EIGRP Filtering with Administrative Distance

R1(config-router)#
access-list 20 permit 3.3.3.0 0.0.0.255
!
router eigrp 100
variance 3
network 0.0.0.0
distribute-list 10 in FastEthernet1/0
distance 240 0.0.0.0 255.255.255.255 20
no auto-summary


Filtering based on the neighbor source IP



R1#
access-list 20 permit 3.3.3.0 0.0.0.255
!
router eigrp 100
 network 0.0.0.0
 distribute-list 10 in FastEthernet1/0
 distance 240 14.1.1.0 0.0.0.255 20
 auto-summary


R1#
int f0/0
shut

Route learned via R4 having distance 240