1 files changed, 9 insertions, 0 deletions
diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go
index 05aa42c98..418e771d2 100644
--- a/pkg/tcpip/tcpip.go
+++ b/pkg/tcpip/tcpip.go
@@ -219,6 +219,15 @@ func (s *Subnet) Mask() AddressMask {
 	return s.mask
 }
 
+// Broadcast returns the subnet's broadcast address.
+func (s *Subnet) Broadcast() Address {
+	addr := []byte(s.address)
+	for i := range addr {
+		addr[i] |= ^s.mask[i]
+	}
+	return Address(addr)
+}
+
 // NICID is a number that uniquely identifies a NIC.
 type NICID int32