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default-gateway
Use this command to specify the default DVMRP gateway for IP multicast
traffic. Use the
no
form to remove the default gateway.
Syntax
default-gateway
ip-address
no default-gateway
ip-address
- IP address of the default DVMRP gateway.
Default Setting
None
Command Mode
Router Configuration
Command Usage
• The specified interface advertises itself as a default route to
neighboring DVMRP routers. It advertises the default route out
through its other interfaces. Neighboring routers on the other
interfaces return Poison Reverse messages for the default route back to
the router. When the router receives these messages, it records all the
downstream routers for the default route.
• When multicast traffic with an unknown source address (i.e., not found
in the route table) is received on the default upstream route interface,
the router forwards this traffic out through the other interfaces (with
known downstream routers). However, when multicast traffic with an
unknown source address is received on another interface, the router
drops it because only the default upstream interface can forward
multicast traffic from an unknown source.
Example
Console(config-router)#default-gateway 10.1.0.253
Console(config-router)#
Summary of Contents for 8612XL3
Page 2: ......
Page 26: ...CONTENTS xxvi ...
Page 40: ...INTRODUCTION 1 14 ...
Page 69: ...BASIC CONFIGURATION 3 15 ...
Page 175: ...PORT CONFIGURATION 3 121 ...
Page 337: ...IP ROUTING 3 283 Web Click Routing Protocol RIP Statistics ...
Page 379: ...MULTICAST ROUTING 3 325 Command Usage ...
Page 396: ...CONFIGURING THE SWITCH 3 342 ...
Page 582: ...COMMAND LINE INTERFACE 4 186 ...
Page 806: ... 224 Command Mode Privileged Exec Example Console clear vrrp 1 interface 1 counters Console ...
Page 826: ... 6 ...
Page 828: ...TROUBLESHOOTING B 2 ...
Page 838: ...GLOSSARY Glossary 10 ...
Page 845: ......