Lab 9. Filtering - AD

R1#

interface Loopback0

ip address 1.1.1.1 255.255.255.255

!

interface Loopback1

ip address 100.100.100.1 255.255.255.255

!

interface Loopback2

ip address 200.200.200.1 255.255.255.255

!

interface Loopback3

ip address 30.30.30.1 255.255.255.255

!

interface Serial0/0

ip address 12.12.12.1 255.255.255.0

!

router eigrp 10

network 1.1.1.1 0.0.0.0

network 12.12.12.1 0.0.0.0

no auto-summary

!

router ospf 1

log-adjacency-changes

network 30.30.30.1 0.0.0.0 area 0

!

router rip

version 2

network 200.200.200.0

R2#

interface Loopback0

ip address 2.2.2.2 255.255.255.255

!

interface FastEthernet0/0

ip address 23.23.23.2 255.255.255.0

!

interface Serial0/0

ip address 12.12.12.2 255.255.255.0

!

router eigrp 10

network 2.2.2.2 0.0.0.0

network 12.12.12.2 0.0.0.0

network 23.23.23.2 0.0.0.0

no auto-summary

R3#

interface Loopback0

ip address 3.3.3.3 255.255.255.255

!

interface Loopback1

ip address 10.0.0.1 255.255.255.255

!

interface Loopback2

ip address 10.0.0.2 255.255.255.255

!

interface Loopback3

ip address 10.0.0.3 255.255.255.255

!

interface Loopback4

ip address 10.0.0.4 255.255.255.255

!

interface Loopback5

ip address 10.0.0.5 255.255.255.255

!

interface Loopback6

ip address 10.0.0.6 255.255.255.255

!

interface Loopback7

ip address 10.0.0.7 255.255.255.255

!

interface FastEthernet0/0

ip address 23.23.23.3 255.255.255.0

!

router eigrp 10

network 3.3.3.3 0.0.0.0

network 10.0.0.1 0.0.0.0

network 10.0.0.2 0.0.0.0

network 10.0.0.3 0.0.0.0

network 10.0.0.4 0.0.0.0

network 10.0.0.5 0.0.0.0

network 10.0.0.6 0.0.0.0

network 10.0.0.7 0.0.0.0

network 23.23.23.3 0.0.0.0

no auto-summary

We can also filter specific IP using filtering AD. Let say we want IP Loopback 1.1.1.1 is not in the routing table R3.

R3(config-if)#do sh ip rou | i 1.1.1.1

D 1.1.1.1 [90/2323456] via 23.23.23.2, 00:02:50, FastEthernet0/0

R3(config-if)#access 2 permit 1.1.1.1

R3(config)#router eigrp 10

R3(config-router)#distanc 255 0.0.0.0 255.255.255.255 2

R3(config-router)#do sh ip route 1.1.1.1

% Network not in table

R3(config-router)#do ping 1.1.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5)