源主机的IP地址为10.192.240.10,目标主机的IP地址为10.192.250.10。这两台主机是否位于同一网络上?如果是这样,我们如何找到它。
首先要了解的是网络掩码。如果不同的位在网络掩码的零范围内,则它们应在同一网络上路由。例如,我的家庭网络使用192.168.0.0/255.255.254.0
,这意味着192.168.0.0-192.168.1.255
由我的家庭路由器...路由的路由器192.168.1.10
与处于同一网络192.168.0.10
。
您也可以尝试从一个路由跟踪到另一个路由以确定多少跳。一跳意味着主机之间没有活动的路由,因此很可能是同一网络。
一跳,同一网络(kinda ..桌面是有线连接,远程是无线连接;但是从IP角度来看,是相同的):
paulw@desktop:~/PROJ$ traceroute 192.168.1.208
traceroute to 192.168.1.208 (192.168.1.208), 30 hops max, 60 byte packets
1 remote (192.168.1.208) 218.838 ms 219.288 ms 219.484 ms
paulw@desktop:~/PROJ$
多跳,不同的网络:
paulw@desktop:~/PROJ$ traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
1 router.asus.com (192.168.1.1) 0.232 ms 0.410 ms 0.485 ms
2 xx.xxx.xx.x (xx.xxx.xx.x) 161.662 ms 161.701 ms 161.701 ms
3 xe-10-3-3-32767-sur03.arvada.co.denver.comcast.net (68.86.129.153) 87.925 ms 87.963 ms 88.518 ms
4 te-0-13-0-2-ar02.denver.co.denver.comcast.net (162.151.8.41) 89.585 ms xe-10-0-2-0-sur02.arvada.co.denver.comcast.net (68.86.128.138) 89.493 ms te-0-13-0-2-ar02.denver.co.denver.comcast.net (162.151.8.41) 89.574 ms
5 pos-0-7-0-0-ar02.aurora.co.denver.comcast.net (68.86.128.246) 91.431 ms 92.441 ms 97.540 ms
6 he-3-9-0-0-cr01.denver.co.ibone.comcast.net (68.86.92.21) 92.421 ms 95.757 ms 96.290 ms
7 xe-1-0-2-0-pe01.910fifteenth.co.ibone.comcast.net (68.86.84.122) 159.017 ms 74.074 ms 74.119 ms
8 as15169-1-c.910fifteenth.co.ibone.comcast.net (23.30.206.106) 74.667 ms 73.637 ms 73.654 ms
9 72.14.234.59 (72.14.234.59) 74.204 ms 72.14.234.57 (72.14.234.57) 78.921 ms 72.14.234.59 (72.14.234.59) 77.861 ms
10 216.239.46.146 (216.239.46.146) 89.413 ms 216.239.46.150 (216.239.46.150) 84.180 ms 216.239.46.146 (216.239.46.146) 83.705 ms
11 216.239.46.55 (216.239.46.55) 88.090 ms 72.14.239.50 (72.14.239.50) 27.409 ms 81.115 ms
12 216.239.46.193 (216.239.46.193) 85.238 ms 216.239.46.191 (216.239.46.191) 81.420 ms 216.239.43.217 (216.239.43.217) 81.457 ms
13 * * *
14 google-public-dns-a.google.com (8.8.8.8) 82.888 ms 83.473 ms 85.024 ms
paulw@desktop:~/PROJ$
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我来说两句