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-rw-r--r--src/plugins/snat/in2out.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/plugins/snat/in2out.c b/src/plugins/snat/in2out.c
index ddde702a50c..685cdca8045 100644
--- a/src/plugins/snat/in2out.c
+++ b/src/plugins/snat/in2out.c
@@ -854,6 +854,16 @@ snat_hairpinning (snat_main_t *sm,
udp0->checksum = 0;
}
}
+ else
+ {
+ if (PREDICT_TRUE(proto0 == SNAT_PROTOCOL_TCP))
+ {
+ sum0 = tcp0->checksum;
+ sum0 = ip_csum_update (sum0, old_dst_addr0, new_dst_addr0,
+ ip4_header_t, dst_address);
+ tcp0->checksum = ip_csum_fold(sum0);
+ }
+ }
}
}