/** * Get local IP address * @author YOLANDA * @return */public static string Getlocalipaddress () {String ipAddress = ""; try {Enumerat ion/* here to add a little explanation, because at the beginning of 21, HttpClient was abandoned, Google recommended the use of Urlconnect, where the Ipv4 is also abandoned, in order to be compatible with later versions, I httpclient some of the source code directly to the
In fact, this is very simple, but I have always wanted to use the Ipv6-test API to do something to get the user's IP address ... Helpless JSON gets only the IP of the native server. Forget, do not study, let alone others provide the widget also very good. Google a bit, find this code, can be based on the user environment to obtain an IP
In fact, this is very simple, but I always want to use the Ipv6-test API to do a get user IP address things ... Unfortunately, JSON gets only the IP of the native server. Forget it, do not study, not to mention that the widget is also very useful. Google a bit, find this code, you can obtain the IP address based on the
compression can only is applied once in an IP address.To determine how many blocks has been omitted, you just has to count the remaining blocks and subtract this number from 8.EXAMPLE:FE80:0:0:0:2AA:FF:FE9A:4CA2 can is zero compressed to FE80::2AA:FF:FE9A:4CA2.There are only 5 sets of data, with a double colon in the middle indicating a compressed 0,8-5=3; 3 groups of 0000 are compressed.IPV6 PrefixIPV6 prefixes is used to express IPV6 subnets, route
IPv6 address space
The most notable feature of IPv6 is its massive address space. IPv6 uses a 128-bit address length, which is four times the length of IPv4. When the address length is
From IPV6 details
Ipv6 addresses can be divided into three categories: unicast addresses, wildcard addresses, and multicast addresses (many introductions on the following two types of networks)
Unicast addresses can also be divided into global unicast addresses, local unicast links, and local unicast sites.
See the IPV6 Addr
1. First verify that your DNS server supports IPV6, which generally refers to routes in the network.2. If there is no route in the network, add the IPV6 address and name of the other party directly in the hosts file.3. Using a UNC path, change the colon to a hyphen and attach the. Ipv6-literal.net to replace the symbol
prefix and length, and the interface part is created by the EUI-64 thread.
2. DHCP6: Obtain the addressing information through related services of the DHCPv6 server.
Whether the host configured to automatically obtain the addressing information uses SLAAC or DHCPv6 depends on the configuration information in the router RA message.
The IPv6 Neighbor Discovery protocol uses the route message sent by NA to notify the prefix, prefix length, default gatew
Before introducing IPv6 addressing, this chapter first introduces some issues related to using IP addressing to identify and locate nodes on an IP network. For many years, IP addresses have been considered unique and persistent node identifiers on IP networks. In recent years, especially with the development of the next generation of IP technology, this idea of IP addresses is changing. If we still use the methods used in the past two years to allocat
compression.Example 4:Before compression:3ffe:0000:0000:0000:1010:2a2a:0000:0001After compression:3ffe::1010:2a2a::0001Note: When the computer to get this compressed address, found that compared to the normal 128 bit less 64 bits, the computer will try to: the place to fill the less 64 0, but we can see that the compressed address has two::, and the computer to
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, // Add
A huge IPv6 address space ensures that all cats and dogs have unique addresses.
The primary motivation of IPv6 is to meet the needs of the world's unique address. The number of IPv6 addresses is four times the number of IPv4 addresses. One is 32 bits and the other is 128 bit
Labels: IPv6 address: ipv6 local link address, IPv4 address
A huge IPv6 address space ensures that all cats and dogs have unique addresses.
The primary motivation of
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
In order to expand the network, we use the IPv6 protocol. As an improvement of the previous version protocol, the address type in the traditional sense is no longer applicable, now let's analyze the types of IPv6 addresses and basic knowledge about text representation.
The leading position in the address defines the sp
IPV6 and loopback address are short for Internet Protocol Version 6. Internet Protocol is translated into Internet Protocol ". IPv6 is the next-generation IP protocol designed by IETF (Internet Engineering Task Force) to replace the current version of IP protocol (IPv4. Currently, the version of the IP protocol is 4 (IPv4 for short), and its next version is
The emergence and use of the new standard IPv6 network protocol has passed for many years. So the factors that make IPv6 network protocol more commercialized are its special address structure. Now let's take a look at this content. First, let's take a look at the conversion of the two Protocols.
1. IPv4 to IPv6 network
IPv6 anycast Technology and Its anycast Address Resolution Protocol
Author: Wang Jianli fangwei
Abstract: anycast is a new network application. Anycast communication supports service routing. However, many definitions of anycast communication in IPv6 are vague, and no protocol standards have been reached in controlling routes, therefore, anycast communication
With the IPV4 address is about to run out, the world has accelerated into the IPv6 era, our computer can also view the IPV6 address information, but a lot of friends for IPv6 what is not very understanding, the following small series through the
Unable to bind IPv6 address when NFS service startsIn the Test of NFS, suddenly there has never been a mistake, fault information as follows, for this purpose to describe the process of troubleshooting, for peer reference:Info:[[Email protected] ~]# Service NFS StartStarting NFS services: [OK]Starting NFS quotas: [OK]Starting NFS mountd:rpc.mountd:svc_tli_create:could not open connection for UDP6Rpc.mountd:
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