99 lines
2.4 KiB
Groff
99 lines
2.4 KiB
Groff
.\" $NetBSD: srtconfig.1,v 1.2 2006/12/29 10:39:11 wiz Exp $
|
|
.\" This file is in the public domain.
|
|
.Dd August 21, 2000
|
|
.Dt SRTCONFIG 1
|
|
.Os
|
|
.Sh NAME
|
|
.Nm srtconfig
|
|
.Nd configure srt interfaces
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Ar srtX
|
|
.Nm
|
|
.Ar srtX
|
|
.Ar N
|
|
.Nm
|
|
.Ar srtX
|
|
del
|
|
.Ar N
|
|
.Nm
|
|
.Ar srtX
|
|
add
|
|
.Ar srcaddr
|
|
.Ar mask
|
|
.Ar dstif
|
|
.Ar dstaddr
|
|
.Nm
|
|
.Ar srtX
|
|
set
|
|
.Ar N
|
|
.Ar srcaddr
|
|
.Ar mask
|
|
.Ar dstif
|
|
.Ar dstaddr
|
|
.Sh DESCRIPTION
|
|
.Nm
|
|
configures, or queries the configuration of,
|
|
.Xr srt 4
|
|
interfaces.
|
|
An
|
|
.Xr srt 4
|
|
interface parcels packets out to other interfaces based on their source
|
|
addresses (the normal routing mechanisms handle routing decisions based
|
|
on destination addresses).
|
|
An interface may have any number of routing choices; they are
|
|
examined in order until one matching the packet is found. The
|
|
packet is sent to the corresponding interface.
|
|
(Any interface, even another
|
|
.Nm srt
|
|
interface, may be specified; if the configurations collaborate to cause
|
|
a packet to loop forever, the system will lock up or crash.)
|
|
.Pp
|
|
When run with only one argument,
|
|
.Nm
|
|
prints the settings for the specified interface.
|
|
.Pp
|
|
When run with two arguments,
|
|
.Nm
|
|
prints the settings for the routing choice whose number is given as the
|
|
second argument.
|
|
.Pp
|
|
The form with
|
|
.Sq del
|
|
deletes a routing choice, identified by its number.
|
|
Other choices with higher numbers, if any, will be renumbered
|
|
accordingly.
|
|
.Pp
|
|
The
|
|
.Sq add
|
|
form adds a choice; the other arguments describe it, and are documented
|
|
below.
|
|
The new choice is added at the end of the list.
|
|
.Pp
|
|
The
|
|
.Sq set
|
|
form replaces an existing choice, given its number.
|
|
The other arguments describe the new choice which is to replace
|
|
whatever currently exists at the given number
|
|
.Ar N .
|
|
.Pp
|
|
A choice is described by four pieces of information: a source address
|
|
and mask, which are used to determine which choice an outgoing packet
|
|
uses, a destination interface, and a destination address for the new
|
|
interface.
|
|
The source address and mask are specified like any Internet
|
|
addresses (for convenience, the mask may instead be specified as a
|
|
.Sq /
|
|
followed by a small integer, CIDR-style; note that in this case the
|
|
mask must still be a separate argument; it cannot be appended to the
|
|
end of the source address argument).
|
|
.Pp
|
|
Each srt interface also has ordinary source and distination addresses
|
|
which are set with
|
|
.Xr ifconfig 8
|
|
like any other interface; these should not be confused with any of the
|
|
above.
|
|
.Sh AUTHORS
|
|
.An der Mouse
|
|
.Aq mouse@rodents.montreal.qc.ca
|