, but what about having just ipv4 adress?
0
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0answers
72 views

Nslookup works but ping fails

I've recently ran into this weird problem where the domain names fail to resolve from DNS. When I try to ping google.com, I get ping request could not find host google.com, but nslookup returns the ...
13
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1answer
34k 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 ...
0
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2answers
1k views

Dynamic DNS for both IPv4 and IPv6 (using freedns.afraid.org or others)

I want to set up dynamic DNS on my Fritz!Box 7490, so that it is reachable both on IPv4 and IPv6. Note that I want to reach the Fritz!Box itself, and not a computer behind it. The scenario is that I ...
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5answers
1k views

What is the difference between 127.0.0.1 and my assigned IPv4 address?

I read here that: 127.0.0.1 is the IP (IPv4) address of your local computer, synonymous with localhost. When I run the command ipconfig what I actually see is some other IP address. So I’ve ...
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0answers
37 views

Disabling IPv6 DNS resolution on client only to a specific domain

I have a Windows 8.1 machine, from which I want to connect to my company's extranet. However, I can't connect to it from my domain-joined laptop when it's at home, though I can from a work, or a ...
16
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9answers
120k 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 ...
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3answers
11k 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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2answers
5k views

Unable to ping broadcast address

Host address: 192.168.0.13 Network: 192.168.0.0 255.255.255.0 Router: Cisco DPC3825 DOCSIS 3.0 Gateway (user manual) My home network uses the 192.168.0.0 /24 network for my (mostly wireless) ...
6
votes
1answer
4k 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 ...
0
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3answers
99 views

How do I find the IPv4 address of a computer on my Macintosh Wi-Fi network?

Is there any way to find the IPv4 address of a certain computer on my Macintosh Wi-Fi network? I know the computer name and such, so how can I use this to pinpoint which IP is theirs?
0
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0answers
38 views

Make socat listen on both IPv4 and IPv6 stacks

Switched providers the other day, they only assign DSlite-connections. I'm fine, I thought. Thing is - I want to access some of my stuff from outside of my network, which should be of much less a ...
1
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5answers
16k 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 ...
0
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1answer
30 views

Using DNS to forward to a specific local address and port?

Im running a server on a local address, a raspberry pi at x.x.x.111:64738. I own a domain, mydomain.nu. I want to create a subdomain (the hosting provides a cPanel interface) and forward it to my ...
2
votes
1answer
4k 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
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2answers
73 views

How to extend ipv4 addresses to 64 bit? [closed]

I know that ipv4 addresses are 32 bits. But is it possible to extend the ipv4 addresses to 64 bit from 32 bit?
0
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1answer
66 views

Timeout on Specific IP Address

I'm thomas and I have a weird Problem with my Network/Internet Connection: It's one specific IP(85.10.200.167) I'm unable to connect to. The IP is public in the Internet and works well for many ...
3
votes
3answers
368 views

Is an openVPN with ipv6 more secure than PPTP VPN with ipv4?

I have heard that using ipv6 in combination with a PPTP vpn can expose your true ip address, so I have been using a PPTP VPN with ipv4 for the past few months. I am considering switching to an openVPN ...
0
votes
1answer
88 views

How Duplicate address is detected in lan for ipv4 networks

If i have two pc's connected to a switch , and i statically configure the same ip address on both the pc's, then how the pc's come to know that there is a address conflict (duplicate address) on the ...
3
votes
1answer
9k views

Optimal setting for advanced parameters for Realtek PCI-e GBE family network card

superusers. I am trying to get the best possible setting for my Realtek PCI-e GBE family controller network card so that when it will be literally minimal or zero lag when playing online game. ...
0
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3answers
50 views

No internet when cable is connected directly to pc

I have a router with static settings in it, my computer is connected to that router, I want to remove that router and connect my PC directly to the internet, I went to the ipv4 settings in network and ...
0
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1answer
55 views

IPv4 interface number

I came across a question in Self Test Software for MS Exam 70-642 Which command adds route to destination server, with IP address 10.51.0.0 and subnet mask of 255.255.0.0. Next hop should be ...
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3answers
6k 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?
0
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0answers
125 views

Default Gateway address for multiple VPN users/clients

We need some help with a VPN setup for a school project. What we want to do: We would like to have approx. 10 different VPN uses that can connect to our Windows Server 2012 R2 which is setup as a ...
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votes
1answer
57 views

Are IPv4 and IPv6 incompatible? [closed]

Are IPv4 and IPv6 incompatible? Can they be perceived as 2 different internet layer protocols? If yes, what are the significant differences which make them incompatible?
0
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1answer
168 views

Windows 7 Home Premium cannot connect to internet via wireless or ethernet connections

I have an HP laptop and I cannot connect to the internet even though it says "Internet Access". When I try I get "Cannot access page", then the browser closes and searches for a solution that results ...
1
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1answer
57 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 ...
2
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1answer
891 views

static IP outside of subnet range

I have two questions, but let me explain the situation first. They are about the (static) IP address of a printer attached to the network. We had this networking setup, using a normal consumer router ...
0
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1answer
3k 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
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1answer
37 views

Why doesn’t Windows Vista get an address from the DHCP server?

My Windows Vista PC does not get an IPv4 address from the DHCP server; viewing the network properties shows something (likely the DHCP request) being sent, but no packets being received. Manually ...
0
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1answer
34 views

Disable autoconfiguration of new network interface on Linux desktop

I am running Ubuntu Linux (desktop) and whenever I insert an external network card to my computer, it automatically creates a new interface (that is okay) but also instantly giving the interface an IP ...
1
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2answers
82 views

Definition of 'send_redirect' in Linux IPv4 context

I've encountered these two lines in a script: echo "1" > /proc/sys/net/ipv4/ip_forward/ echo "0" > /proc/sys/net/ipv4/conf/eth0/send_redirects The first line switches on ip forwarding, which ...
0
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0answers
490 views

CentOS 7 can't get IPv4 address from DHCP server

I have classroom full of computer running CentOS 7 and only one computer can't get IPv4 address from DHCP server during boot, because NIC is not yet up, when dhcp client tries to get IPv4 address from ...
6
votes
2answers
6k views

Why does “ipconfig”not work in my windows 8 elevated command prompt? [duplicate]

Im needing to find my ipv4 address to make a server because my old one was on windows 7 then i upgraded to windows 8, which i now regret because i cant find my computers ipv4 address when i type ...
0
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0answers
91 views

ISP Causes for huge packet loss to gateway

I have an office router with a static IP address (i.e. 208.55.14.1/30), connected to the ISP gateway (i.e. 208.55.14.2) via ethernet. The setup has worked perfectly for other a month, today i started ...
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votes
2answers
880 views

Comcast Speed test slower performance on the IPv4 test than on the IPv6 Test

I have two computers. On one I get the same performance result for both IPv4 and IPv6. On the other I get slower (about 50%) on IPv4 than on IPv6. Why? Is there a config to change it?
8
votes
4answers
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 ...
0
votes
2answers
86 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 ...
3
votes
2answers
54k 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 ...
0
votes
0answers
35 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
799 views

Cant ping to computer but reverse ping can

So Computer 1 can ping to computer 2 but reverse it can't Setup : router A (192.168.0.xxx) 255.255.255.0 > Router B (192.168.1.xxx) 255.255.255.0 So computer1 on Router B can ping to computer2 on ...
2
votes
1answer
94 views

Limit on hops in IPv4 and IPv6

I was reading IPv4, and in it it specifies time to live, aka TTL or "max hops" in IPv6 since this is what it really represents. My concern is that this value is 8 bits, thus has a max value of 255, ...
0
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3answers
5k views

How can I permanently save my chosen DNS settings for my wireless network adapter on Windows 7?

I use a custom DNS but I find myself needing to reconfigure it every time I connect, is there a way to save it permanently?
1
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0answers
2k views

No DNS requests in Windows 7, nslookup works, ping and tracert can't resolve

I was trying to bring my old desktop computer back from the dead and faced a problem I couldn't deal with. The main issue is what I've written in the title - nslookup works, ping and tracert give a ...
0
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2answers
223 views

Two IPv4 adapters in same PC on same network valid?

Is it valid to have two network adapters on the same PC have the same network portion in their IPv4 address? If not why is my DHCP server doing so and how should I setup my DHCP server to have it ...
0
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0answers
77 views

Dilemma about how my wireless devices obtain IP address

Currently in my network there are 7 wireless outdoor equipment and 1 switch . This switch act as backbone switch for my network as internet supply from ISP is connected to this switch. Through this ...