ipv6shiinternet protocol version 6desuoxie,tashiietfshejideyongyutidaixianxingbanbenipxieyi-ipv4-dexiayidaiipxieyi。muqiandequanqiuyintewangsuocaiyongdexieyizushitcp/ipxieyizu。ipshitcp/ipxieyizuzhongwangluocengdexieyi,shitcp/ipxieyizudehexinxieyi。ipv6zhengchuzaibuduanfazhanhewanshandeguochengzhong,tazaibujiudejianglaijiangqudaimuqianbeiguangfanshiyongdeipv4。meigerenjiangyongyougengduoipdizhi。
简介
muqianyaboappshiyongdedierdaihulianwangipv4jishu,hexinjishushuyumeiguo。tadezuidawentishiwangluodizhiziyuanyouxian,conglilunshangjiang,bianzhi1600wangewangluo、40yitaizhuji。dancaiyonga、b、csanleibianzhifangshihou,keyongdewangluodizhihezhujidizhideshumudadazhekou,yizhimuqiandeipdizhijinhukujie。qizhongbeimeizhanyou3/4,yue30yige,errenkouzuiduodeyazhouzhiyoubudao4yige,zhongguojiezhi2010nian6yueipv4dizhishuliangdadao2.5yi,luohouyu4.2yiwangmindexuqiu。dizhibuzu,yanzhongdizhiyuelewoguojiqitaguojiahulianwangdeyingyonghefazhan。
yifangmianshidizhiziyuanshuliangdexianzhi,lingyifangmianshisuizhedianzijishujiwangluojishudefazhan,jisuanjiwangluojiangjinrurenmenderichangshenghuo,kenengshenbiandemeiyiyangdongxidouxuyaolianruquanqiuyintewang。zaizheiyangdehuanjingxia,ipv6yingyunersheng。dancongshuzishanglaishuo,ipv6suoyongyoudedizhirongliangshiipv4deyue8×10^28bei,dadao2^128(suanshangquanlingde)ge。zheibudanjiejuelewangluodizhiziyuanshuliangdewenti,tongshiyeweichudiannaowaideshebeilianruhulianwangzaishuliangxianzhishangsaoqinglezhangai。danshiyuipv4yiyang,ipv6yiyanghuizaochengdaliangdeipdizhilangfei。zhunquedeshuo,shiyong ipv6dewangluobingmeiyou2^128genengchongfenliyongdedizhi。shouxian,yaoshixianipdizhidezidongpeizhi,juyuwangsuoshiyongdeziwangdeqianzhuibixudengyu64,danshihenshaoyouyigejuyuwangnengrongna2^64gewangluozhongduan;qici,youyuipv6dedizhifenpeibixuzunxunjuleideyuanze,dizhidelangfeizaisuonanmian。danshi,ruguoshuoipv4shixiandezhishirenjiduihua,eripv6zekuozhandaorenyishiwuzhijiandeduihua,tabujinkeyiweirenleifuwu,haijiangfuwuyuzhongduoyingjianshebei,rujiayongdianqi、chuanganqi、yuanchengzhaoxiangji、qichedeng,tajiangshiwushibuzai,wuchubuzaideshenrushehuimeigejiaoluodezhenzhengdekuandaiwang。erqietasuodailaidejingjixiaoyijiangfeichangjuda。dangran,ipv6bingfeishiquanshimei、yilaoyongyi,bukenengjiejuesuoyouwenti。ipv6zhinengzaifazhanzhongbuduanwanshan,yebukenengzaiyiyezhijianfasheng,guoduxuyaoshijianhechengben,dancongzhangyuankan,ipv6youliyuhulianwangdechixuhezhangjiufazhan。 muqian,guojihulianwangzuzhiyijingjuedingchenglilianggezhuanmengongzuozu,zhidingxiangyingdeguojibiaozhun。
特点:
(1)ipv6dizhizhangduwei128bite,dizhikongjianzengdale2de96cifangbei;
(2)linghuodeipbaowentoubugeshi。shiyongyixiliegudinggeshidekuozhantoubuqudaileipv4zhongkebianzhangdudexuanxiangziduan。ipv6zhongxuanxiangbufendechuxianfangshiyeyousuobianhua,shiluyouqikeyijiandanluguoxuanxiangerbuzuorenhechuli,jiakuailebaowenchulisudu;
(3)ipv6jianhualebaowentoubugeshi,ziduanzhiyou7ge,jiakuaibaowenzhuanfa,tigaoletuntuliang;
(4)tigaoanquanxing。shenfenrenzhengheyinsiquanshiipv6deguanjiantexing;
亚博APP(5)zhichigengduodefuwuleixing;
(6)yunxuxieyijixuyanbian,zengjiaxindegongneng,shizhishiyingweilaijishudefazhan;
优势: 与IPV4相比,IPV6具有以下几个优势:
亚博APPyi、pv6juyougengdadedizhikongjian。ipv4zhongguidingipdizhizhangduwei32,jiyou2^32-1(fuhao^biaoshishengmi,xiatong)gedizhi;eripv6zhongipdizhidezhangduwei128,jiyou2^128-1gedizhi。
亚博APPer、ipv6shiyonggengxiaodeluyoubiao。ipv6dedizhifenpeiyikaishijiuzunxunjulei(aggregation)deyuanze,zheishideluyouqinengzailuyoubiaozhongyongyitiaojilu(entry)biaoshiyipianziwang,dadajianxiaoleluyouqizhongluyoubiaodezhangdu,tigaoleluyouqizhuanfashujubaodesudu。
亚博APPsan、ipv6zengjialezengqiangdezubo(multicast)zhichiyijiduiliudezhichi(flow control),zheishidewangluoshangdeduomeitiyingyongyoulezhangzufazhandejihui,weifuwuzhiliang(qos,quality of service)kongzhitigonglelianghaodewangluopingtai。
亚博APPsi、pv6jiaruleduizidongpeizhi(auto configuration)dezhichi。zheishiduidhcpxieyidegaijinhekuozhan,shidewangluo(youqishijuyuwang)deguanligengjiafangbianhekuaijie。
亚博APPwu、ipv6juyougenggaodeanquanxing。zaishiyongipv6wangluozhongyonghukeyiduiwangluocengdeshujujinxingjiamibingduiipbaowenjinxingxiaoyan,jidadezengqianglewangluodeanquanxing。