diff --git a/xfrm_policy_linux.go b/xfrm_policy_linux.go
index 694bd74..3584968 100644
--- a/xfrm_policy_linux.go
+++ b/xfrm_policy_linux.go
@@ -93,8 +93,10 @@ func (h *Handle) xfrmPolicyAddOrUpdate(policy *XfrmPolicy, nlProto int) error {
 		req.AddData(out)
 	}
 
-	ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(policy.Ifid)))
-	req.AddData(ifId)
+	if policy.Ifid != 0 {
+		ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(policy.Ifid)))
+		req.AddData(ifId)
+	}
 
 	_, err := req.Execute(unix.NETLINK_XFRM, 0)
 	return err
@@ -189,8 +191,10 @@ func (h *Handle) xfrmPolicyGetOrDelete(policy *XfrmPolicy, nlProto int) (*XfrmPo
 		req.AddData(out)
 	}
 
-	ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(policy.Ifid)))
-	req.AddData(ifId)
+	if policy.Ifid != 0 {
+		ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(policy.Ifid)))
+		req.AddData(ifId)
+	}
 
 	resType := nl.XFRM_MSG_NEWPOLICY
 	if nlProto == nl.XFRM_MSG_DELPOLICY {
diff --git a/xfrm_state_linux.go b/xfrm_state_linux.go
index 3b37b87..61a2d2d 100644
--- a/xfrm_state_linux.go
+++ b/xfrm_state_linux.go
@@ -167,8 +167,10 @@ func (h *Handle) xfrmStateAddOrUpdate(state *XfrmState, nlProto int) error {
 		}
 	}
 
-	ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(state.Ifid)))
-	req.AddData(ifId)
+	if state.Ifid != 0 {
+		ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(state.Ifid)))
+		req.AddData(ifId)
+	}
 
 	_, err := req.Execute(unix.NETLINK_XFRM, 0)
 	return err
@@ -281,8 +283,10 @@ func (h *Handle) xfrmStateGetOrDelete(state *XfrmState, nlProto int) (*XfrmState
 		req.AddData(out)
 	}
 
-	ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(state.Ifid)))
-	req.AddData(ifId)
+	if state.Ifid != 0 {
+		ifId := nl.NewRtAttr(nl.XFRMA_IF_ID, nl.Uint32Attr(uint32(state.Ifid)))
+		req.AddData(ifId)
+	}
 
 	resType := nl.XFRM_MSG_NEWSA
 	if nlProto == nl.XFRM_MSG_DELSA {