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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37 views

cPanel doesn't recognize IPv6 address in MySQLRemote [migrated]

I need to input my IP on cPanel's MySQLRemote list of authorized addresses, and it says is invalid. When I go to http://whatismyipaddress.com/ or run ipconfig, it shows my IP address is as below: ...
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0answers
8 views

VPN Connection: Draytek Vigor 2820 Cannot Initiate IPSEC Tunnel

I have been asked to setup a site-to-site IPSEC VPN Tunnel from a Vigor 2820 (at the client's premises) to a Cisco ASA 5505 (hosted at Rackspace). I have input all of the details that Rackspace had ...
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0answers
34 views

How does AWS convert an IPv6 address to an IPv4 address when whitelisting “My IP” address

I recently had to whitelist my IP address in an AWS security group using the "My IP" option. It worked perfectly and displayed an IPv4 address, but when I looked up my IP address with Google I got an ...
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4answers
444 views

Can we use IPv6 addresses only?

I am trying to do a project about IPv6. My first query is, can we completely disable our IPv4 address and use only our IPv6 address? My second query is, how can an IPv6-only host communicate with an ...
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0answers
27 views

no internet connection windows server 2012 setting up remote desktop connection

I'd like to setup my Windows 2012 Server so I can Remote Desktop Connection from my client (Windows 10) with the static IP that I'm going to give to the server. (So not through a site). After having ...
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0answers
35 views

Ping: General Failure

I am facing a weird issue on my laptop that only Internet Explorer can access internet no other application, not even chrome, iTunes. When I try to ping any website I get an error. When I ...
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0answers
30 views

TTL in ping reply set to 128

I'm using the ping command to ping google.com, and can't understand why am I getting TTL of 128 in the response. ping www.google.com PING www.google.com (172.217.19.196) 56(84) bytes of data. 64 ...
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1answer
845 views

What other protocols can run over the Link Layer besides IP protocol?

I am reading about ARP here and it says "Each protocol is assigned a number used in this field. IPv4 is 2048 (0x0800 in Hexa)." What are other alternatives to IPv4 and IPv6 as protocols to be run ...
3
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1answer
87 views

Translating IPv6 packets to IPv4 packets to reach a game server

I am behind a DS-Lite system and therefore have no native IPv4 address. But out of curiosity, I want to find out, if it is possible to set up a game server behind that. More precise, a counter-strike ...
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1answer
25 views

Listen to localhost messages

Suppose a TCP/IP client application has connected to a certain port on a server. Both client and server are operating on localhost. Is it possible for another application (also on localhost) to ...
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2answers
61 views

Would NAT be eliminated transformed in ipv6?

NAT is a wonderful concept used in ipv4. It is the major reason for the existence on internet, in my concerns. There are no networks in the world that doesn't work without employing NAT. All I seek ...
0
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1answer
54 views

multiple static IP address

I am trying to setup 2 external static IP address through a Arris Modem/router bridged to 2 router so I could split pc network and server network. How would I go about setting it up properly/ if it is ...
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2answers
102 views

Unable to connect to one particular FTP server

I am unable to connect to a particular FTP server at Fasthosts over my usual ISP connection, using any of Filezilla, Notepad++ or WinSCP FTP clients on either my PC or my laptop. However, I CAN ...
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0answers
19 views

PPTP VPN issue, multiple platforms

Using PPTP VPN for multiple clients, I've seen an interesting issue on Mac OSX El Capitan, and Windows 7 and 8. For clients connecting from home using a subnet that is identical to the internal subnet ...
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2answers
79 views

How to connect two locally linked computers to WIFI using IPv4 addressing?

I want to connect my laptop and another computer (which is RaspberryPi 2, but that's not very important) using a crossover cable. Then I would like to SSH from my laptop to another computer. Finally, ...
0
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1answer
38 views

My IPv4 Address automatically changes

I have Windows 8.1, For some reasons I need forward ports for my computer. (you may know that computer's IPv4 Address is necessary for it). But my computer's IPv4 address automatically changes after ...
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0answers
10 views

GNU/Linux ping: Disable timestamps

I'm using ping utility, iputils-sss20101006. The -s 100 option causes the ICMPv4 packet to have an 8-byte timestamp and 92 bytes of random data. Therefore all Echo and Echo Reply packets include an ...
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2answers
12k views

Blocked by Group Policy: trying to install TCP/IPv4 (Windows 10)

So I uninstalled Winsock and Winsock2 registry keys and now cannot connect to the internet. I am using the following walkthrough to try and reinstall Internet Protocol Version 4 (TCP/IPv4) but every ...
0
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1answer
115 views

IP Datagram Fragmentation total length and payload calculations

I do not understand how to fragment a IP datagram. Let's say the original datagram has a total size of 302 (20bytes header and 282 bytes payload). My datagram needs to be fragmented since it goes ...
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0answers
68 views

IPv4 or IPv6 for local DNS server?

I am a bit inexperiencied with networks. I have set up and dns server in a virtual machine on Debian 8 using dnsmasq. To test if it was working, I gave it only one record: www.facebook.com with ...
3
votes
1answer
79 views

IPv4 connectivity to IPv6-only host

I have a IPv6-only host (let's name it S) in my home network which is accessible from outside by its IPv6 address. Since my ISP doesn't provide any IPv4 connectivity, it cannot be accessible from IPv4 ...
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2answers
50 views

IPv4 changes by itself

My IPv4 address randomly changes by itself but I can't figure out why ? It changes from 192.168.0.10 to 192.168.0.13 and vice versa. That happens doesn't happen often but very randomly... Does ...
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2answers
3k views

How do I set a static IP address in Windows?

If I do not have access to the router / DHCP server to create a static reservation (i.e. asking the router / DHCP server to set aside a specific IP address when a certain MAC address requests it), how ...
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2answers
587 views

long delay during ssh login

When I connect to my Debian server via ssh, the ssh client tries to establish a IPv6 connection. This fails after a long timeout (~30sec), then falls back to IPv4, which then succeeds, and I'm ...
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1answer
418 views

Any way to create OpenSSL certificate request that would be valid for two IP addresses?

I have a private app running as a webserver on a machine on an isolated wifi router using 192.168.1.*/255.255.255.0, with no DNS capability & no upstream Internet; basically, only local wireless. ...
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4answers
4k views

Why does the “Internet of Things” enforce the need for IPv6 addresses?

If you have multiple devices in one network, the amount of IPv4 addresses will not increase linearly to accomodate the number of devices. There is just one IPv4 address per Network/Router that is ...
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1answer
407 views

PC sends repeated ARP requests to Default Gateway

CONTEXT: My machine, for whatever reason, is flooding the network with ARP requests. A downstream switch sees this as malicious and cuts my connection. I've narrowed it down to one of the dozen or ...
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2answers
3k views

Can a domain name have both IP addresses (IPv6 and IPv4)?

Can a domain name (example.com) have both the IP addresses, IPv6 and IPv4? Which IP address does a domain name have? IPv6 or IPv4? But I am not sure that it has both or any one at a time.
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1answer
315 views

Network Interface starts without IPV4

When I boot some RHEL 6.5 server, the NIC shows an IPV6 address but no IPV4 on ifconfig However, if I ifdown + ifup it, it gets its IPV4 address (via DHCP). For clarity, is is enabled on boot via ...
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0answers
299 views

Assign static IPv4 to specific MAC address

I am trying to assign same IPv4 to few devices every time they connect to wi-fi AP. I use Zyxel NWA3560-N. I think that there should be option to set static IP on every device and block assigning ...
2
votes
1answer
294 views

Shortcut to change IPv4 properties

I am looking for simple ways to change IPv4 properties of one of my networks and actually I can't find anything promising, just something about netsh. But I think there should be way to create a .bat ...
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2answers
79 views

I'm trying to open query.yahooapis.com but curl is trying to use IPV6 even if I only have IPV4 enabled

When I try to call query.yahooapis.com with curl it's trying to use the ipv6 address but IPV6 is disabled on my computer $ curl -v 'http://query.yahooapis.com/' * Hostname was NOT found in DNS cache ...
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2answers
473 views

Accessing an IPv6 server with an IPv4 address?

I have a server (Mac OS X 10.11) machine at home which exposes various services via web interfaces. I would like to access these from outside my own network. My ISP does not provide IPv4 addresses and ...
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1answer
152 views

How can my personal ISP connection return two public IP addresses?

I want to play a game (Wildstar) but each time I login, it gives me an “invalid login token” error. After looking into the issue, I found that it was caused by, according to Wildstar: WHAT DOES IT ...
0
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1answer
210 views

Access IPv6 home server remotely (also from IPv4 networks)

I have an ISP that uses IPv6 and I want to set up a home server running windows server 2012 essentials and access it remotely using the remote web access feature. is this feature capable of IPv6? and ...
0
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1answer
459 views

Access IPv6 server via IPv4 tunnel?

I am an installer for an ISP here in Alberta Canada. They recently launched LTE but are doing double NAT on IPv4 so accessing a server from the outside world isn't possible via IPv4. They do however ...
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0answers
380 views

Just upgraded to HughesNet Gen4. Have IPv6 access but not IPv4 access on my wired network.

We just upgraded to HughesNet Gen 4. Now our wired network only works partially. We can access wireless (which runs through our wired switch). The Wired network says IPv4: No Internet Access. IPv6: ...
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0answers
168 views

windows 7 prefer ipv4 over ipv6

I have ATT Uverse for my internet. A few months ago we had problems and they installed a new router. All of a sudden google and facebook are using ipv6 and are getting horrible performance, they ...
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1answer
273 views

ssh from IPv4 to IPv6

I have been trying to reach, using ssh, an IPv6 server from a IPv4 (only) client, but am having no success. Both systems run ubuntu 12.04. I am aware that ipv4 and ipv6 are different protocols and ...
2
votes
1answer
163 views

Properly setup a DNS Fallback

My country just ordered the Internet Access Providers to blacklist some domain names from their respective DNS (i.e. responding to t411.io by 127.0.0.1). To get over this restriction is fairly ...
105
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4answers
15k views

What's the difference between 127.0.0.1 and 0.0.0.0?

I understand that 127.0.0.1 points to localhost, and so does 0.0.0.0 (correct me if I'm wrong). So, what's the difference between 127.0.0.1 and 0.0.0.0?
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1answer
319 views

Access IPv6 computer from IPv4-only network. Is it possible?

I recently changed from an ADSL 10 MB to a GPON 40 MB and since then I'm having a bad headache. My old ISP (ADSL) gave me always a valid public IPv4. Sometimes it changed but there was no problem ...
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0answers
115 views

directed subnet broadcasts with openwrt

I've got a wireless router with openwrt 14.07 that acts as a router (not a bridge) between the local ethernet subnet (eg. 192.168.1.0/24) and a wireless network (eg. 192.168.2.0/24). I would like to ...
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0answers
39 views

ipv4tov6 address translation in windows7

I have a windows7 PC connected to a IPv6 network. On the PC I have an application that needs to communicate with another IPv6 machine. The application can only be configured with an IPv4 address. Is ...
0
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3answers
220 views

Leading zeros in IPv4 address; is that a no-no by convention or standard?

I teach a class on a software product my company makes and I find that students frequently add leading zeros to a configuration page to have the software connect to our hardware. Leading zeros are ...
0
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1answer
100 views

Ipv4 properties tab greyed out

I am facing this problem of IPv4 and IPv6 properties tabs greyed out and not able to change the settings of the same. I have tried many solutions given online such as netsh commands and antivirus and ...
2
votes
1answer
459 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 ...
0
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3answers
79 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
14 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, ...
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0answers
172 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 ...