google filestore hybrid environment

[Dave Young]

have you successfully connected a google filestore instance with on-premise servers in your hybrid environment?

if so, were there any eureka moments or gotchas along the way?

my organisation is trying to mount a google filestore nfs share on premise via an expressroute/VPN connection. local VMs can communicate with the filestore no problem and on premise traffic is being routed to GCP but the packets die/turn around at the VPN routers.

[Fady (Google Cloud Platform)]

To troubleshoot this issue, we suggest verifying the following: 

1.Firewall rules configured in both GCP [1] [2] and on-prem end. 

2.You could use MTR [3],[4] for further troubleshooting to find the exact network hop where the packet is dropping. 

Furthermore, we recommend consulting this VPN troubleshooting guide as it might provide some additional guidance to isolate the root cause and resolve it accordingly. Note also and per this document about limitations,  “Clients with an IP address from the 172.17.0.0/16 range can't connect to Cloud Filestore instances” .

As this is a technical question, and as this forum is meant for general questions about the platform, please post your question at serverfault.com where you have access to a large community of enthusiasts and experts to share ideas with and get support from.