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[wifi] Start IPv6 link-local on connect, not on DHCPv4 lease (#19749)

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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: J. Nick Koston <nick@koston.org>
This commit is contained in:
David Coulson
2026-10-02 19:07:58 +00:00
committed by GitHub
co-authored by Claude Opus 5.5 J. Nick Koston
parent 5328e5f5e0
commit 25eaf1d025
1 changed files with 6 additions and 3 deletions
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esphome/components/wifi/wifi_component_esp_idf.cpp
+6 -3
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@@ -829,6 +829,12 @@ void WiFiComponent::wifi_process_event_(IDFWiFiEvent *data) {
(const char *) it.ssid, bssid_buf, it.channel, get_auth_mode_str(it.authmode));
#endif
s_sta_connected = true;
#if USE_NETWORK_IPV6
// Start SLAAC on association, not after a DHCPv4 lease that may never arrive.
if (esp_err_t ll_err = esp_netif_create_ip6_linklocal(s_sta_netif); ll_err != ESP_OK) {
ESP_LOGW(TAG, "esp_netif_create_ip6_linklocal failed: %s", esp_err_to_name(ll_err));
}
#endif /* USE_NETWORK_IPV6 */
if (this->state_ == WIFI_COMPONENT_STATE_STA_CONNECTED) {
// Driver-initiated roam: the WIFI_REASON_ROAMING disconnect was ignored,
// so the state machine never left STA_CONNECTED.
@@ -881,9 +887,6 @@ void WiFiComponent::wifi_process_event_(IDFWiFiEvent *data) {
} else if (data->event_base == IP_EVENT && data->event_id == IP_EVENT_STA_GOT_IP) {
const auto &it = data->data.ip_got_ip;
#if USE_NETWORK_IPV6
esp_netif_create_ip6_linklocal(s_sta_netif);
#endif /* USE_NETWORK_IPV6 */
ESP_LOGV(TAG, "static_ip=" IPSTR " gateway=" IPSTR, IP2STR(&it.ip_info.ip), IP2STR(&it.ip_info.gw));
this->got_ipv4_address_ = true;
#ifdef USE_WIFI_IP_STATE_LISTENERS