tcp: add ACK flag to RST packet
According to RFC 793, the ACK control bit is always sent once
the connection is established.
Type: fix
@@ -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);
