保留IP地址-ipv4/ipv6

最近在公司使用的socket通讯项目部署到阿里之后,阿里内部提供的健康检查无法关闭,导致不间断的存在空连接.

在查看了日志中记录的请求ip之后,发现这个是IP地址:

100.117.99.129

100.117.97.3

100.116.246.3

这些IP咋一看我还以为是外网ip,结果是保留地址.

这些IP明显属于A类地址.相关的信息:

A类:1.0.0.0—126.0.0.0  127.0.0.0被保留为环回(loopback)地址,不能做为有效的因特网地址使用。

后来查询了wiki百科之后.
https://en.wikipedia.org/wiki/Reserved_IP_addresses
原来国内的这些地方没有解释完整.

 

Special address blocks
Address block Address range Number of addresses Scope Description
0.0.0.0/8 0.0.0.0–0.255.255.255 232-8 = 224 = 16777216 Software Current network[1] (only valid as source address).
10.0.0.0/8 10.0.0.0–10.255.255.255 16777216 Private network Used for local communications within a private network.[2]
100.64.0.0/10 100.64.0.0–100.127.255.255 4194304 Private network Shared address space[3] for communications between a service provider and its subscribers when using a carrier-grade NAT.
127.0.0.0/8 127.0.0.0–127.255.255.255 16777216 Host Used for loopback addresses to the local host.[1]
169.254.0.0/16 169.254.0.0–169.254.255.255 65536 Subnet Used for link-local addresses[4] between two hosts on a single link when no IP address is otherwise specified, such as would have normally been retrieved from a DHCP server.
172.16.0.0/12 172.16.0.0–172.31.255.255 1048576 Private network Used for local communications within a private network.[2]
192.0.0.0/24 192.0.0.0–192.0.0.255 256 Private network IETF Protocol Assignments.[1]
192.0.2.0/24 192.0.2.0–192.0.2.255 256 Documentation Assigned as TEST-NET-1, documentation and examples.[5]
192.88.99.0/24 192.88.99.0–192.88.99.255 256 Internet Reserved.[6] Formerly used for IPv6 to IPv4 relay[7] (included IPv6 address block 2002::/16).
192.168.0.0/16 192.168.0.0–192.168.255.255 65536 Private network Used for local communications within a private network.[2]
198.18.0.0/15 198.18.0.0–198.19.255.255 131072 Private network Used for benchmark testing of inter-network communications between two separate subnets.[8]
198.51.100.0/24 198.51.100.0–198.51.100.255 256 Documentation Assigned as TEST-NET-2, documentation and examples.[5]
203.0.113.0/24 203.0.113.0–203.0.113.255 256 Documentation Assigned as TEST-NET-3, documentation and examples.[5]
224.0.0.0/4 224.0.0.0–239.255.255.255 268435456 Internet In use for IP multicast.[9] (Former Class D network).
240.0.0.0/4 240.0.0.0–255.255.255.254 268435456 Internet Reserved for future use.[10] (Former Class E network).
255.255.255.255/32 255.255.255.255 1 Subnet Reserved for the “limited broadcast” destination address.[1][11]

ipv6的保留地址:

Special address blocks
Address block (CIDR) First address Last address Number of addresses Usage Purpose
::/0 :: ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 2128 Routing Default route.
::/128 :: 1 Software Unspecified address.
::1/128 ::1 1 Host Loopback address to the local host.
::ffff:0:0/96 ::ffff:0.0.0.0 ::ffff:255.255.255.255 2128-96 = 232 = 4294967296 Software IPv4 mapped addresses.
::ffff:0:0:0/96 ::ffff:0:0.0.0.0 ::ffff:0:255.255.255.255 232 Software IPv4 translated addresses.
64:ff9b::/96 64:ff9b::0.0.0.0 64:ff9b::255.255.255.255 232 Global Internet IPv4/IPv6 translation.[12]
100::/64 100:: 100::ffff:ffff:ffff:ffff 264 Routing Discard prefix.[13]
2001::/32 2001:: 2001::ffff:ffff:ffff:ffff:ffff:ffff 296 Global Internet Teredo tunneling.
2001:20::/28 2001:20:: 2001:2f:ffff:ffff:ffff:ffff:ffff:ffff 2100 Software ORCHIDv2.[14]
2001:db8::/32 2001:db8:: 2001:db8:ffff:ffff:ffff:ffff:ffff:ffff 296 Documentation Addresses used in documentation and example source code.
2002::/16 2002:: 2002:ffff:ffff:ffff:ffff:ffff:ffff:ffff 2112 Global Internet The 6to4 addressing scheme (now deprecated).[6]
fc00::/7 fc00:: fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 2121 Private network Unique local address.[15]
fe80::/10 fe80:: febf:ffff:ffff:ffff:ffff:ffff:ffff:ffff 2118 Link Link-local address.
ff00::/8 ff00:: ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 2120 Global Internet Multicast address.

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