From: Ole Troan <ot@cisco.com>
Date: Thu, 7 Nov 2019 21:15:47 +0000 (+0100)
Subject: nat: revert respect udp checksum
X-Git-Tag: v19.08.2~122
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=refs%2Fchanges%2F25%2F23325%2F1;p=vpp.git

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 00c5176326d..8c6cb482703 100755
--- 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,