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This commit is contained in:
J. Nick Koston
2025-09-14 09:17:24 -05:00
parent c1c4fabc28
commit 09a4d51120
1 changed files with 8 additions and 6 deletions
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14
esphome/components/ethernet/ethernet_component.cpp
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@@ -491,17 +491,18 @@ void EthernetComponent::finish_connect_() {
#if USE_NETWORK_IPV6
// Retry IPv6 link-local setup if it failed during initial connect
// This handles the case where IPv6 setup failed in start_connect_()
// due to the interface not being fully ready (timing issue).
// By now the interface is stable since we're in CONNECTED state.
// because the interface was still down (e.g., cable unplugged).
// By now we're in CONNECTED state so the interface is up.
if (!this->ipv6_setup_done_) {
esp_err_t err = esp_netif_create_ip6_linklocal(this->eth_netif_);
if (err == ESP_OK) {
ESP_LOGD(TAG, "IPv6 link-local address created (retry succeeded)");
}
// Always set the flag to prevent continuous retries
// If IPv6 setup fails here with the interface up and stable, it's likely
// a persistent issue (IPv6 disabled at router, hardware limitation, etc.)
// that won't be resolved by further retries. The device continues to work with IPv4.
// If IPv6 setup fails here with the interface up and stable, it's
// likely a persistent issue (IPv6 disabled at router, hardware
// limitation, etc.) that won't be resolved by further retries.
// The device continues to work with IPv4.
this->ipv6_setup_done_ = true;
}
#endif /* USE_NETWORK_IPV6 */
@@ -569,7 +570,8 @@ void EthernetComponent::start_connect_() {
#if USE_NETWORK_IPV6
// Attempt to create IPv6 link-local address
// Note: this may fail with ESP_FAIL if the interface is not fully up yet,
// which can happen after network interruptions. We'll retry in the CONNECTED state if it fails here.
// which can happen after network interruptions. We'll retry in the
// CONNECTED state if it fails here.
err = esp_netif_create_ip6_linklocal(this->eth_netif_);
if (err != ESP_OK) {
if (err == ESP_ERR_ESP_NETIF_INVALID_PARAMS) {