Is it possible to support mac repeater or wds bridge？

[Felix-mrf]

I want to use esp32 to build a wifi+eth bridge device， but only dst mac esp32 sta will be receieve. Nat is still many restrictions.

[tswen]

Do you mean the external wants to communicate with the ethernet connected device, if so, you may need to add portmap in your code, currently Nat does have some limitations.

#define IP_PROTO_TCP     6
#define IP_PROTO_UDP     17
 static void ip_event_sta_got_ip_handler(void *arg, esp_event_base_t event_base,
                                         int32_t event_id, void *event_data)
 {
     ip_event_got_ip_t *event = (ip_event_got_ip_t *) event_data;
     ESP_LOGI(TAG, "Connected with IP Address:" IPSTR, IP2STR(&event->ip_info.ip));
     esp_gateway_netif_network_segment_conflict_update(event->esp_netif);
     ip_portmap_add(IP_PROTO_TCP, event->ip_info.ip.addr, 5001, ESP_IP4TOADDR(192, 168, 4, 2), 5001);
     xEventGroupSetBits(s_wifi_event_group, GATEWAY_EVENT_STA_CONNECTED);
 }