1 files changed, 56 insertions, 2 deletions
diff --git a/share/man/man4/icmp6.4 b/share/man/man4/icmp6.4
index b153767cbad..ccdcd5eda79 100644
--- a/share/man/man4/icmp6.4
+++ b/share/man/man4/icmp6.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: icmp6.4,v 1.18 2004/12/20 19:17:04 jaredy Exp $
+.\"	$OpenBSD: icmp6.4,v 1.19 2004/12/23 20:33:03 jaredy Exp $
 .\" Copyright (c) 1986, 1991, 1993
 .\"     The Regents of the University of California.  All rights reserved.
 .\"
@@ -74,7 +74,61 @@ Outgoing packets automatically have an IPv6 header prepended to them
 (based on the destination address).
 Incoming packets on the socket are received with the IPv6 header and any
 extension headers removed.
+.Ss Types
+ICMPv6 messages are classified according to the type and code fields
+present in the ICMPv6 header.
+The abbreviations for the types and codes may be used in rules in
+.Xr pf.conf 5 .
+The following types are defined:
+.Bl -column x xxxxxxxxxxxx -offset indent
+.It Sy Num Ta Sy Abbrev. Ta Sy Description
+.It 1 Ta unreach Ta "Destination unreachable"
+.It 2 Ta toobig Ta "Packet too big"
+.It 3 Ta timex Ta "Time exceeded"
+.It 4 Ta paramprob Ta "Invalid IPv6 header"
+.It 128 Ta echoreq Ta "Echo service request"
+.It 129 Ta echorep Ta "Echo service reply"
+.It 130 Ta groupqry Ta "Group membership query"
+.It 130 Ta listqry Ta "Multicast listener query"
+.It 131 Ta grouprep Ta "Group membership report"
+.It 131 Ta listenrep Ta "Multicast listener report"
+.It 132 Ta groupterm Ta "Group membership termination"
+.It 132 Ta listendone Ta "Multicast listerner done"
+.It 133 Ta routersol Ta "Router solicitation"
+.It 134 Ta routeradv Ta "Router advertisement"
+.It 135 Ta neighbrsol Ta "Neighbor solicitation"
+.It 136 Ta neighbradv Ta "Neighbor advertisement"
+.It 137 Ta redir Ta "Shorter route exists"
+.It 138 Ta routrrenum Ta "Route renumbering"
+.It 139 Ta fqdnreq Ta "FQDN query"
+.It 139 Ta niqry Ta "Node information query"
+.It 139 Ta wrureq Ta "Who-are-you request"
+.It 140 Ta fqdnrep Ta "FQDN reply"
+.It 140 Ta nirep Ta "Node information reply"
+.It 140 Ta wrurep Ta "Who-are-you reply"
+.It 200 Ta mtraceresp Ta "mtrace response"
+.It 201 Ta mtrace Ta "mtrace messages"
+.El
 .Pp
+The following codes are defined:
+.Bl -column x xxxxxxxxxxxx xxxxxxxx -offset indent
+.It Sy Num Ta Sy Abbrev. Ta Sy Type Ta
+.Sy Description
+.It 0 Ta noroute-unr Ta unreach Ta "No route to destination"
+.It 1 Ta admin-unr Ta unreach Ta "Administratively prohibited"
+.It 2 Ta beyond-unr Ta unreach Ta "Beyond scope of source address"
+.It 2 Ta notnbr-unr Ta unreach Ta "Not a neighbor (obselete)"
+.It 3 Ta addr-unr Ta unreach Ta "Address unreachable"
+.It 4 Ta port-unr Ta unreach Ta "Port unreachable"
+.It 0 Ta transit Ta timex Ta "Time exceeded in transit"
+.It 1 Ta reassemb Ta timex Ta "Time exceeded in reassembly"
+.It 0 Ta badhead Ta paramprob Ta "Erroneous header field"
+.It 1 Ta nxthdr Ta paramprob Ta "Unrecognized next header"
+.It 2 Ta "" Ta redir Ta "Unrecognized option"
+.It 0 Ta redironlink Ta redir Ta "Redirection to on-link node"
+.It 1 Ta redirrouter Ta redir Ta "Redirection to better router"
+.El
+.Ss Headers
 All ICMPv6 messages are prefixed with an ICMPv6 header.
 This header corresponds to the
 .Vt icmp6_hdr
@@ -112,7 +166,7 @@ describes the sub-type of the message and depends on
 contains the checksum for the message and is filled in by the
 kernel on outgoing messages.
 The other fields are used for type-specific purposes.
-.Pp
+.Ss Filters
 Because of the extra functionality of ICMPv6 in comparison to ICMPv4,
 a larger number of messages may be potentially received on an ICMPv6
 socket.