diff --git a/examples/gnrc_border_router/Makefile b/examples/gnrc_border_router/Makefile
index d013956ac4..27c0a4c847 100644
--- a/examples/gnrc_border_router/Makefile
+++ b/examples/gnrc_border_router/Makefile
@@ -87,6 +87,8 @@ ifeq (,$(filter native,$(BOARD)))
     include $(CURDIR)/Makefile.wifi.conf
   endif
 else
+  # The number of native (emulated) ZigBee/6LoWPAN devices
+  ZEP_DEVICES ?= 1
   include $(CURDIR)/Makefile.native.conf
 endif
 
diff --git a/examples/gnrc_border_router/Makefile.native.conf b/examples/gnrc_border_router/Makefile.native.conf
index 3340a9f171..d691cb512e 100644
--- a/examples/gnrc_border_router/Makefile.native.conf
+++ b/examples/gnrc_border_router/Makefile.native.conf
@@ -1,6 +1,14 @@
 # native has a TAP interface towards the host, just add parameters for
 # `socket_zep`
-TERMFLAGS += -z [::1]:17754
+ZEP_PORT_BASE ?= 17754
+ZEP_PORT_MAX := $(shell expr $(ZEP_PORT_BASE) + $(ZEP_DEVICES) - 1)
+
+CFLAGS += -DSOCKET_ZEP_MAX=$(ZEP_DEVICES)
+CFLAGS += -DDHCPV6_CLIENT_PFX_LEASE_MAX=$(ZEP_DEVICES)
+CFLAGS += -DASYNC_READ_NUMOF=$(shell expr $(ZEP_DEVICES) + 1)
+
+# -z [::1]:$PORT for each ZEP device
+TERMFLAGS += $(patsubst %,-z [::1]:%, $(shell seq $(ZEP_PORT_BASE) $(ZEP_PORT_MAX)))
 
 ifneq (1,$(USE_DHCPV6))
   # We don't need to start ethos so just start the UHCPD daemon in the