diff --git a/check_netio b/check_netio
index df97ce8a33166ba8e9615ad2cf65ebe3afa30b2d..25f88fc3cd2f6ea59a38dc2ce5a5be6bfd0543c6 100755
--- a/check_netio
+++ b/check_netio
@@ -20,11 +20,12 @@
 export self_APPVERSION=1.6
 
 # network data without non physical interfaces to be removed from /proc/net/dev
-# - lo   - local
-# - bond - bonded interfaces
-# - ppp  - dialer connections
-# - cali - Kubernetes interfaces
-nonPhysicalInterfaces="(lo|bond.*|ppp.*|cali.*):"
+# - lo      - local
+# - bond    - bonded interfaces
+# - ppp     - dialer connections
+# - cali    - Kubernetes interfaces
+# - flannel - layer 3 fabric for Kubernetes
+nonPhysicalInterfaces="(lo|bond.*|ppp.*|cali.*|flannel.*):"
 
 # ----------------------------------------------------------------------
 # FUNCTIONS