The Windows system adds static routes.
A few days ago, there was a network topology, and the server needed to configure multiple network cards to communicate with multiple services. After configuring multiple IP addresses, you can only access the primary IP address, and the secondary IP cannot ping another network segment when configured to another network port. After testing with PC, it is completely OK. It is suspected that the server does not recognize multiple gateways very well (but PC is normal...). Use route add command to add static route of server exit. After adding, you need to set IF to be the exit interface of route (it needs to be a numerical number). This numerical number is displayed in the interface list after entering route prinet command, so that IF parameter can be written accordingly. interface list
12... 1c 1b 0d 60 4f d5 ...... Intel(R) Ethernet Connection (2) I219-V
13... 0a 00 27 00 00 0d ...... VirtualBox Host-Only Ethernet Adapter
1........................... Software Loopback Interface 1
11... 00 00 00 00 00 00 00 e0 Microsoft Teredo Tunneling Adapter