7 files changed, 18 insertions, 3 deletions
diff --git a/src/net/interface.go b/src/net/interface.go
index 0e5d3202c9..e1c9a2e2ff 100644
--- a/src/net/interface.go
+++ b/src/net/interface.go
@@ -39,11 +39,12 @@ type Interface struct {
 type Flags uint
 
 const (
-	FlagUp           Flags = 1 << iota // interface is up
+	FlagUp           Flags = 1 << iota // interface is administratively up
 	FlagBroadcast                      // interface supports broadcast access capability
 	FlagLoopback                       // interface is a loopback interface
 	FlagPointToPoint                   // interface belongs to a point-to-point link
 	FlagMulticast                      // interface supports multicast access capability
+	FlagRunning                        // interface is in running state
 )
 
 var flagNames = []string{
@@ -52,6 +53,7 @@ var flagNames = []string{
 	"loopback",
 	"pointtopoint",
 	"multicast",
+	"running",
 }
 
 func (f Flags) String() string {
diff --git a/src/net/interface_aix.go b/src/net/interface_aix.go
index 7ad45d1175..f2e967b1e8 100644
--- a/src/net/interface_aix.go
+++ b/src/net/interface_aix.go
@@ -101,6 +101,9 @@ func linkFlags(rawFlags int32) Flags {
 	if rawFlags&syscall.IFF_UP != 0 {
 		f |= FlagUp
 	}
+	if rawFlags&syscall.IFF_RUNNING != 0 {
+		f |= FlagRunning
+	}
 	if rawFlags&syscall.IFF_BROADCAST != 0 {
 		f |= FlagBroadcast
 	}
diff --git a/src/net/interface_bsd.go b/src/net/interface_bsd.go
index db7bc756d8..9b2b42addb 100644
--- a/src/net/interface_bsd.go
+++ b/src/net/interface_bsd.go
@@ -59,6 +59,9 @@ func linkFlags(rawFlags int) Flags {
 	if rawFlags&syscall.IFF_UP != 0 {
 		f |= FlagUp
 	}
+	if rawFlags&syscall.IFF_RUNNING != 0 {
+		f |= FlagRunning
+	}
 	if rawFlags&syscall.IFF_BROADCAST != 0 {
 		f |= FlagBroadcast
 	}
diff --git a/src/net/interface_linux.go b/src/net/interface_linux.go
index 441ab2f880..9112ecc854 100644
--- a/src/net/interface_linux.go
+++ b/src/net/interface_linux.go
@@ -99,6 +99,9 @@ func linkFlags(rawFlags uint32) Flags {
 	if rawFlags&syscall.IFF_UP != 0 {
 		f |= FlagUp
 	}
+	if rawFlags&syscall.IFF_RUNNING != 0 {
+		f |= FlagRunning
+	}
 	if rawFlags&syscall.IFF_BROADCAST != 0 {
 		f |= FlagBroadcast
 	}
diff --git a/src/net/interface_plan9.go b/src/net/interface_plan9.go
index 957975c265..92b2eed259 100644
--- a/src/net/interface_plan9.go
+++ b/src/net/interface_plan9.go
@@ -95,9 +95,9 @@ func readInterface(i int) (*Interface, error) {
 			}
 		}
 
-		ifc.Flags = FlagUp | FlagBroadcast | FlagMulticast
+		ifc.Flags = FlagUp | FlagRunning | FlagBroadcast | FlagMulticast
 	} else {
-		ifc.Flags = FlagUp | FlagMulticast | FlagLoopback
+		ifc.Flags = FlagUp | FlagRunning | FlagMulticast | FlagLoopback
 	}
 
 	return ifc, nil
diff --git a/src/net/interface_solaris.go b/src/net/interface_solaris.go
index f8d1571b90..32f503f45b 100644
--- a/src/net/interface_solaris.go
+++ b/src/net/interface_solaris.go
@@ -37,6 +37,9 @@ func linkFlags(rawFlags int) Flags {
 	if rawFlags&syscall.IFF_UP != 0 {
 		f |= FlagUp
 	}
+	if rawFlags&syscall.IFF_RUNNING != 0 {
+		f |= FlagRunning
+	}
 	if rawFlags&syscall.IFF_BROADCAST != 0 {
 		f |= FlagBroadcast
 	}
diff --git a/src/net/interface_windows.go b/src/net/interface_windows.go
index 30e90b83c1..22a1312849 100644
--- a/src/net/interface_windows.go
+++ b/src/net/interface_windows.go
@@ -62,6 +62,7 @@ func interfaceTable(ifindex int) ([]Interface, error) {
 			}
 			if aa.OperStatus == windows.IfOperStatusUp {
 				ifi.Flags |= FlagUp
+				ifi.Flags |= FlagRunning
 			}
 			// For now we need to infer link-layer service
 			// capabilities from media types.