diff --git a/internal/bbsim/devices/olt.go b/internal/bbsim/devices/olt.go
index bfaa5fd..d0bc938 100644
--- a/internal/bbsim/devices/olt.go
+++ b/internal/bbsim/devices/olt.go
@@ -631,6 +631,7 @@
 	devinfo.FlowIdStart = 1
 	devinfo.FlowIdEnd = 16383
 	devinfo.DeviceSerialNumber = o.SerialNumber
+	devinfo.DeviceId = net.HardwareAddr{0xA, 0xA, 0xA, 0xA, 0xA, byte(o.ID)}.String()
 
 	return devinfo, nil
 }