Udp: default local_ip to IP_ANY_TYPE when IPv6 is enabled (#750)

be18c76c · Odd Stråbø · GitHub · af2671d8 · be18c76c
Unverified Commit be18c76c authored Aug 11, 2022 by Odd Stråbø Committed by GitHub Aug 10, 2022
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libraries/WiFi/src/include/UdpContext.h libraries/WiFi/src/include/UdpContext.h +5 -0

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--- a/libraries/WiFi/src/include/UdpContext.h
+++ b/libraries/WiFi/src/include/UdpContext.h
@@ -50,6 +50,11 @@ public:
        , _tx_buf_cur(0)
        , _tx_buf_offset(0) {
        _pcb = udp_new();
+#if LWIP_IPV6
+        // local_ip defaults to 0.0.0.0
+        // which is problematic for sending IPv6 packets
+        ip_addr_set_ipaddr(&_pcb->local_ip, IP_ANY_TYPE);
+#endif
 #ifdef LWIP_MAYBE_XCC
        _mcast_ttl = 1;
 #endif