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The U.S. cable network operator Comcast is beginning to convert its normal customer networks to the new version of the Internet Protocol. This makes the company arguably the first major Internet provider to broadly integrate IPv6 into its production … more… data transfer, server rack, ipv6, internet protocol v6 Dave Habben

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Post a comment now Shouldn’t IPv6 also be offered (broadly) by Telekom this year? @zivilist: I assumed that too. Still have a few weeks :-/ @zivilist: The relevant question for consumers is: will the Abmahn rip-off scam with IPv6 continue to degenerate as before? @firehorse: What do you mean? @wolle_berlin: Until now the customers of the ISPs had IPv4 addresses. These were not bound to the computer itself. They changed constantly. Stayed the same for the normal customer only for a short time. (With IPv6, however, it is possible to bind the IPv6 address to the individual computer and to assign this IPv6 combination to the individual customer for years. Windy Abmahn rip-off artists and other criminal vermin will pounce on this like vultures. That is as sure as the Amen in the church. @Feuerpferd: Just because a fixed IP for normal end customers would be possible with IPv6, it is not so that one could conclude from the IP more simply on the end customer. The ISP still has to be sued for the name. Of course it would be possible to write all people who have ever been “unmasked” into a list etc.. But ISPs have already assured that IP addresses will continue to be distributed dynamically on dial-up under IPv6 (unless the customer wants a fixed one). @2-HOT-4-TV: Especially the Telekom works together with the rip-off artists. See: http://is.gd/URq8lp (page 14 in PDF) So if you are still with Telekom or its resellers, you better think hard. Already the statistics with IPv4 status looks threatening for Telekom customers. I would not believe any promises with the already existing facts regarding Telekom and their resellers. @Feuerpferd: Once what 2-HOT-4-TV says and in addition Windows itself always gets new IPs. @wolle_berlin: “… in addition to that Windows itself always gets new IPs.” ==> http://is.gd/ye897N @Feuerpferd: Didn’t get to the right choice of words, but it was still right http://alturl.com/8zz8y @wolle_berlin: Of course I set the net.inet6.ip6 sysctls long ago, for security. However, IPv4 is more secure for the internet provider because of the shortage of addresses and the constant change of IPs. At least with my provider it is so. Because he respects the Bundesverfassungsgricht and the storage ban. So attackers run into the void. If I cared about providing server services I could also get a static address. However, I already know the consequences of static IP from my own experience a decade ago, lots of attackers constantly nagging around. @firehorse: Which program do you use to monitor the attackers? With Windows you don’t need to set anything. But with the oh so secure OSX already, the same applies to Android and iOS. Lon at this point to MS!!! @wolle_berlin: With on-board tool of the operating system. Is nice though, that it is not last necessarily introduced. But I myself will continue to V4 as long as it is possible. @iSUCK: Because one is in the age often against new technologies also if these are better @-adrian-: One notices the toddler-like also still to you. The time comes my dear πŸ˜‰ @Anns: The infantile:) Advantageous in the technology field. Because at work I am already a big one πŸ™‚ @-adrian-: I am open to new technologies. However, with caution. I don’t switch to something that brings factually zero advantages. And ipv6 is not a technology for the sake of advantage but just a switch because v4 has reached its limits. Like longer phone numbers when you prefer the shorter one. @Anns: That’s exactly how it looks. And I’m not keen on a fixed, personal, lifelong IP address, which would be possible with IPV6 without any problems. EDIT: Refers to [re:11] @iSUCK: There is no advantage in IPV6 for me. The internet is not faster and a v4 IP is easier to write down if you want to remote. @Anns: just the much better localhost address is advantage enough @Anns: “if you want to remote”: ever heard of Dyndns & Co. ? there you don’t have to remember (almost) anything πŸ™‚ @iSUCK: As a private person? I don’t want to buy a new router. @mschatz: The router is normally provided by your ISP or you can get it for a reasonable fee. The whole thing is that of course you do not need it TODAY yet mandatory. Only when the shit hits the fan, the prices for routers and other hardware will increase enormously. Therefore better now as long as there is still capacity in the v4 network and not only when it’s already too late and you have to pay extortionate prices πŸ™‚ @iSUCK: a fee is never appropriate. As far as I know, the ISPs are already routing internally with v6. This is typical DE. Throw away something that works and buy something new that is not yet supported. If my D-Link from 2005 breaks down, then I will certainly buy one that supports v6. @mschatz: aha as I said I will choose the cheap way and stock up in time. you can then gladly pay the triple price at 5 to 12. @Anns: Doesn’t make much sense at the moment with the few handfuls of sites that support IPv6. @Anns: I see it the same way. There is currently no reason for private users to switch to IPV6 on the LAN. What happens in the WAN area is detached from this. The routers will take care of that later anyway. @Frankenheimer: Where then also again thick Reibach is made. Everyone can buy a new router. @Anns: I mean (and hope) that for example the relatively common AVM Fritzboxes from 7270 can be made IPV6 capable by firmware upgrade. I also can’t really imagine that the providers will leave the customers in the lurch in this respect, after all the market is highly competitive. What would happen if the Telekom says yes then buy us a router for 200€ but 1&1 or others at the same time say “come to us” IPV6 router for free. @Frankenheimer: Of course they can. But do they want to? It is much more lucrative for AVM to say that everyone should buy new ones. @Frankenheimer: My FRITZ!Box Fon WLAN 7570 got an update with IPv6 and many other updates 2-3 months ago. Maybe that means that your box no longer gets an update, if you still have nothing? @Frankenheimer: You can assume that it still comes to an increased sale of IPV6 fΓ€igen routers. not everyone changes and gets on top of it a router for free! The times where the routers are distributed like cameos are over. Even 1&1 no longer gives the top model without additional costs, even if the current model to the DSL contract is IPV6 capable. Many end customers are not even aware of the change, let alone that they have heard of IP! The HardwΓ€re manufacturers rub themselves now already the hands! @Anns: So some routers can then also by a firmware update. For example my Fritz Box. Even if it is not official (yet). I would also like to start to think completely in ipv6. but I can not even remember the ips ^^ already starts at the private room @-adrian-: the trick is called dns, IPv6 addresses you also no longer remember, you do today already with IPv4 rarely. @Jon02: Well there is with ipv6 also nen trick… have him but forgotten F2FF::: or so ^^ UPC (Austria) is also already there. From 2012 it should be actually ready @Ludacris: The speech was yes from groesser provider:P @-adrian-: Don’t be so mean πŸ˜€ @-adrian-: Ahem, UPC Austria belongs to Liberty Global, the largest broadband cable operator outside the US (Wikipedia). If you don’t have a clue… πŸ˜‰ @moribund: But we are not talking about the parent company here, but about the provider UPC in Austria. Or has Liberty Global completely changed over? @-adrian-: “Liberty Global/UPC will start implementing in 2011 and will be done in 2012” (Source: http://support.upc.ie/app/answers/detail/a_id/340/~/ipv6) I am also a UPC Austria customer πŸ™‚ who formulates such paragraphs? “In a first phase, IPv6 will be used for Internet connections at end customers where a computer is directly connected to the cable modem. The second step will be to convert entire home networks to the new Internet protocol. “In the U.S., the IPv4 addresses are still 1-2 years longer than here and here has not yet done a big company what. what is the provider interested in the home network? the IPs are but “disguised” by the router – but I do not want to know how much electronic waste by the conversion πŸ™‚ @DRMfan^^: With IPv6 the home network falls away. NAT is no longer needed. There are with IPv6 global IPs, which refer to the Mac address (quasi this is a kind of serial number of the network card) this global unique IPv6 is generated after RFC 2462. In principle these whole housewife routers become superfluous, which had to make so far NAT because of IPv4. With IPv6, the devices are directly connected to the Internet without NAT. For attackers of all kinds, this opens up far-reaching and diverse possibilities. This will keep us busy for years to come. @firehorse: I am aware of that. One more reason (apart from config effort) to stay with NAT. then just behind an IPv6 address. @DRMfan^^: great idea…now you have enough IP addresses for all computers and still some don’t want to discard your (beloved?) crutch NAT. This is stupid. A decent firewall and PrivacyFlag (automatically set in Windows) and you have nothing to fear. The router firewall and the Windows integrated firewall protect against attacks as well as NAT does or even better. NAT is not a “protection” technique but a necessary evil to delay the IPv4 lack. No computer will be reachable directly, you have to forward / release ports even without NAT. @Nero FX: And? what does it matter to anyone how many devices I run? What if outdated systems are in the network – directly connected they immediately have a worm or similar on it. (and now don’t say “update then”… bring Windows 7 to a few 100 Mhz….) tell me, what is so bad? A port forwarding is set up in no time, what’s the problem? In the desktop/router firewall you have to do the same…. What exactly does the PrivacyFlag do? Choose and use a random number instead of the MAC when connecting for the first time? Quote “It makes them the first major Internet provider to begin rolling out the technology widely.” Hmm I’m just imagining someone with a rolling pin “rolling out” IPv6 protocols on the kitchen table “broadly”. “As a second step, they then foresee converting entire home networks to the new Internet protocol as well. “hmm, even the “old” Fritzbox 7270 is scon v6 compatible, isn’t it ? so, where is the problem ?? can jmd explain this ?

What is CGNAT (Carrier Grade NAT) ?

Carrier-Grade NAT, also known as Large-Scale NAT, is a type of Network Address Translation used in IPv4 networks. In IPv4 networks, which are the last remaining bastion of home computers running Windows XP and ISPs that support them, CGNAT provides a transition method that can extend the life of global addresses while allowing organizations to continue offering private Domain Name Services (DNS).

Why does Xfinity use CGNAT?

ISPs like Xfinity that want to continue using their current IPv4 infrastructure and offer services to customers using the IPv6 protocol can use CGNAT, which allows multiple users on an IPv4 network to share a single public IP address. This means that each user is assigned a private IP and translated to a public IP when they connect to the Internet.

How do I know I am on the CGNAT network?

To find out if you are on a CGNAT network, you can visit the following websites and compare the listed IP address to the public/WAN IP address assigned to your Internet gateway.

  • www.ipaddress.com
  • www.whatismyip.com
  • www.ip2location.com

You can find your public IP address by going to the status page in your Xfinity router’s management menu. If the two IP addresses are different, you are probably on an Xfinity CGNAT network.

Why is port forwarding an issue with Xfinity CGNAT?

Port forwarding can be troublesome when it comes to the Xfinity CGNAT network. This is because Comcast owns your public IP and does not allow you to add ports to your modem/router that they assign to you. If you want port forwarding to work, there is no other option but to lease either a static or dynamic public IP so you can add incoming ports on your device! Also, opening ports means sending additional traffic to users who are on a connected network with the same IP address, which leads to complications.

How do I set up port forwarding behind Xfinity CGNAT?

Normally, port forwarding is done through your home network or cable/DSL router if you want to bypass NAT or Internet connection firewalls. However, this is not possible with Xfinity’s CGNAT, as Comcast will apply all NAT rules on their end instead, so you won’t be able to play multiplayer games like Xbox Live! Also, you will experience throttling if you install peer-to-peer files on your phone. To enable port forwarding behind Xfinity CGNAT, you need PureVPN’s dedicated IP and port forwarding, which you can configure on your device. Once you are connected to the VPN server, you can allow port forwarding on your computer (connected through the PureVPN server). With a dedicated VPN tunnel set up between your device and a VPN server, any traffic sent to that IP bypasses NAT rules – whether it’s over CGNAT or a managed network (office and school) or simply a home network with a router.

To forward ports with PureVPN to bypass Xfinity CGNAT

To forward the port and bypass the Xfinity CGNAT network, follow the instructions below.

  • Log in to the members area of PureVPN
  • Click on “Subscription” and then click on “Configure”
  • Apply your desired port settings
  • Click on the “Apply settings”

To set up a PureVPN static IP, you can use Windows, Mac, and Linux devices. You can set up the static IP using apps on Windows and Mac. For Linux, a manual configuration method is required to configure the PureVPN static IP address on Linux. Click here to find out how to set up a dedicated IP with PureVPN. Qaiser Raheel About the Guest Author: Raheel Qaiser is a cybersecurity and technology expert who loves to provide a unique perspective on the latest trends and their impact on the digital age. Central Bank Balance Check No.

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