passive interface

i wanted to check what exactly happens to the eigrp packets sent from R2 when the s1/0 of the R1 is made passive.

R1

!
interface Loopback1
 ip address 192.168.1.1 255.255.255.0
 ip ospf network point-to-point
!

!
interface Serial1/0
 ip address 10.10.10.1 255.255.255.0
 serial restart-delay 0
!

!
router eigrp 10
 passive-interface Serial1/0
 network 10.10.10.0 0.0.0.255
 network 192.168.1.0
 distribute-list 20 out Serial1/0
 auto-summary
!
access-list 20 permit 192.168.1.0 0.0.0.255
access-list 20 deny   any
access-list 20 permit any
!

Here is the result on R1 and even though the R2 is sending the hello packets, it is never replied. Its sending the hello packets only on loop back.


Router#
*Mar  1 00:23:38.323: EIGRP: Sending HELLO on Loopback1
*Mar  1 00:23:38.323:   AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:23:38.327: EIGRP: Received HELLO on Loopback1 nbr 192.168.1.1
*Mar  1 00:23:38.327:   AS 10, Flags 0x0, Seq 0/0 idbQ 0/0
*Mar  1 00:23:38.331: EIGRP: Packet from ourselves ignored
Router#
*Mar  1 00:23:42.919: EIGRP: Sending HELLO on Loopback1
*Mar  1 00:23:42.919:   AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:23:42.923: EIGRP: Received HELLO on Loopback1 nbr 192.168.1.1
*Mar  1 00:23:42.923:   AS 10, Flags 0x0, Seq 0/0 idbQ 0/0
*Mar  1 00:23:42.927: EIGRP: Packet from ourselves ignored
Router#
*Mar  1 00:23:47.587: EIGRP: Sending HELLO on Loopback1
*Mar  1 00:23:47.587:   AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:23:47.591: EIGRP: Received HELLO on Loopback1 nbr 192.168.1.1
*Mar  1 00:23:47.591:   AS 10, Flags 0x0, Seq 0/0 idbQ 0/0
*Mar  1 00:23:47.595: EIGRP: Packet from ourselves ignored