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What is the meaning of PASSIVE interface in RIP, IGRP, EIGRP
& OSPF??
Can any one explain..!!!
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Answer Posted / siba (dip)
Passive interface command is used to control the
advertisement of routing protocol,passive interface command
restrict outgoing advertisement only.But in the case is
little bit different in EIGRP. In EIGRP, when passive
interface command is enable between two routers , it is not
only suppersing routing updates but also HELLO messages
also.In result, router also lost the neighbor relationship
with routers. So it also suppers the incoming updates
also.With EIGRP running on a network, the passive interface
command stops both outgoing and incoming routing updates.
since the effect of the command cause the router to stop
sending and receiving hello packets over an interface.
So try it today - configuer eigrp & don't put passive
interface command then after configuering eigrp, try the
command <debug eigrp packet hello>it will show all the
infomation required And also try <show eigrp neighbor>You
will get information.Then you try <passive interface
command>repeat !st & 2nd command above mentioned , you
won't get any information.For trouble shoot configure
<distributed-list>And <no passive-interface command>.
In the case of RIP & IGRP passive interface command stops
the router from sending updates to a particular neighbor to
listen & use routing updates from that neighbor .
| Is This Answer Correct ? | 19 Yes | 2 No |
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