DVMRPD.CONF(5) OpenBSD Programmer's Manual DVMRPD.CONF(5)NAMEdvmrpd.conf - Distance Vector Multicast Routing Protocol daemon
configuration file
DESCRIPTION
The dvmrpd(8) daemon implements the Distance Vector Multicast Routing
Protocol as described in draft-ietf-idmr-dvmrp-v3-11 DVMRP Version 3.
SECTIONS
The dvmrpd.conf config file is divided into three main sections.
Macros
User-defined variables may be defined and used later, simplifying
the configuration file.
Global Configuration
Global settings for dvmrpd(8). A number of global settings can be
overruled in specific areas or interfaces.
Groups
Groups are used to group similar interfaces, simplifying
configuration.
MACROS
Macros can be defined that will later be expanded in context. Macro
names must start with a letter, and may contain letters, digits, and
underscores. Macro names may not be reserved words (for example, area,
interface, or hello-interval). Macros are not expanded inside quotes.
For example:
hi="60"
group {
interface em0 {
query-interval $hi
}
}
The same can be accomplished by specifying the query-interval globally or
within the group declaration.
GLOBAL CONFIGURATION
All interface related settings can be configured globally, per group and
per interface. The only settings that can be set globally and not
overruled are listed below.
mfc-update (yes|no)
If set to yes, the kernel Multicast Forwarding Cache is updated
with information from the daemon. The default is yes.
GROUPS
Groups can be used to easily configure similar interfaces. All
interface-specific parameters can be configured per group, overruling the
global settings.
group Specify a group section, grouping one or more interfaces.
group {
robustness 4
interface em0
interface em1
}
INTERFACES
Each interface can have several parameters configured individually,
otherwise they are inherited.
interface em0 {
}
Interface-specific parameters are listed below.
igmp-version number
Do not use a newer version than specified. Valid range 1-2. The
default version used is 2.
last-member-query-count count
The default value is equal to the default robustness variable;
valid range is 1-255.
last-member-query-interval seconds
The default value is 10; valid range is 1-65535.
metric cost
Set the interface metric a.k.a. cost. The default value is 1;
valid range is 1-31.
passive
Prevent transmission and reception of IGMP and DVMRP packets on
this interface.
query-interval seconds
Set the query interval. The default value is 125 seconds; valid
range is 1-65535 seconds.
query-response-interval seconds
Set the query-response-interval; note that this must be less than
the query-interval. The default value is 100 seconds; valid
range is 1-65535 seconds.
robustness factor
Set the robustness factor; note that this value might have an
impact on other variables. The default value is 2; valid range
is 1-4.
startup-query-count count
Set the startup-query-interval, used during startup to speed up
the process of building the IGMP table for an interface. The
default value is equal to the default robustness variable; valid
range is the same as the robustness variable.
startup-query-interval seconds
Used during startup, see the startup-query-interval. The default
value is query-interval / 4; valid range is the same as the
query-interval.
FILES
/etc/dvmrpd.conf dvmrpd(8) configuration file
SEE ALSOdvmrpctl(8), dvmrpd(8), rc.conf.local(8)
DVMRP Version 3, draft-ietf-idmr-dvmrp-v3-11, August 2000.
HISTORY
The dvmrpd.conf file format first appeared in OpenBSD 4.0.
OpenBSD 4.9 January 31, 2008 OpenBSD 4.9
