ipv6 address classes

In fact, this is very simple, but I have always wanted to use the ipv6-test API to get a user IP address ...... But what JSON gets is the IP address of the local server. Forget it, don't study it, And the widgets provided by others are also quite useful. Google finds this code and obtains the IP address based on the us

In recent years, the Internet based on IPv4 protocol has been booming. Both the network coverage and network capacity, the number of Internet users and the business type are growing rapidly. Computer Networks, telecom networks, and cable television networks are moving towards an integrated IP-based next-generation network (NGN ). While the IP technology is favored and pursued by network builders in history, present, and future, we must be aware that there are still many imperfections in the IPv4

Php uses the filter to verify the ipv6 address url of the mailbox. 1. verify email copy code: $ emailjb51@qq.com; $ resultfilter_var ($ email, FILTER_VALIDATE_EMAIL); var_dump ($ result); string (14) jb51@qq.com2, verify url location 1, verify email The code is as follows: $ Email = 'jb51 @ qq.com ';$ Result = filter_var ($ email, FILTER_VALIDATE_EMAIL );Var_dump ($ result); // string (14) "jb51@qq.com"

Vista's new TCP/IP network protocol stack fully supports the IPv6 format. Do you want to know the IPv6 format of the local address 127.0.0.1? Ping from Windows Vista tells you that many users may feel that the network speed of Windows Vista is not as high as that of Windows XP. In fact, this is because of the number of TCP/IP connections, microsoft may limit the

What do you think of IPv6 's address range? I will not look at the address range of IPv6, such as the following two address range refers to from which address to which address ah? 2406:

Source IPv4 uses 32-bit address length XXX. XXX 15max (string)IPv6 uses a 128-bit address length estimated to be xxx. xxx. xxx. xxx. xxx. xxx. xxx. xxx. xxx. xxx. xxx. xxx. xxx. xxx. xxx. xxx 63max (string) IPv4 uses 32-bit decimal address length XXX. XXXIPv6 uses the hexadecimal 128-bit

The regular expression is used to determine whether the mailbox, url, and IP address format are consistent. Later, I learned that the built-in function library filter can be used in php to complete these functions. next I will share with you IPv6 1. verify email The code is as follows:$ Email = 'jb51 @ qq.com ';$ Result = filter_var ($ email, FILTER_VALIDATE_EMAIL );Var_dump ($ result); // string (14) "j

The regular expression is used to determine whether the mailbox, url, and IP address format are consistent. Later, I learned that php can also use the built-in function library filter to complete these functions. I will share with you the following: The regular expression is used to determine whether the mailbox, url, and IP address format are consistent. Later, I learned that php can also use the built-in

1. verify email Copy codeThe Code is as follows:$ Email = 'jb51 @ qq.com ';$ Result = filter_var ($ email, FILTER_VALIDATE_EMAIL );Var_dump ($ result); // string (14) "jb51@qq.com" 2. Verify the url address Copy codeThe Code is as follows:$ Url = "http://www.jb51.net ";$ Result = filter_var ($ url, FILTER_VALIDATE_URL );Var_dump ($ result); // string (22) "http://www.jb51.net" 3. Verify the IP address Copy

1, verify the mailbox Copy the Code code as follows:$email = ' jb51@qq.com ';$result = Filter_var ($email, Filter_validate_email);Var_dump ($result); String "Jb51@qq.com" 2. Verify the URL address Copy the Code code as follows:$url = "Http://www.jb51.net";$result = Filter_var ($url, Filter_validate_url);Var_dump ($result); String ("Http://www.jb51.net") 3. Verify IP Address Copy the Code code as follows:$u

1, verify the mailbox Copy Code code as follows: $email = ' jb51@qq.com '; $result = Filter_var ($email, Filter_validate_email); Var_dump ($result); String "Jb51@qq.com" 2. Verify URL Address Copy Code code as follows: $url = "Http://www.jb51.net"; $result = Filter_var ($url, Filter_validate_url); Var_dump ($result); String (http://www.jb51.net) 3. Verify IP

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSystem.Net;5 usingsystem.web;6 7 namespaceFxbvt_team.checkfilepath8 {9 Public classipnetworkingTen { One Public Static stringGetip4address (stringhostaddress) A { - stringIp4address =String.Empty; - the foreach(IPAddress IPAinchdns.gethostaddresses (hostaddress)) - { - if(IPA. addressfamily.tostring () = ="Internetwork") - { +Ip4

What do you think of IPv6 's address range?