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-rw-r--r--src/vnet/tcp/tcp_output.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c
index 0ba349c2a62..5690db02ee2 100644
--- a/src/vnet/tcp/tcp_output.c
+++ b/src/vnet/tcp/tcp_output.c
@@ -766,7 +766,7 @@ tcp_send_reset (tcp_connection_t * tc)
tc->snd_opts_len = tcp_make_options (tc, &tc->snd_opts, tc->state);
tcp_hdr_opts_len = tc->snd_opts_len + sizeof (tcp_header_t);
advertise_wnd = tc->rcv_wnd >> tc->rcv_wscale;
- flags = TCP_FLAG_RST;
+ flags = TCP_FLAG_RST | TCP_FLAG_ACK;
th = vlib_buffer_push_tcp (b, tc->c_lcl_port, tc->c_rmt_port, tc->snd_nxt,
tc->rcv_nxt, tcp_hdr_opts_len, flags,
advertise_wnd);