NAME
dvmrpd.conf
—
DVMRP routing 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.
The dvmrpd.conf
config file is divided
into the following 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, digit, or underscore, and may contain
any of those characters. 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 isyes
.
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.
- /etc/examples/dvmrpd.conf
- Example configuration file.
SEE ALSO
dvmrpctl(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.