#define TCPOPT_SCPS 20 /* SCPS-TP (CCSDS 714.0-B-2) */
#define TCPOPT_UTO 28 /* tcp user timeout (rfc5482) */
#define TCPOLEN_UTO 4
-#define TCPOPT_AUTH 29 /* Enhanced AUTH option (rfc5925) */
+#define TCPOPT_TCPAO 29 /* TCP authentication option (rfc5925) */
#define TCPOPT_MPTCP 30 /* MPTCP options */
#define TCPOPT_FASTOPEN 34 /* TCP Fast Open (rfc7413) */
#define TCPOPT_EXPERIMENT2 254 /* experimental headers (rfc4727) */
#ifndef SMTP_PORT
#define SMTP_PORT 25
#endif
+#ifndef WHOIS_PORT
+#define WHOIS_PORT 43
+#endif
#ifndef NAMESERVER_PORT
#define NAMESERVER_PORT 53
#endif