radvd.conf.5.man

tinyos-2.x.rar

.\"
.\"   $Id: radvd.conf.5.man,v 1.2 2009/08/09 23:36:05 sdhsdh Exp $
.\"
.\"   Authors:
.\"    Lars Fenneberg		<[e-mail]>
.\"    Marko Myllynen           <[e-mail]>	 
.\"
.\"   This software is Copyright 1996-2000 by the above mentioned author(s), 
.\"   All Rights Reserved.
.\"
.\"   The license which is distributed with this software in the file COPYRIGHT
.\"   applies to this software. If your distribution is missing this file, you
.\"   may request it from <[e-mail]>.
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.\"
.TH RADVD.CONF 5 "20 Aug 2004" "radvd @VERSION@" ""
.SH NAME
radvd.conf \- configuration file of the router advertisement daemon
.B radvd
.SH DESCRIPTION
This file describes the information which is included in the router
advertisement (RA) of a specific interface.
.P
The file contains one or more interface definitions of the form:

.nf
.BR "interface " "name " {
	list of interface specific options
	list of prefix definitions
	list of route definitions
	list of RDNSS definitions
.B };
.fi

All the possible interface specific options are detailed below.  Each
option has to be terminated by a semicolon.

Prefix definitions are of the form:

.nf
.BR "prefix " prefix / "length " {
	list of prefix specific options
.B };
.fi

Prefix can be network prefix or the address of the inferface.
The address of interface should be used when using Mobile IPv6
extensions.

All the possible prefix specific options are described below.  Each
option has to be terminated by a semicolon.

Decimal values are allowed only for MinDelayBetweenRAs,
MaxRtrAdvInterval and MinRtrAdvInterval.  Decimal values should
be used only when using Mobile IPv6 extensions.

Route definitions are of the form:

.nf
.BR "route " prefix / "length " {
	list of route specific options
.B };
.fi

The prefix of a route definition should be network prefix; it can be used to
advertise more specific routes to the hosts.

RDNSS (Recursive DNS server) definitions are of the form:

.nf
.BR "RDNSS " "ip [ip] [ip] " {
	list of rdnss specific options
.B };
.fi

.SH INTERFACE SPECIFIC OPTIONS

.TP
.BR IgnoreIfMissing " " on | off

A flag indicating whether or not the interface is ignored
if it does not exist at start-up.  By default, radvd exits.

This is useful for dynamic interfaces which are not active when radvd
starts or which are dynamically disabled and re-enabled during the time
radvd runs.

Current versions of radvd automatically try to re-enable interfaces.

Enabling IgnoreIfMissing also quenches certain warnings in log messages
relating to missing interfaces.

Default: off

.TP
.BR AdvSendAdvert " " on | off

A flag indicating whether or not the router sends
periodic router advertisements and responds to
router solicitations. 

This option no longer has to be specified first, but it
needs to be
.B on
to enable advertisement on this interface.

Default: off

.TP
.BR UnicastOnly " " on | off

Indicates that the interface link type only supports unicast.
This will prevent unsolicited advertisements from being sent, and
will cause solicited advertisements to be unicast to the
soliciting node.  This option is necessary for non-broadcast,
multiple-access links, such as ISATAP.

Default: off

.TP
.BR "MaxRtrAdvInterval " seconds

The maximum time allowed between sending unsolicited multicast
router advertisements from the interface, in seconds.

Must be no less than 4 seconds and no greater than 1800 seconds.

Minimum when using Mobile IPv6 extensions: 0.07.

For values less than 0.2 seconds, 0.02 seconds is added to account for
scheduling granularities as specified in RFC3775.

Default: 600 seconds	

.TP
.BR "MinRtrAdvInterval " seconds

The minimum time allowed between sending unsolicited multicast
router advertisements from the interface, in seconds.

Must be no less than 3 seconds and no greater than 0.75 *
MaxRtrAdvInterval.

Minimum when using Mobile IPv6 extensions: 0.03.

Default: 0.33 * MaxRtrAdvInterval

.TP
.BR "MinDelayBetweenRAs " seconds

The minimum time allowed between sending multicast
router advertisements from the interface, in seconds.

This applies to solicited multicast RAs.
This is defined as the protocol constant MIN_DELAY_BETWEEN_RAS in RFC2461.
MIPv6 redefines this parameter to have a minimum of 0.03 seconds.

Minimum when using Mobile IPv6 extensions: 0.03.

Default: 3 

.TP
.BR AdvManagedFlag " " on | off

When set, hosts use the administered (stateful) protocol for address
autoconfiguration in addition to any addresses autoconfigured using
stateless address autoconfiguration.  The use of this flag is
described in RFC 2462.

Default: off

.TP
.BR AdvOtherConfigFlag " " on | off

When set, hosts use the administered (stateful) protocol for
autoconfiguration of other (non-address) information.  The use of
this flag is described in RFC 2462.

Default: off

.TP
.BR "AdvLinkMTU " integer

The MTU option is used in  router advertisement messages to insure
that all nodes on a link use the same MTU value in those cases where
the link MTU is not well known.

If specified, i.e. not 0, must not be smaller than 1280 and not greater
than the maximum MTU allowed for this link (e.g. ethernet has
a maximum MTU of 1500. See RFC 2464).

Default: 0

.TP
.BR "AdvReachableTime " milliseconds

The time, in milliseconds, that a node assumes a neighbor is
reachable after having received a reachability confirmation.  Used
by the Neighbor Unreachability Detection algorithm (see Section
7.3 of RFC 2461).  A value of zero means unspecified (by this router).

Must be no greater than 3,600,000 milliseconds (1 hour).

Default: 0

.TP
.BR "AdvRetransTimer " milliseconds

The time, in milliseconds, between retransmitted Neighbor
Solicitation messages.  Used by address resolution and the Neighbor
Unreachability Detection algorithm (see Sections 7.2 and 7.3 of RFC 2461).
A value of zero means unspecified (by this router).

Default: 0

.TP
.BR "AdvCurHopLimit " integer

The default value that should be placed in the Hop Count field of
the IP header for outgoing (unicast) IP packets.  The value should
be set to the current diameter of the Internet.  The value zero
means unspecified (by this router).

Default: 64

.TP
.BR "AdvDefaultLifetime " seconds

The lifetime associated with the default router in units of seconds. 
The maximum value corresponds to 18.2 hours.  A lifetime of 0
indicates that the router is not a default router and should not
appear on the default router list.  The router lifetime applies only
to the router's usefulness as a default router; it does not apply to
information contained in other message fields or options.  Options
that need time limits for their information include their own
lifetime fields.

Must be either zero or between MaxRtrAdvInterval and 9000 seconds.

Default: 3 * MaxRtrAdvInterval (Minimum 1 second).

.TP
.BR AdvDefaultPreference " " low | medium | high

The preference associated with the default router, as either "low",
"medium", or "high".

Default: medium

.TP
.BR AdvSourceLLAddress " " on | off

When set, the link-layer address of the outgoing interface is
included in the RA.

Default: on

.TP
.BR AdvHomeAgentFlag " " on | off

When set, indicates that sending router is able to serve as Mobile
IPv6 Home Agent.  When set, minimum limits specified by Mobile IPv6
are used for MinRtrAdvInterval and MaxRtrAdvInterval.

Default: off

.TP
.BR AdvHomeAgentInfo " " on | off

When set, Home Agent Information Option (specified by Mobile IPv6)
is included in Router Advertisements.  AdvHomeAgentFlag must also
be set when using this option.

Default: off

.TP
.BR "HomeAgentLifetime " seconds

The length of time in seconds (relative to the time the packet is
sent) that the router is offering Mobile IPv6 Home Agent services.  
A value 0 must not be used.  The maximum lifetime is 65520 seconds 
(18.2 hours).  This option is ignored, if AdvHomeAgentInfo is not
set.

If both HomeAgentLifetime and HomeAgentPreference are set to their
default values, Home Agent Information Option will not be sent.

Default: AdvDefaultLifetime

.TP
.BR "HomeAgentPreference " integer

The preference for the Home Agent sending this Router Advertisement.  
Values greater than 0 indicate more preferable Home Agent, values
less than 0 indicate less preferable Home Agent.  This option is