Should ipv4 and ipv6 both be enabled




















NathanLong Yes, but if you're having a problem you should hit the Ask Question button. Comments aren't really the place for new questions. Bind to both! Glen Little Glen Little 2 2 gold badges 7 7 silver badges 16 16 bronze badges.

It's not necessary to obfuscate private addresses. Though, you should also bind to your global IPv6 address so that your site can be reached externally via IPv6. Having a service accessible both internally and externally is easier when you don't use NAT.

But blindly connecting to a hostname provided by a client sounds like a design flaw. It is entirely possible for the client to send you a Host header with a domain name that doesn't belong to you. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Explaining the semiconductor shortage, and how it might end. Does ES6 make JavaScript frameworks obsolete? Featured on Meta.

Now live: A fully responsive profile. Linked 0. See more linked questions. Related 0. Hot Network Questions. Question feed. However, IPv6 tunneling can leave users vulnerable to cyber security threats like DoS attacks. In addition, hackers target IPv6 tunnel users with reflection attacks and packet injection. Of course, as this transition to IPv6 is likely to take many more years to complete, these transition methods will probably be in use for a while.

In speed tests, IPv4 and IPv6 delivered the same speed in direct connections. As a matter of fact, if anything, IPv4 was occasionally slightly quicker. However, IPv6 also has larger packets , which can make it a little slower in some cases. So if anything, IPv4 may perform slightly faster. When possible, it is better to keep both IPv4 and IPv6 addresses enabled. For example, using only IPv6 can cause some accessibility issues, as only about one third of the internet supports IPv6 addresses.

Likewise, disabling IPv6 can cause certain problems, especially if your router is already using an IPv6 address. However, you should keep IPv6 enabled even if you use an IPv4 network.

Otherwise, some Windows features like Quick Assist might not work properly. This means that your traffic would exit its secure VPN tunnel , so your traffic will no longer be completely private. This could make you susceptible to a DNS leak, which may mean your original IP address and, by extension, your location could be exposed.

This also means your internet service provider is able to monitor your online activity, thereby rendering your VPN effectively useless. But there are a few that do. The main reason IPv4 is still more widely used than IPv6 is because it takes a lot of time and resources for the transition from one to the other. And, while some companies have begun to make the switch, others have opted for the cheaper and simpler option of sticking with IPv4.

IPv4 has 4. That way, no IPv6 traffic can leak out over your standard internet connection, thereby keeping all your online activity private and secure. Not that much. With the help of dual-stack technology, some devices can run on IPv4 and IPv6 parallelly. Otherwise, it can be quite difficult to run your network on both IP address types. Using IPv6 is actually preferable when it comes to gaming. Aside from the possibility of better speeds, you no longer need to use port forwarding, as IPv6 will give your device its own public IP address.

However, you might need to contact your ISP first. The idea of IPv5 was abandoned before its full launch. If implemented, it would have faced the same problems. Your email address will not be published. Required fields are marked. If you purchase via links on our site, we may receive affiliate commissions.

What is IPv4? What is IPv6? You could use static, bi-directional mapping, but that will get out of date quickly and it doesn't scale worth a damn. And, again, I see real scaling problems as those DNS servers that do support IPv6 get constantly bombarded by address requests.

With Dual-IP stacks , your computers, routers, switches, and other devices run both protocols, but IPv6 will be the preferred protocol.

As the public Internet transitions to IPv6, your network administrators may need to deploy dual-stack capable switches on your; edges earlier.

The upside of this approach is that Dual-IP stacks are supported by all the major operating system and network vendors. The downside is that most legacy networking hardware and servers don't support IPv6.

This can lead to such problems as dual-stack edge switches running into DNS Domain Name Server problems while users are trying to get to various Internet sites. The bad news with this approach is that it will only work for specific applications. It also has the potential to slow traffic down as every packet has to be inspected to see if it needs DS-ALG services.

In tunneling, one protocol is carrying inside another. Usually, that's going to be IPv6 in IPv4. There are two kinds of tunnels: manual, aka static , and dynamic. Manually configured IPv6 tunneling requires configuration at both ends of the tunnel. The manual approach is best just for connecting say corporate IPv6 intranets over the Internet. It's not a good answer to any other IPv6 Internet problem. Dynamic tunnels use a variety of techniques to establish packet destination address and routing on the fly.

This makes them far easier to create and maintain. The most popular dynamic tunneling technique is 6to4. It has the advantage of not requiring an explicit tunnel set-up. Instead, it uses dedicated relay routers to forward encapsulated IPv6 packets over IPv4 links. To be used safely, your vendor and network engineers must be sure to set its security up carefully.



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