654 BigIron RX Series Configuration Guide53-1002253-01Configuring DVMRP23BigIron RX(config-dvmrp-router)# default-gateway 192.35.4.1Syntax: default-gateway Modifying DVMRP interface parametersDVMRP global parameters come with preset values. The defaults work well in most networks, butyou can modify the following interface parameters if you need to:• TTL• Metric• AdvertisingModifying the TTLThe TTL defines the minimum value required in a packet in order for the packet to be forwarded outthe interface. For example, if the TTL for an interface is set at 10 it means that only those packetswith a TTL value of 10 or more are forwarded. Likewise, if an interface is configured with a TTLThreshold value of 1, all packets received on that interface are forwarded. Possible values are from1 – 64. The default value is 1.To set a TTL of 64, enter the following.BigIron RX(config)# int e 1/4BigIron RX(config-if-e10000-1/4)# ip dvmrp ttl 60Syntax: [no] ip dvmrp ttl-threshold <1-64>Modifying the metricThe router uses the metric when establishing reverse paths to some networks on directly attachedinterfaces. Possible values are from 1 – 31 hops. The default is 1.To set a metric of 15 for a DVMRP interface, enter the following.BigIron RX(config)# interface e 3/5BigIron RX(config-if-e10000-3/5)# ip dvmrp metric 15Syntax: [no] ip dvmrp metric <1-31>Enabling advertisingYou can turn the advertisement of a local route on (enable) or off (disable) on the interface. Bydefault, advertising is enabled.To enable advertising on an interface, enter the following.BigIron RX(config-if-e10000-1/4)# ip dvmrp advertise-local onSyntax: [no] ip dvmrp advertise-local on | off
