localIPv4MCastAddrs if（net.FlagUp == 0 ）continue

huin · Mar 10, 2021 · 0ca7630 · 0ca7630
1 parent e7fc2c5
commit 0ca7630
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/network.go b/network.go
@@ -48,7 +48,7 @@ func localIPv4MCastAddrs() ([]string, error) {
 	// Find the set of addresses to listen on.
 	var addrs []string
 	for _, iface := range ifaces {
-		if iface.Flags&net.FlagMulticast == 0 || iface.Flags&net.FlagLoopback != 0 {
+		if iface.Flags&net.FlagMulticast == 0 || iface.Flags&net.FlagLoopback != 0 || iface.Flags&net.FlagUp == 0 {
 			// Does not support multicast or is a loopback address.
 			continue
 		}