path: root/extensions/
diff options
Diffstat (limited to 'extensions/')
1 files changed, 12 insertions, 14 deletions
diff --git a/extensions/ b/extensions/
index 877a769c..2d09e050 100644
--- a/extensions/
+++ b/extensions/
@@ -11,25 +11,23 @@ chains, and user-defined chains which are only called from those
chains. The following option controls the nature of the error packet
-.BI "--reject-with " "type"
+\fB\-\-reject\-with\fP \fItype\fP
The type given can be
-.B " icmp6-no-route"
-.B " no-route"
-.B " icmp6-adm-prohibited"
-.B " adm-prohibited"
-.B " icmp6-addr-unreachable"
-.B " addr-unreach"
-.B " icmp6-port-unreachable"
-.B " port-unreach"
-which return the appropriate ICMPv6 error message (\fBport-unreach\fP is
+\fBicmp6\-port\-unreachable\fP or
+which return the appropriate ICMPv6 error message (\fBport\-unreach\fP is
the default). Finally, the option
-.B tcp-reset
can be used on rules which only match the TCP protocol: this causes a
TCP RST packet to be sent back. This is mainly useful for blocking
.I ident
(113/tcp) probes which frequently occur when sending mail to broken mail
hosts (which won't accept your mail otherwise).
-.B tcp-reset
can only be used with kernel versions 2.6.14 or later.