Enterasys SecureStack C2 User Manual

Configuring DVMRP
SecureStack C2 Configuration Guide 17-31
Defaults
None.
Mode
PrivilegedEXEC:C2(su)‐>router#
Example
ThisexampleshowshowtoresetOSPFprocess1:
C2(su)->router#clear ip ospf process 1
Configuring DVMRP
Purpose
ToenableandconfiguretheDistanceVectorMulticastRoutingProtocol(DVMRP)onaninterface.
DVMRProutesmulticasttrafficusingatechniqueknownasReversePathForwarding.Whena
routerreceivesapacket,itfloodsthepacketoutofallpathsexcepttheonethatleadsbacktothe
packet’s source.Doing
soallowsadatastreamtoreachallVLANs(possiblymultipletimes).Ifa 
routerisattachedtoasetofVLANsthatdonotwanttoreceivefromaparticularmulticastgroup,
theroutercansenda“prune”messagebackupthedistributiontreetostopsubsequentpackets
from
travelingwheretherearenomembers.DVMRPwillperiodicallyrefloodinordertoreach
anynewhoststhatwanttoreceivefromaparticulargroup.
Commands
ip dvmrp
UsethiscommandtoenabletheDVMRPprocess.Thenoformofthiscommanddisablesthe
DVMRPprocess:
* Advanced License Required *
DVMRP is an advanced routing feature that must be enabled with a license key. If you have purchased an
advanced license key, and have enabled routing on the device, you must activate your license as described
in “Activating Licensed Features” on page 15-3 in order to enable the DVMRP command set. If you wish to
purchase an advanced routing license, contact Enterasys Networks Sales.
Note: IGMP must be enabled on all VLANs running DVMRP, and must also be globally enabled
on the SecureStack C2. For details on enabling IGMP, refer to Chapter 11.
For information about... Refer to page...
ip dvmrp 17-31
ip dvmrp enable 17-32
ip dvmrp metric 17-32
show ip dvmrp 17-33

Enterasys SecureStack C2 Specifications

General

Brand	Enterasys
Model	SecureStack C2
Category	Switch
Language	English