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specification (specifically, 6to4-04) forbids use of private

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IPv4 address in 6to4 prefix.
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itojun 2000-05-02 04:05:25 +00:00
parent 8ca78ff825
commit e37f1e2284
1 changed files with 9 additions and 7 deletions
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16
share/man/man4/stf.4
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@ -1,5 +1,5 @@
.\" $NetBSD: stf.4,v 1.1 2000/04/19 06:34:21 itojun Exp $
.\" $KAME: stf.4,v 1.19 2000/04/19 05:22:08 itojun Exp $
.\" $NetBSD: stf.4,v 1.2 2000/05/02 04:05:25 itojun Exp $
.\" $KAME: stf.4,v 1.20 2000/05/02 03:59:44 itojun Exp $
.\"
.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
.\" All rights reserved.
@ -78,6 +78,8 @@ where
.Li xxyy:zzuu
is a hexadecimal notation of an IPv4 address for the node.
IPv4 address can be taken from any of interfaces your node has.
Since the specification forbids the use of IPv4 private address,
the address needs to be a global IPv4 address.
.It
Subnet identifier portion
.Pq 48th to 63rd bit
@ -162,13 +164,13 @@ written in hexadecimals.
.Ed
.Pp
The following configuration accepts packets from IPv4 source
.Li 10.1.0.0/16
.Li 9.1.0.0/16
only.
It emits 6to4 packet only for IPv6 destination 2002:0a01::/32
.Pq IPv4 destination will match Li 10.1.0.0/16 .
It emits 6to4 packet only for IPv6 destination 2002:0901::/32
.Pq IPv4 destination will match Li 9.1.0.0/16 .
.Bd -literal
# ifconfig ne0 inet 10.1.2.3 netmask 0xffff0000
# ifconfig stf0 inet6 2002:0a01:0203:0000:a00:5aff:fe38:6f86 \\
# ifconfig ne0 inet 9.1.2.3 netmask 0xffff0000
# ifconfig stf0 inet6 2002:0901:0203:0000:a00:5aff:fe38:6f86 \\
prefixlen 32 alias
.Ed
.\"