第一步：确定要检索的大学
比如哈佛大学
http://www.harvard.edu第二步：解析
www.harvard.edu 成IP地址
可以用CMD方式：nslookup
www.harvard.edu Non-authoritative answer:
Name:
www.harvard.edu Address: 128.103.60.24
第三步：把IP 128.103.60.24 输入到
http://www.arin.net的搜索框
结果：OrgName: Harvard University
OrgID: HARVAR
Address: UIS Network Operations Center
Address: Jay Tumas - Network Operations Manager
Address: 60 Oxford Street
Address: Suite 132
City: Cambridge
StateProv: MA
PostalCode: 02138
Country: US
第四步：把OrgName的值 Harvard University 再输入搜索框,结果就是哈佛大学的所有IP列表,一个都不会漏掉。
Harvard University HBS-21 (NET-199-94-21-0-1) 199.94.21.0 - 199.94.21.255
Harvard University HBS-34 (NET-199-94-34-0-1) 199.94.34.0 - 199.94.34.255
Harvard University HBS-36 (NET-199-94-36-0-1) 199.94.36.0 - 199.94.36.255
Harvard University HBS-38 (NET-199-94-38-0-1) 199.94.38.0 - 199.94.38.255
Harvard University HBS-40 (NET-199-94-40-0-1) 199.94.40.0 - 199.94.40.255
Harvard University HBS-42 (NET-199-94-42-0-1) 199.94.42.0 - 199.94.42.255
Harvard University HBS-44 (NET-199-94-44-0-1) 199.94.44.0 - 199.94.44.255
Harvard University HBS-43 (NET-199-94-43-0-1) 199.94.43.0 - 199.94.43.255
Harvard University HBS-47 (NET-199-94-47-0-1) 199.94.47.0 - 199.94.47.255
Harvard University HBS-46 (NET-199-94-46-0-1) 199.94.46.0 - 199.94.46.255
Harvard University HBS-45 (NET-199-94-45-0-1) 199.94.45.0 - 199.94.45.255
Harvard University HBS-41 (NET-199-94-41-0-1) 199.94.41.0 - 199.94.41.255
Harvard University HBS-39 (NET-199-94-39-0-1) 199.94.39.0 - 199.94.39.255
Harvard University HBS-37 (NET-199-94-37-0-1) 199.94.37.0 - 199.94.37.255
Harvard University HBS-35 (NET-199-94-35-0-1) 199.94.35.0 - 199.94.35.255
Harvard University HBS-32 (NET-199-94-32-0-1) 199.94.32.0 - 199.94.32.255
Harvard University HBS-33 (NET-199-94-33-0-1) 199.94.33.0 - 199.94.33.255
Harvard University HARVARD-UNIV (NET-128-103-0-0-1) 128.103.0.0 - 128.103.255.255
Harvard University HARV-NET (NET-192-5-66-0-1) 192.5.66.0 - 192.5.66.255
Harvard University HARV-EXT-NET (NET-192-54-223-0-1) 192.54.223.0 - 192.54.223.255
Harvard University HARVARD-64 (NET-204-166-64-0-1) 204.166.64.0 - 204.166.64.255
Harvard University HARVARD-65 (NET-204-166-65-0-1) 204.166.65.0 - 204.166.65.255
Harvard University HARVARD-66 (NET-204-166-66-0-1) 204.166.66.0 - 204.166.66.255
Harvard University HARVARD-67 (NET-204-166-67-0-1) 204.166.67.0 - 204.166.67.255
Harvard University HARVARD-68 (NET-204-166-68-0-1) 204.166.68.0 - 204.166.68.255
Harvard University HARVARD-69 (NET-204-166-69-0-1) 204.166.69.0 - 204.166.69.255
Harvard University HARVARD-70 (NET-204-166-70-0-1) 204.166.70.0 - 204.166.70.255
Harvard University HARVARD-71 (NET-204-166-71-0-1) 204.166.71.0 - 204.166.71.255
Harvard University HARVARD-72 (NET-204-166-72-0-1) 204.166.72.0 - 204.166.72.255
Harvard University HARVARD-73 (NET-204-166-73-0-1) 204.166.73.0 - 204.166.73.255
Harvard University HARVARD-74 (NET-204-166-74-0-1) 204.166.74.0 - 204.166.74.255
Harvard University HARVARD-75 (NET-204-166-75-0-1) 204.166.75.0 - 204.166.75.255
Harvard University HARVARD-76 (NET-204-166-76-0-1) 204.166.76.0 - 204.166.76.255
Harvard University HARVARD-77 (NET-204-166-77-0-1) 204.166.77.0 - 204.166.77.255
Harvard University HARVARD-78 (NET-204-166-78-0-1) 204.166.78.0 - 204.166.78.255
Harvard University HARVARD-79 (NET-204-166-79-0-1) 204.166.79.0 - 204.166.79.255
Harvard University HARVARD-80 (NET-204-166-80-0-1) 204.166.80.0 - 204.166.80.255
Harvard University HARVARD-81 (NET-204-166-81-0-1) 204.166.81.0 - 204.166.81.255
Harvard University HARVARD-82 (NET-204-166-82-0-1) 204.166.82.0 - 204.166.82.255
Harvard University HARVARD-83 (NET-204-166-83-0-1) 204.166.83.0 - 204.166.83.255
Harvard University HARVARD-84 (NET-204-166-84-0-1) 204.166.84.0 - 204.166.84.255
Harvard University HARVARD-85 (NET-204-166-85-0-1) 204.166.85.0 - 204.166.85.255
Harvard University HARVARD-86 (NET-204-166-86-0-1) 204.166.86.0 - 204.166.86.255
Harvard University HARVARD-87 (NET-204-166-87-0-1) 204.166.87.0 - 204.166.87.255
Harvard University HARVARD-88 (NET-204-166-88-0-1) 204.166.88.0 - 204.166.88.255
Harvard University HARVARD-89 (NET-204-166-89-0-1) 204.166.89.0 - 204.166.89.255
Harvard University HARVARD-90 (NET-204-166-90-0-1) 204.166.90.0 - 204.166.90.255
Harvard University HARVARD-91 (NET-204-166-91-0-1) 204.166.91.0 - 204.166.91.255
Harvard University HARVARD-92 (NET-204-166-92-0-1) 204.166.92.0 - 204.166.92.255
Harvard University HARVARD-93 (NET-204-166-93-0-1) 204.166.93.0 - 204.166.93.255
Harvard University HARVARD-94 (NET-204-166-94-0-1) 204.166.94.0 - 204.166.94.255
Harvard University HARVARD-95 (NET-204-166-95-0-1) 204.166.95.0 - 204.166.95.255
Harvard University HARVARD-480 (NET-12-0-48-0-1) 12.0.48.0 - 12.0.63.255
Harvard University HARVARD-2080 (NET-12-6-208-0-1) 12.6.208.0 - 12.6.223.255
Harvard University LHASA (NET-192-43-216-0-1) 192.43.216.0 - 192.43.216.255
Harvard University NET-HARV-HRCA (NET-192-5-89-0-1) 192.5.89.0 - 192.5.89.255
Harvard University HARVARD-COLL (NET-140-247-0-0-1) 140.247.0.0 - 140.247.255.255
Harvard University ABILENE-NOX-V6 (NET6-2001-468-600-1) 2001:0468:0600:0000:0000:0000:0000:0000 - 2001:0468:06FF:FFFF:FFFF:FFFF:FFFF:FFFF
Harvard University QWEST-63-236-172-112 (NET-63-236-172-112-1) 63.236.172.112 - 63.236.172.119
Harvard University QWEST-63-236-172-136 (NET-63-236-172-136-1) 63.236.172.136 - 63.236.172.143
Harvard University QWEST-63-236-172-152 (NET-63-236-172-152-1) 63.236.172.152 - 63.236.172.159
Harvard University QWEST-63-236-172-128 (NET-63-236-172-128-1) 63.236.172.128 - 63.236.172.135
Harvard University HARVU-WSTR (NET-63-141-253-176-1) 63.141.253.176 - 63.141.253.183
Harvard University QWEST-65-112-0 (NET-65-112-0-0-2) 65.112.0.0 - 65.112.15.255
Harvard University TIAC-20611994-5 (NET-206-119-94-0-1) 206.119.94.0 - 206.119.95.255
Harvard University NORTH-EAST-DATA-216-235-250-BELFERCENTER (NET-216-235-250-208-1) 216.235.250.208 - 216.235.250.215
Harvard University CTEDNET-NOX-207-210-142-0 (NET-207-210-142-0-1) 207.210.142.0 - 207.210.142.255
Harvard University CTEDNET-NOX-207-210-143-0 (NET-207-210-143-0-1) 207.210.143.0 - 207.210.143.255
Harvard University Fac C067117244016020417 (NET-67-117-244-16-1) 67.117.244.16 - 67.117.244.23
