diff --git a/docs/library/network.rst b/docs/library/network.rst
index d05d17132dc67..2d856ab0fa4a5 100644
--- a/docs/library/network.rst
+++ b/docs/library/network.rst
@@ -124,6 +124,11 @@ parameter should be `id`.
server via DHCP. This method does not block and wait for an address
to be obtained. To check if an address was obtained, use the read-only
property ``has_dhcp4``.
+ * ``autoconf4`` (``True/False``) obtain an IPv4 address randomly in the
+ 169.254.0.0/16 address space. This method does not block and wait for
+ an address to be selected and confirmed to be unused on the network. To
+ check if an address has been selected, use the read-only property
+ ``has_autoconf4``.
* ``gw4`` Get/set the IPv4 default-gateway.
* ``dhcp6`` (``True/False``) obtain a DNS server via stateless DHCPv6.
Obtaining IP Addresses via DHCPv6 is currently not implemented.
diff --git a/extmod/network_lwip.c b/extmod/network_lwip.c
index 9cfab6ef4cb53..bb349f9e8379c 100644
--- a/extmod/network_lwip.c
+++ b/extmod/network_lwip.c
@@ -39,6 +39,7 @@
#include "lwip/netif.h"
#include "lwip/timeouts.h"
+#include "lwip/autoip.h"
#include "lwip/dns.h"
#include "lwip/dhcp.h"
#include "lwip/nd6.h"
@@ -191,6 +192,11 @@ mp_obj_t mod_network_nic_ipconfig(struct netif *netif, size_t n_args, const mp_o
case MP_QSTR_has_dhcp4: {
return mp_obj_new_bool(dhcp_supplied_address(netif));
}
+ #if LWIP_AUTOIP
+ case MP_QSTR_has_autoconf4: {
+ return mp_obj_new_bool(autoip_supplied_address(netif));
+ }
+ #endif
#if LWIP_IPV6_DHCP6
case MP_QSTR_dhcp6: {
struct dhcp6 *dhcp = netif_dhcp6_data(netif);
@@ -268,6 +274,11 @@ mp_obj_t mod_network_nic_ipconfig(struct netif *netif, size_t n_args, const mp_o
dhcp_renew(netif);
} else {
dhcp_release_and_stop(netif);
+ #if LWIP_AUTOIP
+ if (autoip_supplied_address(netif)) {
+ autoip_stop(netif);
+ }
+ #endif
dhcp_start(netif);
}
} else {
@@ -275,6 +286,12 @@ mp_obj_t mod_network_nic_ipconfig(struct netif *netif, size_t n_args, const mp_o
}
break;
}
+ #if LWIP_AUTOIP
+ case MP_QSTR_autoconf4: {
+ dhcp_release_and_stop(netif);
+ autoip_start(netif);
+ }
+ #endif
#if LWIP_IPV6_DHCP6
case MP_QSTR_dhcp6: {
dhcp6_disable(netif);
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