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Various language fixes.

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PR:		38061
Submitted by:	Chris Pepper <pepper@rockefeller.edu>
MFC after:	1 week
This commit is contained in:
brueffer 2010-01-09 00:24:54 +00:00
parent c27b492e47
commit da19d81aaa
1 changed files with 18 additions and 19 deletions
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37
share/man/man4/faith.4
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@ -58,15 +58,15 @@ variable in
.Xr rc.conf 5 .
.Pp
Special action will be taken when IPv6 TCP traffic is seen on a router,
and routing table suggests to route it to
and the routing table suggests to route it to the
.Nm
interface.
In this case, the packet will be accepted by the router,
regardless of list of IPv6 interface addresses assigned to the router.
The packet will be captured by an IPv6 TCP socket, if it has
regardless of the list of IPv6 interface addresses assigned to the router.
The packet will be captured by an IPv6 TCP socket, if it has the
.Dv IN6P_FAITH
flag turned on and it has matching address/port pairs.
In result,
flag turned on and matching address/port pairs.
As a result,
.Nm
will let you capture IPv6 TCP traffic to some specific destination addresses.
Userland programs, such as
@ -79,43 +79,42 @@ and perform application-specific address mapping to relay IPv6 TCP to IPv4 TCP.
.Pp
The
.Dv IN6P_FAITH
flag on IPv6 TCP socket can be set by using
flag on a IPv6 TCP socket can be set by using
.Xr setsockopt 2 ,
with level equals to
with level
.Dv IPPROTO_IPV6
and optname equals to
and optname
.Dv IPv6_FAITH .
.Pp
To handle error reports by ICMPv6, some of ICMPv6 packets routed to
To handle error reports by ICMPv6, some ICMPv6 packets routed to an
.Nm
interface will be delivered to IPv6 TCP, as well.
.Pp
To understand how
.Nm
can be used, take a look at source code of
can be used, take a look at the source code of
.Xr faithd 8 .
.Pp
As
As the
.Nm
interface implements potentially dangerous operation,
great care must be taken when configuring
.Nm
interface.
To avoid possible misuse,
interface implements potentially dangerous operations,
great care must be taken when configuring it.
To avoid possible misuse, the
.Xr sysctl 8
variable
.Li net.inet6.ip6.keepfaith
must be set to
.Li 1
prior to the use of the interface.
prior to using the interface.
When
.Li net.inet6.ip6.keepfaith
is
.Li 0 ,
no packet will be captured by
no packets will be captured by the
.Nm
interface.
.Pp
The
.Nm
interface is intended to be used on routers, not on hosts.
.\"
@ -130,5 +129,5 @@ interface is intended to be used on routers, not on hosts.
.%O RFC3142
.Re
.Sh HISTORY
The FAITH IPv6-to-IPv4 TCP relay translator was first appeared in
The FAITH IPv6-to-IPv4 TCP relay translator first appeared in the
WIDE hydrangea IPv6 stack.