Parent Prefix in Global with Child Prefix in VRF creates orphan Prefix #318

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opened 2025-12-29 16:20:49 +01:00 by adam · 1 comment
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Originally created by @DanSheps on GitHub (Aug 2, 2016).

When adding child prefixes to parent prefixes where the child is in a separate VRF then the parent, this causes a orphan prefix where the only access to it is through that VRF. The orphan prefix isn't visible in the prefix list, because the prefix list table considers it a child even though it is in a different VRF.

I ran into this where I placed a parent prefix (/22) in the global VRF, because it isn't assigned to any one single VRF and then put in the child prefix in the individual VRF's.

I am assuming this is based on the fact that you determine a child/parent relationship by VRF and prefix.
#395 discusses changing the functionality of the global prefix, and this is a separate issue from that

Originally created by @DanSheps on GitHub (Aug 2, 2016). When adding child prefixes to parent prefixes where the child is in a separate VRF then the parent, this causes a orphan prefix where the only access to it is through that VRF. The orphan prefix isn't visible in the prefix list, because the prefix list table considers it a child even though it is in a different VRF. I ran into this where I placed a parent prefix (/22) in the global VRF, because it isn't assigned to any one single VRF and then put in the child prefix in the individual VRF's. I am assuming this is based on the fact that you determine a child/parent relationship by VRF and prefix. #395 discusses changing the functionality of the global prefix, and this is a separate issue from that
adam added the status: duplicate label 2025-12-29 16:20:49 +01:00
adam closed this issue 2025-12-29 16:20:50 +01:00
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@jeremystretch commented on GitHub (Aug 2, 2016):

This will be covered by whatever work is done to resolve #395 so I'm going to mark this as a duplicate.

@jeremystretch commented on GitHub (Aug 2, 2016): This will be covered by whatever work is done to resolve #395 so I'm going to mark this as a duplicate.
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Reference: starred/netbox#318