Docker Desktop Windows and VPN - no network connection inside container

Docker Desktop for Windows
1

I’m trying to use Docker on Windows while being connected to VPN.

When VPN is not connected, everything works OK.

But when I connect to our corporate VPN using Cisco AnyConnect client, network inside docker container is not working anymore:

docker run alpine ping www.google.com
ping: bad address 'www.google.com'

docker run alpine ping -c 5 216.58.204.36
PING 216.58.204.36 (216.58.204.36): 56 data bytes
--- 216.58.204.36 ping statistics ---
5 packets transmitted, 0 packets received, 100% packet loss

How to fix this issue and make it work?

My setup is:

  • Windows 10 Version 1809 (OS Build 17763.1098)
  • Docker Desktop Community 2.2.0.4 (43472): Engine 19.03.8, Compose 1.25.4, Kubernetes 1.15.5, Notary 0.6.1, Credential Helper 0.6.3
  • Docker is in Windows containers mode with experimental features enabled (needed to run windows and linux images at the same time)
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