1 files changed, 0 insertions, 21 deletions

diff --git a/sys/netinet/tcp_seq.h b/sys/netinet/tcp_seq.h
index 930734758dd3..c1d36d331135 100644
--- a/sys/netinet/tcp_seq.h
+++ b/sys/netinet/tcp_seq.h
@@ -80,26 +80,5 @@
 
 #ifdef _KERNEL
 extern tcp_cc	tcp_ccgen;		/* global connection count */
-
-/*
- * Increment for tcp_iss each second.
- * This is designed to increment at the standard 250 KB/s,
- * but with a random component averaging 128 KB.
- * We also increment tcp_iss by a quarter of this amount
- * each time we use the value for a new connection.
- * If defined, the tcp_random18() macro should produce a
- * number in the range [0-0x3ffff] that is hard to predict.
- * 
- * The variable tcp_iss and tcp_random18() are only used
- * by sequence number generation scheme 0.
- */
-#ifndef tcp_random18
-#define	tcp_random18()	(arc4random() & 0x3ffff)
-#endif
-#define	TCP_ISSINCR	(122*1024 + tcp_random18())
-
-extern tcp_seq	tcp_iss;
-#else
-#define	TCP_ISSINCR	(250*1024)	/* increment for tcp_iss each second */
 #endif /* _KERNEL */
 #endif /* _NETINET_TCP_SEQ_H_ */