why ipv6 is needed

, in addition, because the network has exploded in countries such as China and India, the available IPv4 addresses in the world are nearing the end. Using 128 bits to compile unique IP addresses, IPv6's massive IP addresses far exceed the crazy needs of today's Internet and network connection devices. Instead of being like IPv4's 4.3 billion address limit, IPv6 has enough addresses to allocate billions of a

In the previous article, we learned about the IPv6 protocol and believe that you have mastered the basic knowledge in this area. Now let's talk about the automatic configuration and security of IPv6. Then, the reason for upgrading to IPv6 is not only because of address shortage, because the new version of the network p

As one of the most popular technologies in network applications, IPv6 routers play an important role in it. Here we mainly analyze the impact of IPv6 routers on network management, I hope you will gain some benefits after reading this article. Significant changes in the IPv6 Router Protocol improve network device management. First, adding an IP address from 32-bi

IPv6 extension header: Is it good or bad? A recent IETF study shows that when an extended header is deployed, the packet loss rate of IPv6 packets sent to the internet server is between 10% and 50%. This intensity of filtering is

IPV6 has been more and more widely supported, especially when Apple enforces that iOS (specifically iOS 9 and later) applications must support IPV6 (officially announced) and will further promote the use of IPV6.However, the application of Apple as a client-mandated IPV6, is

Significant changes in the IPv6 protocol improve network device management.First, adding an IP address from 32-bit to 128-bit will increase the structure and allocation of the IP address. An IPv6 address consists of a global route prefix, a subnet ID, and an interface ID (local link in the LAN ). The unique parts of the address domain are distributed hierarchically according to the network infrastructure To

China is developing industry standards for the technical requirements for dual-stack firewalls, the first technical standard for firewall devices in the transition from IPv4 to IPv6 in China. The standards led by China Mobile and drafted by Huawei are still being formulated and are expected to be completed by 2013. The IPv4 address has been allocated, and the development of

Disabling IPV6-Scenario 1Edit File-/etc/sysctl.conf $ sudo gedit / etc / Sysctl . conf Add the following line at the end of the file. # IPV6 Disabled Net . IPv6 . conf . All . Disable_ipv6 = 1 Net . IPv6 . conf . default . Disable_ipv6 = 1 Net . IPv6

Since June 2016, when Apple asked the app to be compatible with IPV6, many apps were rejected for this reason during the audit, introducing a Mac ( IPv6 dns64/nat64 network that leverages two iphones and an OS X10.11 This feature is a new addition to OS X 10.11 )First step: Connect iphone and Mac via data cableStep Two: Open your iphone's personal hotspot and sel

specified by the attacker, causing the communication information to be leaked ｡ (3) Although the attribution address option solves the problem of the inbound network filter router, however, the current location information of the mobile terminal is exposed, which poses a security threat to some communications that wish to hide the location information of the mobile terminal ｡ (4) In the mobile IPv4 protocol, the foreign proxy will authenticate the mo

No matter whether enterprise users are ready or not, IPv6 network deployment is just around the corner. The demand for advanced site selection technology is growing, and everything in life will be able to use this technology. At the same time, VoIP has become the mainstream technology and has become the basis of other network services. It

Centos6 disable ipv6 in/etc/modprobe. d/dist. conf add the following content aliasnet-pf-10offaliasipv6off this step can disable ipv6, but restarting the network will prompt the error FATAL: Moduleoffnotfound. solution: 1. replace aliasipv6off with optionsipv6disabl Disable ipv6 in Centos 6 and add the following content in/etc/modprobe. d/dist. conf: Alias net-

　　First, IPV6 direct access For this network application, there are several points to be explained. 1th, the DirectAccess is for enterprise users. The DirectAccess-built VPN in WIN7 Enterprise and flagship versions can better prevent hackers from stealing network data through firesheep than the IPv6 of the win Server 2008 R2, which

What is the difference between IPv4 and IPv6 service quality?This is an interesting question that people often ask. The two versions of the Protocol have no difference in terms of service quality. The only difference is that the header is slightly different. Therefore, you c

Ubuntu12.04 indicates that ipv6 on the internal network is good or bad. new users seek help-General Linux technology-Linux technology and application information. for details, refer to the following section. :~ $ Ifconfig Eth0 Link encap: Ethernet HWaddr 00: 1f: 16: 31: 1f: 78 Inet addr: 180.201.10.58 Bcast: 180.201.11.255 Mask: 255.255.254.0 Inet6 addr: 2001: da8: 7000: 7008: 21f: 16ff: fe31: 1f78/64 Scope

Public Static String Getlocalip (){ Try { String Hostname = DNS. gethostname (); // Get the Host Name Iphostentry ipentry = DNS. gethostentry (hostname ); For ( Int I = 0 ; I { // Select an IPv4 IP address from the IP address list. // Addressfamily. Internetwork indicates that the IP address is IPv4, // Addressfamily. internetworkv6 indicates that this address is of the

Public static string getlocalip (){Try{String hostname = DNS. gethostname (); // obtain the host name.Iphostentry ipentry = DNS. gethostentry (hostname );For (INT I = 0; I {// Filter IPv4 IP addresses from the IP address list// Addressfamily. Internetwork indicates that the IP address is IPv4,// Addressfamily. internetworkv6 indicates that the address is of the IPv6