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-rw-r--r--sys/netinet6/IMPLEMENTATION23
1 files changed, 19 insertions, 4 deletions
diff --git a/sys/netinet6/IMPLEMENTATION b/sys/netinet6/IMPLEMENTATION
index f6151601f58..acb891e1231 100644
--- a/sys/netinet6/IMPLEMENTATION
+++ b/sys/netinet6/IMPLEMENTATION
@@ -1,4 +1,4 @@
-$OpenBSD: IMPLEMENTATION,v 1.4 2000/02/25 07:34:26 itojun Exp $
+$OpenBSD: IMPLEMENTATION,v 1.5 2000/02/28 11:58:11 itojun Exp $
# NOTE: this is from original KAME distribution.
# Some portion of this document is not applicable to the code merged into
@@ -115,9 +115,8 @@ draft-ietf-ngtrans-tcpudp-relay-00.txt:
Neighbor Discovery is fairly stable. Currently Address Resolution,
Duplicated Address Detection, and Neighbor Unreachability Detection
-are supported. In the near future we will be adding Proxy Neighbor
-Advertisement support in the kernel and Unsolicited Neighbor Advertisement
-transmission command as admin tool.
+are supported. In the near future we will be adding Unsolicited Neighbor
+Advertisement transmission command as admin tool.
Duplicated Address Detection (DAD) will be performed when an IPv6 address
is assigned to a network interface, or the network interface is enabled
@@ -166,6 +165,22 @@ If this troubles you, please contact KAME team and/or modify
nd6_maxndopt in sys/netinet6/nd6.c. If there are high demands we may
provide sysctl knob for the variable.
+Proxy Neighbor Advertisement support is implemented in the kernel.
+You can configure it by using the following command:
+ # ndp -s fe80:1::1234 0:1:2:3:4:5 proxy
+You need to fill in scope index into the address - see 1.3.3.
+There are certain limitations, though:
+- It does not send unsolicited multicast NA on configuration. This is MAY
+ behavior in RFC2461.
+- It does not add random delay before transmission of solicited NA. This is
+ SHOULD behavior in RFC2461.
+- We cannot configure proxy NDP for off-link address. The target address for
+ proxying must be link-local address, or must be in prefixes configured to
+ node which does proxy NDP.
+- RFC2461 is unclear about if it is legal for a host to perform proxy ND.
+ We do not prohibit hosts from doing proxy ND, but there will be very limited
+ use in it.
+
1.3 Scope Index
IPv6 uses scoped addresses. It is therefore very important to