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-rw-r--r--src/plugins/nat/in2out.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/plugins/nat/in2out.c b/src/plugins/nat/in2out.c
index 8f92bae0302..a448867cd4f 100644
--- a/src/plugins/nat/in2out.c
+++ b/src/plugins/nat/in2out.c
@@ -1118,10 +1118,11 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
{
if (!vnet_buffer (b0)->ip.reass.is_non_first_fragment)
{
+ udp0->src_port = s0->out2in.port;
if (PREDICT_FALSE (udp0->checksum))
{
old_port0 = vnet_buffer (b0)->ip.reass.l4_src_port;
- new_port0 = udp0->src_port = s0->out2in.port;
+ new_port0 = udp0->src_port;
sum0 = udp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t, dst_address /* changed member */
);
@@ -1325,10 +1326,11 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
{
if (!vnet_buffer (b0)->ip.reass.is_non_first_fragment)
{
+ udp1->src_port = s1->out2in.port;
if (PREDICT_FALSE (udp1->checksum))
{
old_port1 = vnet_buffer (b1)->ip.reass.l4_src_port;
- new_port1 = udp1->src_port = s1->out2in.port;
+ new_port1 = udp1->src_port;
sum1 = udp1->checksum;
sum1 = ip_csum_update (sum1, old_addr1, new_addr1, ip4_header_t, dst_address /* changed member */
);
@@ -1567,10 +1569,11 @@ snat_in2out_node_fn_inline (vlib_main_t * vm,
{
if (!vnet_buffer (b0)->ip.reass.is_non_first_fragment)
{
+ udp0->src_port = s0->out2in.port;
if (PREDICT_FALSE (udp0->checksum))
{
old_port0 = vnet_buffer (b0)->ip.reass.l4_src_port;
- new_port0 = udp0->src_port = s0->out2in.port;
+ new_port0 = udp0->src_port;
sum0 = udp0->checksum;
sum0 = ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t, dst_address /* changed member */
);