子网A（192.168.137.0/24）有磷（192.168.137.1）和问（192.168.137.2）台电脑
子网乙（192.168.7.0/24）有问（192.168.7.1）和R（192.168.7.2）台电脑
磷我的 Windows 7 电脑是否通过接口 10 连接到互联网并连接到问通过接口 25
问（Linux）被设置为在A和乙。其默认网关设置为磷
R（Linux）的默认网关设置为问。
我能够路由来自磷（Win7）到子网乙通过问使用
route -p add 192.168.7.0 mask 255.255.255.0 192.168.137.2 metric 1 if 25
现在我可以 ping 了R（192.168.7.2）来自磷（我的 win7 电脑）但我无法 ping 通磷从R！我可以从R!!
C:\Windows\system32>路由打印
Interface List
11...00 1c 23 29 25 7e ......Broadcom NetXtreme 57xx Gigabit Controller
10...00 1c bf 9d 91 38 ......Intel(R) PRO/Wireless 3945ABG Network Connect
25...00 50 56 c0 00 01 ......VMware Virtual Ethernet Adapter for VMnet1
26...00 50 56 c0 00 08 ......VMware Virtual Ethernet Adapter for VMnet8
1...........................Software Loopback Interface 1
21...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
17...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
23...00 00 00 00 00 00 00 e0 Microsoft 6to4 Adapter
18...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
22...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3
24...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #4
20...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #5
===========================================================================
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 124.123.192.1 124.123.199.79 20
124.123.192.0 255.255.192.0 On-link 124.123.199.79 276
124.123.199.79 255.255.255.255 On-link 124.123.199.79 276
124.123.255.255 255.255.255.255 On-link 124.123.199.79 276
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.7.0 255.255.255.0 192.168.137.2 192.168.137.1 21
192.168.18.0 255.255.255.0 On-link 192.168.18.1 276
192.168.18.1 255.255.255.255 On-link 192.168.18.1 276
192.168.18.255 255.255.255.255 On-link 192.168.18.1 276
192.168.137.0 255.255.255.0 On-link 192.168.137.1 276
192.168.137.1 255.255.255.255 On-link 192.168.137.1 276
192.168.137.255 255.255.255.255 On-link 192.168.137.1 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 124.123.199.79 276
224.0.0.0 240.0.0.0 On-link 192.168.137.1 276
224.0.0.0 240.0.0.0 On-link 192.168.18.1 276
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 124.123.199.79 276
255.255.255.255 255.255.255.255 On-link 192.168.137.1 276
255.255.255.255 255.255.255.255 On-link 192.168.18.1 276
===========================================================================
Persistent Routes:
Network Address Netmask Gateway Address Metric
192.168.7.0 255.255.255.0 192.168.137.2 1
===========================================================================
IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
23 1275 ::/0 2002:c058:6301::c058:6301
23 1274 ::/0 2002:c058:6301::1
1 306 ::1/128 On-link
23 1025 2002::/16 On-link
23 281 2002:7c7b:c74f::7c7b:c74f/128
On-link
11 276 fe80::/64 On-link
25 276 fe80::/64 On-link
26 276 fe80::/64 On-link
11 276 fe80::7456:ab7f:70fa:3029/128
On-link
25 276 fe80::7c8a:b566:2a17:ccdb/128
On-link
26 276 fe80::e12e:9f18:a010:b07b/128
On-link
1 306 ff00::/8 On-link
11 276 ff00::/8 On-link
25 276 ff00::/8 On-link
26 276 ff00::/8 On-link
===========================================================================
Persistent Routes:
None
答案1
两个子网之间的路由应在 Q 上完成。您应该有一条从 NIC1 到 NIC2 的路由，以及一条从 NIC2 到 NIC1 的路由。这样您就不需要 P 上的路由了，所有计算机都能够互相 ping 通，并可以使用 P 作为网关访问互联网。
您没有告诉我们在 Q 上运行的 Linux 的版本。您可以通过 Google 找到适合您的 Linux 版本的静态路由信息。