已知IP地址网络号和子网掩码能求出可用IP吗
\u5df2\u77e5IP\u5730\u5740\u548c\u5b50\u7f51\u63a9\u7801 \u6c42\u7f51\u7edc\u53f7\u3001\u5b50\u7f51\u53f7\u3001\u4e3b\u673a\u53f7IP\u4e3aC\u7c7b\uff0c\u4e00\u77e5\u9053\u5b50\u7f51\u63a9\u7801\u503c\u662f224 \u6240\u4ee5\u7f51\u7edc\u88ab\u5212\u5206\u4e3a8\u4e2a\u5b50\u7f51\uff0c\u6c42\u7f51\u7edc\u53f7\u662f\u7528\u5c06\u4f60\u7684IP\u8f6c\u4e3a\u4e8c\u8fdb\u523611000011.10101001.00010100.00110010\u548c\u539f\u5b50\u7f51\u63a9\u7801255.255.255.0\u7684\u4e8c\u8fdb\u523611111111.11111111.11111111.00000000\u8fdb\u884c\u903b\u8f91\u4e0e\u8fd0\u7b97\u5f97\u523011000011.10101001.00010100.00000000\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\u4e3a195.169.20.0
\u5b50\u7f51\u53f7\u5219\u662f\u7528IP\u548c\u65b0\u7684\u5b50\u7f51\u63a9\u7801255.255.255.224\u8fdb\u884c\u903b\u8f91\u4e0e\u4e5f\u662f\u8f6c\u4e3a\u4e8c\u8fdb\u5236\u5728\u4e0e\u5f97\u5230195.169.20.32 \uff0c\u4e3b\u673a\u53f7\u7684\u8ba1\u7b97\u662f\u628a\u65b0\u5b50\u7f51\u63a9\u7801255.255.255.224\u8f6c\u4e3a\u4e8c\u8fdb\u5236\u540e\u53d6\u53cd\uff0c\u5c31\u662f\u628a0\u53d81 \uff0c1\u53d80\uff0c\u7136\u540e\u518d\u548cIP\u7684\u4e8c\u8fdb\u5236\u8fdb\u884c\u903b\u8f91\u4e0e\u8fd0\u7b97\u5f97\u5230\u4e3b\u673a\u53f7\u4e3a0.0.0.18 \u3002\u5c31\u662f195.169.20.32\u7f51\u6bb5\u7684\u7b2c18\u53f7
\u9996\u5148\u5c06\u7f51\u7edc\u7684IP\u5730\u5740\u548c\u5b50\u7f51\u63a9\u7801\u90fd\u8f6c\u6362\u621032\u4f4d\u4e8c\u8fdb\u5236\u5b57\u7b26\u3002
\u5c06\u8f6c\u6362\u540e\u7684\u4e8c\u8fdb\u5236\u7684IP\u5730\u5740\u548c\u5b50\u7f51\u63a9\u7801\u8fdb\u884c\u201c\u903b\u8f91\u4e0e\u201d\u8fd0\u7b97\uff0c\u5f97\u5230\u65b0\u768432\u4f4d\u4e8c\u8fdb\u5236\u5b57\u7b26\u3002
\u628a\u5f97\u5230\u7684\u65b0\u768432\u4f4d\u4e8c\u8fdb\u5236\u5b57\u7b26\u8f6c\u6362\u6210\u5341\u8fdb\u5236\uff0c\u5c31\u662f\u4e3b\u673a\u7684\u7f51\u7edc\u53f7\u4e86\u3002
\u4e3e\u4f8b\u5982\u4e0b\uff1a
\u672c\u673aIP\u4e3a192.168.1.16 \uff0c\u5b50\u7f51\u63a9\u7801\u4e3a255.255.255.0
\u8f6c\u6362\u6210\u4e8c\u8fdb\u5236\uff1a
\u672c\u673aIP\u4e3a11000000.10101000.00000001.00010000
\u5b50\u7f51\u63a9\u780111111111.11111111.11111111.00000000
\u8fdb\u884c\u201c\u4e0e\u8fd0\u7b97\u201c 11000000.10101000.00000001.00000000
\u8f6c\u6362\u6210\u5341\u8fdb\u5236\uff1a192.168.1.0
\u5373192.168.1.0\u4e3a\u4e3b\u673a\u7684\u7f51\u7edc\u53f7\u3002
\u6ce8\u610f\u4e8b\u9879\uff1a\u903b\u8f91\u4e0e\u8fd0\u7b97\u7684\u89c4\u5219\uff1a
0\u22270 =0
0\u22271=0
1\u22270=0
1\u22271=1
非常能非常能
绛旓細鍙互锛屼粠瀛愮綉鎺╃爜灏卞彲浠ユ眰鍑鸿繖涓綉缁滅殑ip鍦板潃鏁帮紝鍙敤ip鍑2灏辫浜嗭紝 姣斿缃戠粶鍙192.168.1.0,鎺╃爜255.255.255.224,鍙敤ip鏁版槸256-224-2=30 锛屽彲鐢╥p浠192.168.1.1鍒192.168.1.30銆
绛旓細IP锛195.169.20.50瀛愮綉鎺╃爜锛255.255.255.224鎺╃爜涓1鐨勪釜鏁拌〃绀虹綉缁滃瓧娈典綅鏁0鐨勪釜鏁拌〃绀轰富鏈哄瓧娈典綅鏁帮紝255鍏ㄦ槸1锛224鍙樹负浜岃繘鍒11100000锛屾墍浠ョ鍥涗釜瀛楄妭鍓嶄笁涓瘮鐗瑰睘浜庣綉缁滃瓧娈碉紝鍚庝簲涓瘮鐗瑰睘浜庝富鏈哄瓧娈点缃戠粶鍙灏辨槸缃戠粶瀛楁涓嶅彉涓绘満瀛楁鍏ㄢ0鈥濈鍥涗釜瀛楄妭50鍙樹负浜岃繘鍒00110010锛屽墠涓変釜涓嶅彉锛屽悗浜...
绛旓細棣栧厛浠IP鍦板潃鍙互鐭ラ亾杩欐槸灞鍩熺綉锛屼负C绫籌P鍦板潃锛孋绫籌P鍦板潃鑼冨洿鏄192.168.0.0锝192.168.255.255锛屽彲瀹圭撼254鍙拌绠楁満銆
绛旓細濡傞:缃戞192.168.1.0/24.鎯冲垝鍒嗕负8涓瓙缃,姣忎釜瀛愮綉涓渶瑕佹湁20鍙颁富鏈,璁＄畻瀛愮綉鎺╃爜闀垮害,缃戠粶鍦板潃,骞挎挱鍦板潃,鍙敤鑼冨洿鍦板潃. 瑙:192.168.1.0鏄竴涓狢绫诲湴鍧,瀛愮綉鎺╃爜搴旇涓255.255.255.M,鑰20鍙颁富鏈哄湪16(2^4)涓32(2^5)涔嬮棿,鏁匨鍙栧悗浜斾綅涓轰富鏈烘,鍓嶄笁浣嶄负瀛愮綉娈,M=11100000=128+64+32=224. 瀛愮綉鎺╃爜涓:...
绛旓細168.20.128銆5. 鍥犳锛屼富鏈哄彿涓0.0.0.2锛岃繖琛ㄦ槑鍦ㄧ綉缁192.168.20.0/26涓紝130鏄浜屼釜涓绘満鍦板潃銆6. 鍦IP鍦板潃鍒嗙被涓紝C绫诲湴鍧鐨勯粯璁缃戠粶鍙涓24浣嶏紝鍥犳缃戠粶鍙蜂负192.168.20.0銆7. 缁欏畾鐨瀛愮綉鎺╃爜琛ㄦ槑瀛愮綉鍙蜂负8浣嶏紝鍗冲瓙缃戝彿涓0.0.0.128銆8. 濡傛湁鐤戦棶锛屾杩庢彁闂紝绁濊冭瘯椤哄埄銆
绛旓細1銆侀鍏堝皢缃戠粶鐨処P鍦板潃鍜屽瓙缃戞帺鐮閮借浆鎹㈡垚32浣嶄簩杩涘埗瀛楃銆2銆佸皢杞崲鍚庣殑浜岃繘鍒剁殑IP鍦板潃鍜屽瓙缃戞帺鐮佽繘琛屸滈昏緫涓庘濊繍绠楋紝寰楀埌鏂扮殑32浣嶄簩杩涘埗瀛楃銆3銆佹妸寰楀埌鐨勬柊鐨32浣嶄簩杩涘埗瀛楃杞崲鎴愬崄杩涘埗锛屽氨鏄富鏈虹殑缃戠粶鍙浜嗐備緥濡傦細鏈満IP涓192.168.1.16 锛屽瓙缃戞帺鐮佷负255.255.255.0 杞崲鎴愪簩杩涘埗锛氭湰鏈...
绛旓細缃戠粶鍙涓猴細192.168.10.0銆傝绠楄繃绋嬶細鎷IP鍦板潃192.168.10.2涓庡瓙缃戞帺鐮255.255.255.0鐩镐笌寰楀埌缃戠粶鍙蜂负192.168.10.0銆傚箍鎾彿涓猴細192.168.10.255銆傚箍鎾彿涓虹綉缁滃彿骞朵笖涓绘満鍙峰叏涓1锛屽垯涓鸿缃戠粶鐨勫箍鎾彿锛屾墍浠ュ箍鎾彿涓192.168.10.255銆傛湁鏁堜富鏈虹殑IP鑼冨洿锛192.168.10.1~192.168.10.254銆
绛旓細闂涓銆宸茬煡IP鍜屽瓙缃戞帺鐮锛屾眰缃戠粶浣嶃佷富鏈轰綅鏂规硶濡備笅锛氫妇渚嬶細I P 鍦板潃锛121.40.81.200 瀛愮綉鎺╃爜: 255.255.252.0 1銆佸厛鎶IP鍦板潃鍜屽瓙缃戞帺鐮杞崲鎴愪簩杩涘埗 I P 鍦板潃锛121.40.81.200 杞崲浜岃繘鍒 01111001.00101000.01010001.11001000 瀛愮綉鎺╃爜锛255.255.252.0 杞崲浜岃繘鍒 11111111.11111111....
绛旓細瀹炰緥濡備笅锛欼P锛192.168.1.5锛屽瓙缃戞帺鐮255.255.255.192銆傞鍏鏍规嵁瀛愮綉鎺╃爜255.255.255.192鍙‘瀹氳IP鍦板潃涓綉缁滀负鍗犲墠26浣嶏紝涓绘満浣嶅崰鍚6浣嶃傚彲浠ョ‘瀹氫富鏈哄彿浣0.0.0.5;鍏舵IP锛192.168.1.5灞炰簬C绫籌P鍦板潃锛岄粯璁ゅ瓙缃戞帺鐮佷负24浣嶏紝鐜扮敤瀛愮綉鎺╃爜涓26浣嶃傚垯鍙‘瀹氳IP鍦板潃鐨勭綉缁滃彿浣192.168.1....
绛旓細宸茬煡IP鍦板潃鍜屽瓙缃戞帺鐮锛岀敤IP鐨勪簩杩涘埗涓庡瓙缃戞帺鐮鐨勪簩杩涘埗鏁版嵁浣'涓'杩愮畻锛屽氨鍙互寰楀埌缃戞鍦板潃銆傚師棰樿绠楃殑缃戞鍦板潃绛旀鏄纭殑銆傚叿浣撴楠ゅ涓嬶細1銆佹妸IP鍦板潃杞崲鎴愪簩杩涘埗鏁帮細199.32.59.64=11000111.100000.111011.1000000锛2銆佹妸瀛愮綉鎺╃爜杞崲鎴愪簩杩涘埗鏁帮細255.255.255.224=11111111.11111111.11111111...
