passive-interface
Modifies the transmission of routing updates for IS-IS, OSPF, and RIP.
For IS-IS, configures an IS-IS interface only to advertise its IP address in the link-state PDUs; the interface does not send or receive IS-IS packets. Issue the complementary interface command to enable the interface to send and receive IS-IS packets. Optionally, you can set a route tag value for the IP addresses on an IS-IS passive interface before the route is propagated to other routers in an IS-IS domain. The no version disables advertisement of the IP address.
For OSPF, halts the transmission of routing updates on an OSPF interface. OSPF neither sends nor receives routing information through the specified interface, which appears as a stub network in the OSPF network. The no version reenables the transmission of routing updates.
For RIP, halts the transmission of multicast RIP messages. RIP messages are unicast to the interface (if it is the best path to a configured neighbor). The no version reenables the transmission of multicast messages on the interface.
IS-IS:
[ no ] passive-interface interfaceType interfaceSpecifier [tag tagValue ]
[ no ] passive-interface interfaceType interfaceSpecifier
- interfaceType—Interface type; see Interface Types and Specifiers in About This Guide
- interfaceSpecifier—Particular interface; format varies according to interface type; see Interface Types and Specifiers in About This Guide
- tagValue—Number in the range 1-4294967295 that identifies the route tag assigned to the IS-IS passive interface
Router Configuration