From: Filip Varga <fivarga@cisco.com>
Date: Mon, 21 Oct 2019 16:18:00 +0000 (+0200)
Subject: nat: respect udp checksum
X-Git-Tag: v19.08.2~123
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=00be6b18862273f832bc524601a34448a61b0e3e;p=vpp.git

nat: respect udp checksum

Type: fix

Change-Id: I732be02d2e2b854eb589c3fa10f980ef2dbe8dfc
Signed-off-by: Filip Varga <fivarga@cisco.com>
(cherry picked from commit 16572355c9069e2e8e4836dc6bd6a65feed2d390)
---

diff --git a/src/plugins/nat/out2in.c b/src/plugins/nat/out2in.c
index 8c6cb482703..00c5176326d 100755
--- a/src/plugins/nat/out2in.c
+++ b/src/plugins/nat/out2in.c
@@ -895,10 +895,6 @@ 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,