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- Add description that IPv6 configuration will be ignored if $ifconfig_IF_ipv6

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is empty.
- Move a configuration example "inet6 accept_rtadv" to just after the manual
  GUA configuration.
- Add an example of $ipv6_prefix_IF.
This commit is contained in:
Hiroki Sato 2011-10-23 06:34:52 +00:00
parent 97d4be7ebc
commit 74ea050052
1 changed files with 37 additions and 8 deletions
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45
share/man/man5/rc.conf.5
View File

@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd September 13, 2011
.Dd October 23, 2011
.Dt RC.CONF 5
.Os
.Sh NAME
@ -1423,6 +1423,11 @@ IPv6 functionality on an interface should be configured by
.Va ifconfig_ Ns Ao Ar interface Ac Ns _ipv6 ,
instead of setting ifconfig parameters in
.Va ifconfig_ Ns Aq Ar interface .
If this variable is empty, all of IPv6 configurations on the
specified interface by other variables such as
.Va ipv6_prefix_ Ns Ao Ar interface Ac
will be ignored.
.Pp
Aliases should be set by
.Va ifconfig_ Ns Ao Ar interface Ac Ns Va _alias Ns Aq Ar n
with
@ -1433,6 +1438,17 @@ ifconfig_ed0_ipv6="inet6 2001:db8:1::1 prefixlen 64"
ifconfig_ed0_alias0="inet6 2001:db8:2::1 prefixlen 64"
.Ed
.Pp
Interfaces that have an
.Dq Li inet6 accept_rtadv
keyword in
.Va ifconfig_ Ns Ao Ar interface Ac Ns _ipv6
setting will be automatically configured by SLAAC
.Pq StateLess Address AutoConfiguration
described in
.Rs
.%T "RFC 4862"
.Re
.Pp
Note that a link-local address will be automatically configured in
addition to the configured global-scope addresses because the IPv6
specifications require it on each link.
@ -1457,19 +1473,32 @@ For example:
.Bd -literal
ifconfig_ed0_ipv6="inet6 fe80::1 prefixlen 64"
.Ed
.Pp
Interfaces that have an
.Dq Li inet6 accept_rtadv
keyword in
.Va ifconfig_ Ns Ao Ar interface Ac Ns _ipv6
setting will be automatically configured by
.Xr rtsol 8 .
.It Va ipv6_prefix_ Ns Aq Ar interface
.Pq Vt str
If one or more prefixes are defined in
.Va ipv6_prefix_ Ns Aq Ar interface
addresses based on each prefix and the EUI-64 interface index will be
configured on that interface.
Note that this variable will be ignored when
.Va ifconfig_ Ns Ao Ar interface Ac Ns _ipv6
is empty.
.Pp
For example, the following configuration
.Bd -literal
ipv6_prefix_ed0="2001:db8:1:: 2001:db8:2::"
.Ed
.Pp
is equivalent to the following:
.Bd -literal
ifconfig_ed0_alias0="inet6 2001:db8:1:: eui64 prefixlen 64"
ifconfig_ed0_alias1="inet6 2001:db8:1:: prefixlen 64 anycast"
ifconfig_ed0_alias2="inet6 2001:db8:2:: eui64 prefixlen 64"
ifconfig_ed0_alias3="inet6 2001:db8:2:: prefixlen 64 anycast"
.Ed
.Pp
These Subnet-Router anycast addresses will be added only when
.Va ipv6_gateway_enable
is YES.
.It Va ipv6_default_interface
.Pq Vt str
If not set to