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-rw-r--r--pkg/tcpip/stack/registration.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/pkg/tcpip/stack/registration.go b/pkg/tcpip/stack/registration.go
index b6f823b54..16f854e1f 100644
--- a/pkg/tcpip/stack/registration.go
+++ b/pkg/tcpip/stack/registration.go
@@ -208,6 +208,10 @@ const (
// transport layer and callers need not take any further action.
TransportPacketHandled TransportPacketDisposition = iota
+ // TransportPacketProtocolUnreachable indicates that the transport
+ // protocol requested in the packet is not supported.
+ TransportPacketProtocolUnreachable
+
// TransportPacketDestinationPortUnreachable indicates that there weren't any
// listeners interested in the packet and the transport protocol has no means
// to notify the sender.