Linux:Kernel:Module:br netfilter
lastmod 2025-12-16created 2025-12-162 edits
This module lets traffic on bridge networks be filtered with iptables.
Why Kubernetes needs it
Pod A (10.244.1.5)
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Container Network (Bridge)
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iptables 규칙 적용 ← br_netfilter가 이를 가능하게 함
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Pod B (10.244.2.3)
Kubernetes network policies, Service routing, and so on use iptables, and this module is needed to apply iptables rules to traffic that passes through bridge networks as well.