How to make a service not in any VRF domain to work across all possible VRF domains.
Issue
Let's assume there is a service running under a default VRF context.
The service is TCP/UDP or even RAW socket based.
This means that such a service is not running under any VRF context at all.
How to make such a service run in the default VRF context as well as in any possibly defined VRF contexts on the system.
Environment
All rhel versions.
A VRF context is defined in the system.
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