nat: revert respect udp checksum

This reverts commit 00be6b18862273f832bc524601a34448a61b0e3e.
Type: fix

Signed-off-by: Ole Troan <ot@cisco.com>
Change-Id: Ibef710319222e311bbdfd3221acc4df82139d12d

diff --git a/src/plugins/nat/out2in.c b/src/plugins/nat/out2in.c
index 00c5176..8c6cb48 100755 (executable)
--- a/src/plugins/nat/out2in.c
+++ b/src/plugins/nat/out2in.c
@@ -895,6 +895,10 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm,
 
          if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
            {
+             old_port0 = tcp0->dst_port;
+             tcp0->dst_port = s0->in2out.port;
+             new_port0 = tcp0->dst_port;
+
              sum0 = tcp0->checksum;
              sum0 = ip_csum_update (sum0, old_addr0, new_addr0,
                                     ip4_header_t,