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 Qradar duplicate subnets issue

Michail Christof's profile image
Michail Christof posted Wed May 13, 2026 07:11 AM

Hello everyone,

I would like to ask for recommendations/best practices regarding overlapping internal networks in QRadar.

Ι have aν environment where the same internal subnet is used in different remote sites/networks. For example, the subnet 192.168.10.0/24 exists in more than one location (one of them is a Guest network).

The issue is that QRadar detects the subnet as duplicate in the Network Hierarchy, so we cannot create separate entries for each network/site.

Has anyone handled a similar scenario in QRadar?

Any recommendations or design approaches would be greatly appreciated.

Thanks for your time.