diff --git a/deps/cares/src/ares_init.c b/deps/cares/src/ares_init.c index 55d9327ebf384c..d978820f9a9b0d 100644 --- a/deps/cares/src/ares_init.c +++ b/deps/cares/src/ares_init.c @@ -1030,6 +1030,11 @@ static int get_DNS_AdaptersAddresses(char **outptr) } else if (namesrvr.sa->sa_family == AF_INET6) { + /* Windows apparently always reports some IPv6 DNS servers that + * prefixed with fec0:0:0:ffff. These ususally do not point to + * working DNS servers, so we ignore them. */ + if (strncmp(txtaddr, "fec0:0:0:ffff:", 14) == 0) + continue; if (memcmp(&namesrvr.sa6->sin6_addr, &ares_in6addr_any, sizeof(namesrvr.sa6->sin6_addr)) == 0) continue;