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Diffstat (limited to 'src/net/udpsock.go')
| -rw-r--r-- | src/net/udpsock.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/net/udpsock.go b/src/net/udpsock.go index ec2bcfa607..571e099abd 100644 --- a/src/net/udpsock.go +++ b/src/net/udpsock.go @@ -259,6 +259,9 @@ func ListenUDP(network string, laddr *UDPAddr) (*UDPConn, error) { // ListenMulticastUDP is just for convenience of simple, small // applications. There are golang.org/x/net/ipv4 and // golang.org/x/net/ipv6 packages for general purpose uses. +// +// Note that ListenMulticastUDP will set the IP_MULTICAST_LOOP socket option +// to 0 under IPPROTO_IP, to disable loopback of multicast packets. func ListenMulticastUDP(network string, ifi *Interface, gaddr *UDPAddr) (*UDPConn, error) { switch network { case "udp", "udp4", "udp6": |