daemon: Disable BPF host routing when L2-less detected

Until #15075 has been resolved. Signed-off-by: Martynas Pumputis <m@lambda.lt>
cilium · Mar 5, 2021 · 440480b · 440480b
1 parent 65a1aff
commit 440480b
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/daemon/cmd/kube_proxy_replacement.go b/daemon/cmd/kube_proxy_replacement.go
@@ -29,6 +29,7 @@ import (
 	"github.com/cilium/cilium/pkg/datapath/loader"
 	datapathOption "github.com/cilium/cilium/pkg/datapath/option"
 	"github.com/cilium/cilium/pkg/logging/logfields"
+	"github.com/cilium/cilium/pkg/mac"
 	"github.com/cilium/cilium/pkg/maglev"
 	"github.com/cilium/cilium/pkg/node"
 	"github.com/cilium/cilium/pkg/option"
@@ -434,6 +435,8 @@ func finishKubeProxyReplacementInit(isKubeProxyReplacementStrict bool) {
 		case (option.Config.EnableIPv4Masquerade || option.Config.EnableIPv6Masquerade) &&
 			!option.Config.EnableBPFMasquerade:
 			msg = fmt.Sprintf("BPF host routing requires %s.", option.EnableBPFMasquerade)
+		case !mac.HaveMACAddr(option.Config.Devices):
+			msg = fmt.Sprintf("BPF host routing is currently not supported with devices without L2 addr.")
 		default:
 			probesManager := probes.NewProbeManager()
 			foundNeigh := false