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    電腦ip地址是什么(電腦如何改ip地址)

    發(fā)布時(shí)間:2023-03-09 13:33:08     稿源: 創(chuàng)意嶺    閱讀: 82        問大家

    大家好!今天讓創(chuàng)意嶺的小編來大家介紹下關(guān)于電腦ip地址是什么的問題,以下是小編對(duì)此問題的歸納整理,讓我們一起來看看吧。

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    本文目錄:

    電腦ip地址是什么(電腦如何改ip地址)

    一、什么是IP地址

    IP地址稱作網(wǎng)絡(luò)協(xié)議地址,是分配給主機(jī)的一個(gè)32位地址,由4個(gè)字節(jié)組成,分為動(dòng)態(tài)IP地址和靜態(tài)IP地址兩種。接下來我為大家整理了什么是IP地址,希望對(duì)你有幫助哦!

    IP地址(Internet Protocol Address)是一種在Internet上的給主機(jī)編址的方式,也稱為網(wǎng)際協(xié)議地址。由32位二進(jìn)制數(shù)組成,為便于使用,常以XXX.XXX.XXX.XXX形式表現(xiàn),每組XXX代表小于等于255的10進(jìn)制數(shù)。例如202.96.155.9。Internet中,IP地址是唯一的。目前IP技術(shù)可能使用的IP地址最多可有約42億個(gè)。驟看可能覺得很難會(huì)用盡,但由于早期編碼上的問題,使很多編碼實(shí)際上被丟空或不能使用。加上因特網(wǎng)的普及,使每個(gè)家庭都至少有一部電腦,連同公司的電腦,以及連接每個(gè)網(wǎng)絡(luò)的服務(wù)器,長此下去,專家擔(dān)心隨著Internet的發(fā)展,將不夠用。所以相應(yīng)的科研組織正在研究128位的IP地址,其IP地址數(shù)量最高可達(dá) 3.402823669 × 1038 個(gè),地球上的每一粒沙子都可以擁有自己的IP地址,這種新版的IP地址技術(shù)叫IPv6。

    An IP address (Internet Protocol address) is a unique number that devices use in order to identify and communicate with each other on a network utilizing the Internet Protocol standard. Any participating device — including routers, computers, time-servers, internet FAX machines, and some telephones — must have its own unique address. This allows information passed onwards on behalf of the sender to indicate where to send it next, and for the receiver of the information to know that it is the intended destination.

    The numbers currently used in IP addresses range from 1.0.0.0 to 255.255.255.255, though some of these values are reserved for specific purposes. This does not provide enough possibilities for every internet device to have its own permanent number. Subnet routing, Network Address Translation and the Dynamic Host Configuration Protocol (DHCP) server all allow local networks to use the same IP addresses as other networks elsewhere though both are connected to the Internet. Devices such as network printers, web servers and email servers are often allocated static IP addresses so they can always be found.

    IP addresses are conceptually similar to phone numbers, except they are used in LANs (Local Area Network), WANs (Wide Area Network), or the Internet. Because the numbers are not easy for humans to remember, the Domain Name System provides a service analogous to an address book lookup called "domain name resolution" or "name resolution". Special DNS servers on the internet are dedicated to performing the translation from a domain name to an IP address and vice versa.

    電腦ip地址是什么(電腦如何改ip地址)

    More detail

    The Internet Protocol (IP) knows each logical host interface by a number, the IP address. On any given network, this number must be unique among all the host interfaces that communicate through this network. Users of the Internet are sometimes given a host name in addition to their numerical IP address by their Internet service provider.

    The IP addresses of users browsing the World Wide Web are used to enable communications with the server of the Web site. Also, it is usually in the header of email messages one sends. In fact, for all programs that utilize the TCP/IP protocol, the sender IP address and destination IP address are required in order to establish communications and send data.

    Depending on one's Internet connection the IP address can be the same every time one connects (called a static IP address), or different every time one connects, (called a dynamic IP address). In order to use a dynamic IP address, there must exist a server which can provide the address. IP addresses are usually given out through a server service called DHCP or the Dynamic Host Configuration Protocol. If a static address is used, it must be manually programmed into parameters of the device's network interface.

    Internet addresses are needed not only for unique enumeration of hosted interfaces, but also for routing purposes, therefore a high fraction of them are always unused or reserved.

    The unique nature of IP addresses makes it possible in many situations to track which computer — and by extension, which person — has sent a message or engaged in some other activity on the Internet. This information has been used by law enforcement authorities to identify criminal suspects; however dynamically-assigned IP addresses can make this difficult.

    IP version 4

    Addressing

    In version 4 of the Internet protocol (IPv4), the current standard protocol for the Internet, IP addresses consist of 32 bits, which makes for 4,294,967,296 (over 4 billion) unique host interface addresses in theory. If all of these were used, that would be around one IP address per 21.3 square meters, or 70 square feet, of land. In practice, because addresses are allocated in blocks, many unused addresses are unavailable (much like unused phone numbers in a sparsely-populated area code), so that there is some pressure to extend the address range via IP version 6 (see below).

    IPv4 addresses are commonly expressed as a dotted quad, four octets (8 bits) separated by periods. The host known as www.wikipedia.org currently has the number 3482223596, written as 207.142.131.236 in base-256: 3482223596 equals 207×2563 142×2562 131×2561 236×2560. (Resolving the name www.wikipedia.org to its associated number is handled by Domain Name System servers.)

    IPv4 addresses were originally divided into two parts: the network and the host. A later change increased that to three parts: the network, the subnetwork, and the host, in that order. However, with the advent of classless inter-domain routing (CIDR), this distinction is no longer meaningful, and the address can have an arbitrary number of levels of hierarchy. (Technically, this was already true any time after the advent of subnets, since a site could elect to have more than one level of subnetting inside a network number.)

    Assignment

    Each interface of a device is assigned, at least theoretically, a unique IP address. In practice, some interfaces may be unnumbered, and many addresses are not globally unique.

    The actual assignment of an address is not arbitrary. The fundamental principle of routing, that addresses encode information about a device's location within a network, implies that an address assigned to one part of a network will not function in another part of the network. A hierarchical structure, standardized by CIDR and overseen by the Internet Assigned Numbers Authority (IANA) and its Regional Internet Registries (RIRs), manages the assignment of Internet address worldwide. Each RIR maintains a publically searchable WHOIS database that provides information about IP address assignments; information from these databases plays a central role in numerous tools which attempt to locate IP addresses geographically.

    Exhaustion

    Some private IP address space has been allocated via RFC 1918. This means the addresses are available for any use by anyone and therefore the same RFC 1918 IP addresses can be reused. However they are not routable on the Internet. They are used extensively due to the shortage of registerable addresses. Network address translation (NAT) is required to connect those networks to the Internet.

    While a number of measures have been taken to conserve the limited existing IPv4 address space (such as the use of NAT and Private Addressing), the number of 32-bit IP addresses is not sufficient to accommodate the long-term growth of the Internet. For this reason, the plan is that the Internet 128-bit IPv6 addressing scheme will be adopted over the next 5 to 15 years.

    IP version 5

    What would be considered IPv5 existed only as an experimental non-IP real time streaming protocol called ST2, described in RFC 1819. In keeping with standard UNIX release conventions, all odd-numbered versions are considered experimental, and this version was never intended to be implemented; the protocol was not abandoned. RSVP has replaced it to some degree.

    IP version 6

    In IPv6, the new (but not yet widely deployed) standard protocol for the Internet, addresses are 128 bits wide, which, even with generous assignment of netblocks, should suffice for the foreseeable future. In theory, there would be exactly 2128, or about 3.403 × 1038 unique host interface addresses. If the earth were made entirely out of 1 cubic millimeter grains of sand, then you could give a unique address to each grain in 300 million planets the size of the earth. This large address space will be sparsely populated, which makes it possible to again encode more routing information into the addresses themselves.

    Addressing

    A version 6 address is written as eight 4-digit hexadecimal numbers separated by colons. For readability, addresses may be shortened in two ways. Within each colon-delimited section, leading zeroes may be truncated. Secondly, one string of zeroes (and only one) may be replaced with two colons (::). For example, all of the following addresses are equivalent:

    1080:0000:0000:0000:0000:0034:0000:417A

    1080:0:0:0:0:34:0:417A

    1080::34:0:417A

    Global unicast IPv6 addresses are constructed as two parts: a 64-bit routing part followed by a 64-bit host identifier.

    Netblocks are specified as in the modern alternative for IPv4: network number, followed by a slash, and the number of relevant bits of the network number (in decimal). Example: 12AB::CD30:0:0:0:0/60 includes all addresses starting with 12AB00000000CD3.

    IPv6 has many improvements over IPv4 other than just bigger address space, including autorenumbering and mandatory support for IPsec.

    二、什么是IP地址?????

    分類: 電腦/網(wǎng)絡(luò)

    問題描述:

    我們上網(wǎng)時(shí)要用是嗎還是....

    解析:

    盡管互聯(lián)網(wǎng)上聯(lián)接了無數(shù)的服務(wù)和電腦,但它們并不是處于雜亂無章的無序狀態(tài),而是每一個(gè)主機(jī)都有惟一的地址,作為該主機(jī)在Inter上的唯一標(biāo)志。我們稱為IP地址(Inter Protocol Address)。它是一串4組由圓點(diǎn)分割的數(shù)字組成的,其中每一組數(shù)字都在0-256之間,如:0-255.0-255.0-255.0-255.0-255;如,202.202.96.33就是一個(gè)主機(jī)服務(wù)器的IP地址。

    另一種表示方法擺脫了數(shù)字的單調(diào)和難記的缺點(diǎn),用域名DN(Domain Name)來表示,即代表該主機(jī)的一個(gè)文字名稱,如.lg..是一家公司主機(jī)服務(wù)器的域名。DNS(Domain Name System)域名服務(wù)器系統(tǒng)將形象的文字型域名翻譯成對(duì)應(yīng)的數(shù)字型IP地址。通過上述IP,域名DN,域名系統(tǒng)DNS,就把每一臺(tái)主機(jī)在Inter上給予了惟一的定位。

    IP地址作用

    就像每個(gè)電話用戶有一個(gè)全世界惟一的電話號(hào)碼一樣,Inter中的每一臺(tái)計(jì)算機(jī)也有單一的地址。為了使信息能夠在Inter上準(zhǔn)確快捷地傳送到目的地,連接到Inter上的每臺(tái)計(jì)算機(jī)必須擁有一個(gè)惟一的地址。

    為每臺(tái)計(jì)算機(jī)指定的地址是一組數(shù)字,稱為Inter地址或IP地址。通過IP地址,就可以準(zhǔn)確地找到連接在Inter上的某臺(tái)計(jì)算機(jī)。

    當(dāng)SIP(Session Initiation Protocol,會(huì)話初始協(xié)議)最初構(gòu)思時(shí),其定位是將企業(yè)從PBX的壟斷之中解脫出來,不用支付更高的維護(hù)費(fèi)用,承擔(dān)昂貴的硬件,或忍受由私有環(huán)境分類的有限選項(xiàng)。自從SIP引入以后情況發(fā)生了很大改變,但有一點(diǎn)一直沒變:大多數(shù)企業(yè)仍和從前一樣,緊緊束縛在昂貴的后端通話服務(wù)器上。

    一個(gè)新的互聯(lián)網(wǎng)草案:P2P(Peer-to-Peer,對(duì)等協(xié)議)版本的SIP,將有望改變這種狀況。通過丟掉SIP的后端需求,將可以更容易配置安裝以更低的成本來運(yùn)行SIP協(xié)議。這將使SIP請(qǐng)求擴(kuò)展到低端消費(fèi)市場(chǎng),并幫助其與P2P互聯(lián)網(wǎng)電話業(yè)務(wù)供應(yīng)商Skype競(jìng)爭(zhēng)。它還能夠擴(kuò)展大型企業(yè)可利用的彈性選項(xiàng)范圍。

    目前的P2P SIP仍然處于萌芽階段。雖然在哥倫比亞大學(xué)和W&M學(xué)院配置有這個(gè)協(xié)議,但P2P SIP草案的大部分內(nèi)容仍未明確,還存在很多問題。例如如何保證一個(gè)無需集中授權(quán)的固定唯一的名址空間,互聯(lián)網(wǎng)的e-mail地址最可能成為這個(gè)問題的一個(gè)選項(xiàng),但這一論斷仍有待驗(yàn)證。懸而未決的還有P2P SIP協(xié)議底層的數(shù)據(jù)庫結(jié)構(gòu),出于SIP客戶機(jī)的利益,一旦企業(yè)需要將代理服務(wù)器加入P2P SIP網(wǎng)絡(luò)之中,數(shù)據(jù)庫結(jié)構(gòu)將很容易變得低效。

    很明顯該草案會(huì)給SIP廠商和業(yè)務(wù)供應(yīng)商帶來兩難的抉擇,但廠商會(huì)在多大程度上促進(jìn)或抑制該技術(shù)的發(fā)展仍不明朗。Cisco系統(tǒng)公司語音技術(shù)小組著名工程師和互聯(lián)網(wǎng)草案的共同創(chuàng)造者之一Cullen Jennings認(rèn)為:“這是一個(gè)尋找問題的技術(shù)”。不論對(duì)于消費(fèi)者有什么潛在的寓意,將P2P SIP帶進(jìn)客戶機(jī),將有可能減少基礎(chǔ)架構(gòu)和業(yè)務(wù)供應(yīng)商用以保持其客戶基礎(chǔ)的關(guān)鍵成分。

    如果P2P成功,它將與Skype供應(yīng)商直接競(jìng)爭(zhēng),會(huì)給低端消費(fèi)業(yè)務(wù)帶來最大沖擊,同時(shí)還會(huì)影響中小規(guī)模的企業(yè)市場(chǎng)。雖然SIP已獲得很多成功,這其中包括被微軟、IBM和其他電信運(yùn)營商采納,但其日常開支也限制了它在這些市場(chǎng)上的認(rèn)同度。

    由于使用私有的接口,Skype的成功已經(jīng)迅速引起標(biāo)準(zhǔn)組織褒貶不一的注意。P2P SIP的出現(xiàn)會(huì)與Skype的“標(biāo)準(zhǔn)”保持平衡。雖然P2P SIP需要對(duì)SIP堆棧進(jìn)行細(xì)微的補(bǔ)充,但由于允許現(xiàn)有SIP設(shè)備供應(yīng)商只通過升級(jí)其SIP軟件就可完成,這些補(bǔ)充也是名義上的。

    不僅最終用戶可在很多兼容的軟件電話和常規(guī)電話之中進(jìn)行選擇,后端終端也能夠從競(jìng)爭(zhēng)中獲利。與選擇被授權(quán)的SkypeOut業(yè)務(wù)不同,無論Vonage還是MCI,任何SIP業(yè)務(wù)供應(yīng)商都可將P2P SIP通話連接到PSTN上。

    在企業(yè)世界中,P2P SIP目標(biāo)定位于適當(dāng)?shù)膽?yīng)用。該協(xié)議特別適合需要低廉開支和快速建立的通信應(yīng)用,例如用戶希望進(jìn)行小規(guī)模通信的特別會(huì)談。協(xié)議對(duì)于中小型的遠(yuǎn)程辦公室和缺少IT員工的公司也具備很大吸引力,通過在少數(shù)Wi-Fi電話和熱點(diǎn)之間建立P2P SIP,可以為臨時(shí)應(yīng)用迅速構(gòu)建一個(gè)通信網(wǎng)絡(luò),例如快速響應(yīng)和新聞突發(fā)事件的應(yīng)用場(chǎng)合。而當(dāng)大型企業(yè)的大型辦公場(chǎng)所出現(xiàn)代理故障時(shí),該協(xié)議還可作為一種廉價(jià)冗余的機(jī)制,來保證設(shè)備的正常運(yùn)行。

    但由于P2P SIP草案沒有關(guān)于如何管理VoIP網(wǎng)絡(luò)的描述,它在企業(yè)中大規(guī)模的應(yīng)用還存在疑問?;旧希琍2P網(wǎng)絡(luò)被認(rèn)為是不具備管理能力的,所以不會(huì)有任何真正意義上的管理。市場(chǎng)和開發(fā)者都希望P2P系統(tǒng)能具備自管理能力,在任何情況下,起碼在單客戶機(jī)的基礎(chǔ)上應(yīng)該達(dá)到這個(gè)目標(biāo)。

    P2P SIP原理

    P2P SIP草案規(guī)范了一個(gè)真正的無服務(wù)器網(wǎng)絡(luò)。但很明顯,實(shí)際上很多P2P網(wǎng)絡(luò)是混合配置的,擁有用來進(jìn)行注冊(cè)和地址空間管理的服務(wù)器。Skype就是混合P2P網(wǎng)絡(luò)的一個(gè)典型例子,今天的SIP網(wǎng)絡(luò)實(shí)質(zhì)上也是一個(gè)混合網(wǎng)絡(luò)。

    由于在網(wǎng)絡(luò)中沒有任何服務(wù)器,純P2P網(wǎng)絡(luò)有望變成規(guī)??勺兊耐瑫r(shí)對(duì)故障擁有高度抵抗力的網(wǎng)絡(luò)。但是其性能會(huì)成為另一個(gè)問題。早期的P2P網(wǎng)絡(luò)可能會(huì)為尋找某個(gè)源文件而向多臺(tái)機(jī)器產(chǎn)生搜索查詢。即使其中一臺(tái)返回了正確的結(jié)果,其他對(duì)等機(jī)器還可能在運(yùn)行查詢,這將消耗可貴的CPU周期。同時(shí)P2P文件共享網(wǎng)絡(luò)也以其過度的帶寬消耗而聞名,像目前廣泛流行的MP3和MPEG共享應(yīng)用。

    P2P SIP采取一些措施來防止這些問題的發(fā)生。一個(gè)用戶在遠(yuǎn)程節(jié)點(diǎn)存儲(chǔ)的數(shù)據(jù)量,目前被限制在節(jié)點(diǎn)經(jīng)過的ID和一個(gè)IP地址之間的映射中。甚至好友列表、配置參數(shù)和其它參量也被同樣存儲(chǔ),但是這些信息不能超過幾千字節(jié)。

    更重要的一點(diǎn)是,與一臺(tái)設(shè)備向所有其他設(shè)備盲目發(fā)出查詢不同的是,查詢要求會(huì)轉(zhuǎn)交給一臺(tái)具有搜索細(xì)化功能的機(jī)器。這是通過一個(gè)DHT(Distributed Hash Table,分布式復(fù)述列表)實(shí)現(xiàn)的,通過每個(gè)節(jié)點(diǎn)的IP地址產(chǎn)生一個(gè)唯一的編碼來指向數(shù)據(jù)。在這種情況下,一般會(huì)使用通常用于數(shù)字簽名的SHA-1復(fù)述函數(shù)。產(chǎn)生了整個(gè)網(wǎng)絡(luò)的DHT之后,在P2P SIP網(wǎng)絡(luò)的所有節(jié)點(diǎn)中分配DHT,每個(gè)節(jié)點(diǎn)可維護(hù)其中一部分列表。

    三、網(wǎng)絡(luò)IP地址是什么

    網(wǎng)絡(luò)是由若干節(jié)點(diǎn)和連接這些節(jié)點(diǎn)的鏈路構(gòu)成,表示諸多對(duì)象及其相互聯(lián)系。以下是我為大家收集的網(wǎng)絡(luò)IP地址是什么,希望對(duì)大家有所幫助。

    1、什么是IP地址?

    我們知道,在Internet上有千百萬臺(tái)主機(jī),為了區(qū)分這些主機(jī),人們給每臺(tái)主機(jī)都分配了一個(gè)專門的地址,稱為IP地址,IP地址是一個(gè)32位的二進(jìn)制數(shù),是將計(jì)算機(jī)連接到Internet 的網(wǎng)際協(xié)議地址,它是Internet主機(jī)的一種數(shù)字型標(biāo)識(shí),一般用小數(shù)點(diǎn)隔開的十進(jìn)制數(shù)表示,如168.160.66.119,而實(shí)際上并非如此。IP地址由網(wǎng)絡(luò)標(biāo)識(shí)(netid)和主機(jī)標(biāo)識(shí)(hostid)兩部分組成,網(wǎng)絡(luò)標(biāo)識(shí)用來區(qū)分Internet上互聯(lián)的各個(gè)網(wǎng)絡(luò),主機(jī)標(biāo)識(shí)用來區(qū)分同一網(wǎng)絡(luò)上的不同計(jì)算機(jī)(即主機(jī))。

    IP地址由4部分?jǐn)?shù)字組成,每部分都不大于256,各部分之間用小數(shù)點(diǎn)分開。

    如果是獨(dú)立IP,通過IP地址就可以訪問到網(wǎng)站主機(jī),例如“深圳之窗”的IP地址就是“119.147.50.92”,在您的瀏覽器上打入這個(gè)IP地址,就可以訪問到深圳之窗的主頁,使用獨(dú)立IP,穩(wěn)定和速度更有保障。

    2、IP地址分類

    1)、IP地址分為固定IP地址和動(dòng)態(tài)IP地址。

    固定IP地址,也可稱為靜態(tài)IP地址,是長期固定分配給一臺(tái)計(jì)算機(jī)使用的IP地址,一般是特殊的服務(wù)器才擁有固定IP地址。

    動(dòng)態(tài)IP地址,是因?yàn)镮P地址資源非常短缺,通過電話撥號(hào)上網(wǎng)或普通寬帶上網(wǎng)用戶一般不具備固定IP地址,而是由ISP動(dòng)態(tài)分配給暫時(shí)的一個(gè)IP地址。普通人一般不需要去了解動(dòng)態(tài)IP地址,這些都是計(jì)算機(jī)系統(tǒng)自動(dòng)分配完成的。

    2)、IP地址分為公有IP地址和私有IP地址。

    公有地址(Public address,也可稱為公網(wǎng)地址)由Internet NIC(Internet Network Information Center因特網(wǎng)信息中心)負(fù)責(zé)。這些IP地址分配給注冊(cè)并向Internet NIC提出申請(qǐng)的組織機(jī)構(gòu)。通過它直接訪問因特網(wǎng),它是廣域網(wǎng)范疇內(nèi)的。

    私有地址(Private address,也可稱為專網(wǎng)地址)屬于非注冊(cè)地址,專門為組織機(jī)構(gòu)內(nèi)部使用,它是局域網(wǎng)范疇內(nèi)的,出了所在局域網(wǎng)是無法訪問因特網(wǎng)的。

    留用的內(nèi)部私有地址目前主要有以下幾類:

    A類:10.0.0.0--10.255.255.255

    B類:172.16.0.0--172.31.255.255

    C類:192.168.0.0--192.168.255.255

    拓展:網(wǎng)絡(luò)IP地址的基本知識(shí)

    IP地址是IP協(xié)議提供的一種統(tǒng)一的地址格式,它為互聯(lián)網(wǎng)上的每一個(gè)網(wǎng)絡(luò)和每一臺(tái)主機(jī)分配一個(gè)邏輯地址,以此來屏蔽物理地址的差異。下面為大家介紹一些IP地址的基本知識(shí)!

    一、IP地址的概念

    我們知道因特網(wǎng)是全世界范圍內(nèi)的計(jì)算機(jī)聯(lián)為一體而構(gòu)成的通信網(wǎng)絡(luò)的.總稱。聯(lián)在某個(gè)網(wǎng)絡(luò)上的兩臺(tái)計(jì)算機(jī)之間在相互通信時(shí),在它們所傳送的數(shù)據(jù)包里都會(huì)含有某些附加信息,這些附加信息就是發(fā)送數(shù)據(jù)的計(jì)算機(jī)的地址和接受數(shù)據(jù)的計(jì)算機(jī)的地址。象這樣,人們?yōu)榱送ㄐ诺姆奖憬o每一臺(tái)計(jì)算機(jī)都事先分配一個(gè)類似我們?nèi)粘I钪械碾娫捥?hào)碼一樣的標(biāo)識(shí)地址,該標(biāo)識(shí)地址就是我們今天所要介紹的IP地址。根據(jù)TCP/IP協(xié)議規(guī)定,IP地址是由32位二進(jìn)制數(shù)組成,而且在INTERNET范圍內(nèi)是唯一的。例如,某臺(tái)聯(lián)在因特網(wǎng)上的計(jì)算機(jī)的IP地址為: 11010010 01001001 10001100 00000010 很明顯,這些數(shù)字對(duì)于人來說不太好記憶。人們?yōu)榱朔奖阌洃?,就將組成計(jì)算機(jī)的IP地址的32位二進(jìn)制分成四段,每段8位,中間用小數(shù)點(diǎn)隔開,然后將每八位二進(jìn)制轉(zhuǎn)換成十進(jìn)制數(shù),這樣上述計(jì)算機(jī)的IP地址就變成了:210.73.140.2。

    二、IP地址的分類

    靜態(tài)IP地址 是指給每一臺(tái)計(jì)算機(jī)都分配一個(gè)固定的IP地址,優(yōu)點(diǎn)是便于管理,特別是在根據(jù)IP地址限制網(wǎng)絡(luò)流量的局域網(wǎng)中,以固定的IP地址或IP地址分組產(chǎn)生的流量為依據(jù)管理,可以免除在按用戶方式計(jì)費(fèi)時(shí)用戶每次上網(wǎng)都必須進(jìn)行的身份認(rèn)證的繁瑣過程,同時(shí)也避免了用戶經(jīng)常忘記密碼的尷尬。靜態(tài)IP地址是長期分配給一臺(tái)計(jì)算機(jī)或網(wǎng)絡(luò)設(shè)備使用的IP地址。一般來說,采用專線上網(wǎng)的計(jì)算機(jī)才擁有固定的IP地址。

    動(dòng)態(tài)IP地址 通過Modem、ISDN、ADSL、有線寬頻、小區(qū)寬頻等方式上網(wǎng)的計(jì)算機(jī),在需要的時(shí)候才進(jìn)行IP地址分配的方式。當(dāng)你每一次上網(wǎng)時(shí),電信會(huì)隨機(jī)分配一個(gè)IP地址,每次上網(wǎng)所分配到的IP地址都不相同,這就是動(dòng)態(tài)IP地址。因?yàn)镮P地址資源很寶貴,大部分用戶都是通過動(dòng)態(tài)IP地址上網(wǎng)的。

    三、IP地址互聯(lián)網(wǎng)協(xié)議地址

    (英語:Internet Protocol Address,又譯為網(wǎng)際協(xié)議地址),縮寫為IP地址(IP Address)。通俗的來說:IP地址就是和人居住的地址是一回事,它這個(gè)IP地址就是給連接Internet上的電腦分配一個(gè)地址。通過設(shè)置IP地址才能與Internet通信的主機(jī)建立連接,這樣就可以通信上網(wǎng)了。

    四、ip地址是指什么

    IP地址

    IP地址是分配給連接到計(jì)算機(jī)網(wǎng)絡(luò)的每個(gè)設(shè)備的電子地址。IP首字母縮寫詞代表 Internet協(xié)議,通常由用戶的Internet服務(wù)提供商 (ISP) 發(fā)布,是Internet將用戶的搜索和查詢的數(shù)據(jù)和結(jié)果發(fā)回的地址。

    通常,IP地址以分層方式分配。它從國際數(shù)字分配機(jī)構(gòu) (IANA) 開始,IANA將IP地址分塊分配給不同的區(qū)域互聯(lián)網(wǎng)注冊(cè)機(jī)構(gòu)。每個(gè)區(qū)域互聯(lián)網(wǎng)注冊(cè)機(jī)構(gòu)進(jìn)一步將較小的IP地址塊分配給國家互聯(lián)網(wǎng)注冊(cè)機(jī)構(gòu)。接下來,每個(gè)國家的互聯(lián)網(wǎng)注冊(cè)機(jī)構(gòu)再將IP地址塊分配給各個(gè)ISP提供商。

    以上就是關(guān)于電腦ip地址是什么相關(guān)問題的回答。希望能幫到你,如有更多相關(guān)問題,您也可以聯(lián)系我們的客服進(jìn)行咨詢,客服也會(huì)為您講解更多精彩的知識(shí)和內(nèi)容。


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