Docker client "Default route is configured but sysctl operations failed"

[DyllasDek]

Describe the problem

I try to access docker private network with Netbird docker image. I've already configured route node. When I try to curl/ping/wget from another client, i get request timeout.
Also on startup of the docker image I get WARN client/internal/routemanager/systemops/systemops_linux.go:175: Default route is configured but sysctl operations failed, VPN traffic may not be routed correctly, consider using NB_USE_LEGACY_ROUTING=true or setting net.ipv4.conf.*.rp_filter to 2 (loose) or 0 (off)

To Reproduce

Steps to reproduce the behavior:

1. Install client with netbird docker
2. Connect peer with each other
3. Configure route

Expected behavior

I should access private docker network

Are you using NetBird Cloud?

NetBird self-hosted

NetBird version

0.30.1

Screenshots
Another client try to connect to private docker network:

Docker Netbird warn:

[nazarewk]

Hello @DyllasDek,

We're currently reviewing our open issues and would like to verify if this problem still exists in the latest NetBird version.

Could you please confirm if the issue is still there?

We may close this issue temporarily if we don't hear back from you within 2 weeks, but feel free to reopen it with updated information.

Thanks for your contribution to improving the project!