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-rw-r--r--pkg/tcpip/network/ipv4/ipv4.go5
1 files changed, 5 insertions, 0 deletions
diff --git a/pkg/tcpip/network/ipv4/ipv4.go b/pkg/tcpip/network/ipv4/ipv4.go
index 104aafbed..a9dec0c0e 100644
--- a/pkg/tcpip/network/ipv4/ipv4.go
+++ b/pkg/tcpip/network/ipv4/ipv4.go
@@ -118,6 +118,11 @@ func (e *endpoint) GSOMaxSize() uint32 {
return 0
}
+// NetworkProtocolNumber implements stack.NetworkEndpoint.NetworkProtocolNumber.
+func (e *endpoint) NetworkProtocolNumber() tcpip.NetworkProtocolNumber {
+ return e.protocol.Number()
+}
+
// writePacketFragments calls e.linkEP.WritePacket with each packet fragment to
// write. It assumes that the IP header is entirely in pkt.Header but does not
// assume that only the IP header is in pkt.Header. It assumes that the input