gre: set proper fib index for unnumbered interfaces, unset fib index before forwardin...

[vpp.git] / src / vnet / gre / node.c

diff --git a/src/vnet/gre/node.c b/src/vnet/gre/node.c
index 9252306..fdd3118 100644 (file)
--- a/src/vnet/gre/node.c
+++ b/src/vnet/gre/node.c
@@ -301,6 +301,9 @@ gre_input (vlib_main_t * vm,
          vnet_buffer (b[1])->sw_if_index[VLIB_RX] = tun_sw_if_index[1];
        }
 
+      vnet_buffer (b[0])->sw_if_index[VLIB_TX] = (u32) ~0;
+      vnet_buffer (b[1])->sw_if_index[VLIB_TX] = (u32) ~0;
+
       if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
        gre_trace (vm, node, b[0], tun_sw_if_index[0], ip6[0], ip4[0],
                   is_ipv6);
@@ -411,6 +414,8 @@ gre_input (vlib_main_t * vm,
          vnet_buffer (b[0])->sw_if_index[VLIB_RX] = tun_sw_if_index[0];
        }
 
+      vnet_buffer (b[0])->sw_if_index[VLIB_TX] = (u32) ~0;
+
       if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
        gre_trace (vm, node, b[0], tun_sw_if_index[0], ip6[0], ip4[0],
                   is_ipv6);