How to Fix the IP Address of the Guest OS in Virtualbox

I would like to install Windows 7 on Virtualbox and set up a server on Windows 7 in the guest operating system.
　Host OS:Ubuntu
　Guest OS: Windows 7

However, I fixed the IP of Windows 7 in the guest operating system using the following procedure, but the network is inaccessible.I'd like some advice.

Launch Guest OS Windows 7 and
in Ubuntu Verify that ping 192.168.56.1 passes and
　　The guest OS then configured the following to fix the IP address, but cannot connect to the network.

The current situation is as follows.
　　　·Pinging from the host OS (192.168.11.10) to the guest OS (192.168.56.2) does not go through.
　　　·Pinging from guest OS (192.168.56.2) to host OS (192.168.11.10) is not possible.
　　　　Disabling the Windows 7 side firewall in the guest operating system did not change the symptom.