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-rw-r--r--share/man/man4/options.47
1 files changed, 6 insertions, 1 deletions
diff --git a/share/man/man4/options.4 b/share/man/man4/options.4
index 5042763ca7d..4a4220a0c45 100644
--- a/share/man/man4/options.4
+++ b/share/man/man4/options.4
@@ -1,4 +1,4 @@
-.\" $OpenBSD: options.4,v 1.34 1999/06/11 19:51:55 pattonme Exp $
+.\" $OpenBSD: options.4,v 1.35 1999/07/06 22:19:39 aaron Exp $
.\" $NetBSD: options.4,v 1.21 1997/06/25 03:13:00 thorpej Exp $
.\"
.\" Copyright (c) 1998 Theo de Raadt
@@ -621,6 +621,11 @@ outstanding data during the fast recovery phase by using
.Em SACK
information. This option can be used together with
.Em TCP_SACK .
+.It Cd option TCP_SIGNATURE
+Turns on support for the TCP MD5 Signature option (RFC 2385). This is used by
+Internet backdone routers to provide per-packet authentication for the TCP
+packets used to communicate BGP routing information. You will also need a
+routing daemon that supports this option in order to actually use it.
.It Cd option IPFILTER
This option enables the IP filtering on the packet level using
Darren Reed's ip-filter package.