Route redistribution with PPP Multilink
Route redistribution allows us to take routes from one routing protocol and install those routes into different routing protocols. By default, routers only advertise the same routing protocol within the same AS. So, we need redistribution to inject different routing protocol routes into our network routing protocol.
In other words, Redistribution is the process of exchanging routing information between different routing protocols.
We can use redistribution when we using multiple protocols or migrating to a more advanced routing, we can use redistribution if you have a mismatch between devices (vendors) or political boundaries.
Note: internal routes are routes advertised within the same protocol.
External routes are routes that get redistributed.
Multilink PPP helps us to combine (bundle) multiple physical serial links into a single logical link. You will only need one single subnet for the logical multilink PPP interface and if we use EIGRP or OSPF only a single neighbor adjacency is required. Multilink PPP does load balancing on layer 2. This is pretty good.
let’s see the configuration: -
- Configure the topology as per the diagram; we are using four serial range 3/0 to 3/3 between router 1 and router 2. Configure bundle of four more serial links 3/4 to 3/7 between router 2 and router 3.
- Configure single logical link, group number 1 between router 1 and router 2.
- Configure single logical link, group number 2 between router 2 and router 3
- Configure channel ip address 192.168.1.0/24 between router 1 and router 2
- Configure channel ip address 192.168.2.0/24 between router 2 and router 3
- Configure loopbacks as per the diagram
- Configure RIP, OSPF and EIGRP as per the topology and advertise networks as per the topology
- Configure redistribution and make sure the entire routers get all the networks
R1(config)#Interface fastethernet 0/0
R1(config-if)#Ip address 10.1.1.1 255.255.255.0
R1(config-if)#No keepalive
R1(config-if)#No shutdown
R1(config-if)#Exit
R1(config)#Interface loopback 0
R1(config-if)#Ip address 11.0.0.1 255.255.255.0
R1(config-if)#Interface loopback 1
R1(config-if)#Ip address 11.0.1.1 255.255.255.0
R1(config-if)#exit
R1(config)#Interface loopback 2
R1(config-if)#Ip address 11.0.2.1 255.255.255.0
R1(config-if)#exit
R1(config)#Interface loopback 3
R1(config-if)#Ip address 11.0.3.1 255.255.25
R1(config-if)#exit
R1(config)#Interface multilink 1
R1(config-if)#Ppp multilink group 1
R1(config-if)#Ip address 192.168.1.1 255.255.255.0
R1(config-if)#Exit
R1(config)#Interface serial 3/0
R1(config-if)#No ip address
R1(config-if)#Encapsulation ppp
R1(config-if)#Ppp multilink
R1(config-if)#Ppp multilink group 1
R1(config-if)#No shutdown
R1(config-if)#Exit
R1(config)#Interface serial 3/1
R1(config-if)#No ip address
R1(config-if)#Encapsulation ppp
R1(config-if)#Ppp multilink
R1(config-if)#Ppp multilink group 1
R1(config-if)#No shutdown
R1(config-if)#Exit
R1(config)#Interface serial 3/2
R1(config-if)#No ip address
R1(config-if)#Encapsulation ppp
R1(config-if)#Ppp multilink
R1(config-if)#Ppp multilink group 1
R1(config-if)#No shutdown
R1(config-if)#Exit
R1(config)#Interface serial 3/3
R1(config-if)#No ip address
R1(config-if)#Encapsulation ppp
R1(config-if)#Ppp multilink
R1(config-if)#Ppp multilink group 1
R1(config-if)#No shutdown
R1(config-if)#Exit
R2(config)#Interface fastethernet 0/0
R2(config-if)#Ip address 20.1.1.1 255.255.255.0
R2(config-if)#No keepalive
R2(config-if)#No shutdown
R2(config-if)#Exit
R2(config)#Interface loopback 0
R2(config-if)#Ip address 12.0.0.1 255.255.255.0
R2(config-if)#Interface loopback 1
R2(config-if)#Ip address 12.0.1.1 255.255.255.0
R2(config-if)#exit
R2(config)#Interface loopback 2
R2(config-if)#Ip address 12.0.2.1 255.255.255.0
R2(config-if)#exit
R2(config)#Interface loopback 3
R2(config-if)#Ip address 12.0.3.1 255.255.255.0
R2(config-if)#exit
R2(config)#Interface multilink 1
R2(config-if)#Ip address 192.168.1.2 255.255.255.0
R2(config-if)#Exit
R2(config)#Interface serial 3/0
R2(config-if)#No ip address
R2(config-if)#Encapsulation ppp
R2(config-if)#Ppp multilink
R2(config-if)#Ppp multilink group 1
R2(config-if)#No shutdown
R2(config-if)#Exit
R2(config)#Interface serial 3/1
R2(config-if)#No ip address
R2(config-if)#Encapsulation ppp
R2(config-if)#Ppp multilink
R2(config-if)#Ppp multilink group 1
R2(config-if)#No shutdown
R2(config-if)#Exit
R2(config)#Interface serial 3/2
R2(config-if)#No ip address
R2(config-if)#Encapsulation ppp
R2(config-if)#Ppp multilink
R2(config-if)#Ppp multilink group 1
R2(config-if)#No shutdown
R2(config-if)#Exit
R2(config)#Interface serial 3/3
R2(config-if)#No ip address
R2(config-if)#Encapsula
R2(config-if)#Ppp multilink
R2(config-if)#Ppp multilink group 1
R2(config-if)#No shutdown
R2(config-if)#Exit
R2(config)#Interface multilink 2
R2(config-if)#Ppp multilink group 2
R2(config-if)#Ip address 192.168.2.1 255.255.255.0
R2(config-if)#Exit
R2(config)#Interface serial 3/4
R2(config-if)#No ip address
R2(config-if)#Encapsulation ppp
R2(config-if)#Ppp multilink
R2(config-if)#Ppp multilink group 2
R2(config-if)#No shutdown
R2(config-if)#Exit
R2(config)#Interface serial 3/5
R2(config-if)#No ip address
R2(config-if)#Encapsulation ppp
R2(config-if)#Ppp multilink
R2(config-if)#Ppp multilink group 2
R2(config-if)#No shutdown
R2(config-if)#Exit
R2(config)#Interface serial 3/6
R2(config-if)#No ip address
R2(config-if)#Encapsulation ppp
R2(config-if)#Ppp multilink
R2(config-if)#Ppp multilink group 2
R2(config-if)#No shutdown
R2(config-if)#Exit
R2(config)#Interface serial 3/7
R2(config-if)#No ip address
R2(config-if)#Encapsulation ppp
R2(config-if)#Ppp multilink
R2(config-if)#Ppp multilink group 2
R2(config-if)#No shutdown
R2(config-if)#Exit
R3(config)#Interface fastethernet 0/0
R3(config-if)#Ip address 30.1.1.1 255.255.255.0
R3(config-if)#No keepalive
R3(config-if)#No shutdown
R3(config-if)#Exit
R3(config)#Interface loopback 0
R3(config-if)#Ip address 13.0.0.1 255.255.255.0
R3(config-if)#Interface loopback 1
R3(config-if)#Ip address 13.0.1.1 255.255.255.0
R3(config-if)#exit
R3(config)#Interface loopback 2
R3(config-if)#Ip address 13.0.2.1 255.255.255.0
R3(config-if)#exit
R3(config)#Interface loopback 3
R3(config-if)#Ip address 13.0.3.1 255.255.255.0
R3(config-if)#exit
R3(config)#Interface multilink 2
R3(config-if)#Ppp multilink group 2
R3(config-if)#Ip address 192.168.2.2 255.255.255.0
R3(config-if)#Exit
R3(config)#Interface serial 3/4
R3(config-if)#No ip address
R3(config-if)#Encapsulation ppp
R3(config-if)#Ppp multilink
R3(config-if)#Ppp multilink group 2
R3(config-if)#No shutdown
R3(config-if)#Exit
R3(config)#Interface serial 3/5
R3(config-if)#No ip address
R3(config-if)#Encapsulation ppp
R3(config-if)#Ppp multilink
R3(config-if)#Ppp multilink group 2
R3(config-if)#No shutdown
R3(config-if)#Exit
R3(config)#Interface serial 3/6
R3(config-if)#No ip address
R3(config-if)#Encapsulation ppp
R3(config-if)#Ppp multilink group 2
R3(config-if)#No shutdown
R3(config-if)#Exit
R3(config)#Interface serial 3/7
R3(config-if)#No ip address
R3(config-if)#Encapsulation ppp
R3(config-if)#Ppp multilink group 2
R3(config-if)#No shutdown
R3(config-if)#Exit
R1#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 10.1.1.1 YES manual up up
Serial3/0 unassigned YES unset up up
Serial3/1 unassigned YES unset up up
Serial3/2 unassigned YES unset up up
Serial3/3 unassigned YES unset up up
Loopback0 11.0.0.1 YES manual up up
Loopback1 11.0.1.1 YES manual up up
Loopback2 11.0.2.1 YES manual up up
Loopback3 11.0.3.1 YES manual up up
Multilink1 192.168.1.1 YES manual up up
R2#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 20.1.1.1 YES manual up up
Serial3/0 unassigned YES unset up up
Serial3/1 unassigned YES unset up up
Serial3/2 unassigned YES unset up up
Serial3/3 unassigned YES unset up up
Serial3/4 unassigned YES unset up up
Serial3/5 unassigned YES unset up up
Serial3/6 unassigned YES unset up up
Serial3/7 unassigned YES unset up up
Loopback0 12.0.0.1 YES manual up up
Loopback1 12.0.1.1 YES manual up up
Loopback2 12.0.2.1 YES manual up up
Loopback3 12.0.3.1 YES manual up up
Multilink1 192.168.1.2 YES manual up up
Multilink2 192.168.2.1 YES manual up up
R3#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 30.1.1.1 YES manual up up
Serial3/4 unassigned YES unset up up
Serial3/5 unassigned YES unset up up
Serial3/6 unassigned YES unset up up
Serial3/7 unassigned YES unset up up
Loopback0 13.0.0.1 YES manual up up
Loopback1 13.0.1.1 YES manual up up
Loopback2 13.0.2.1 YES manual up up
Loopback3 13.0.3.1 YES manual up up
Multilink2 192.168.2.2 YES manual up up
R1#show interfaces multilink 1
Multilink1 is up, line protocol is up
Hardware is multilink group interface
Internet address is 192.168.1.1/24
MTU 1500 bytes, BW 6176 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open, multilink Open
R1#show run interface multilink 1
Building configuration…
Current configuration : 104 bytes
!
interface Multilink1
ip address 192.168.1.1 255.255.255.0
ppp multilink
ppp multilink group 1
end
R2# show interfaces multilink 1
Multilink1 is up, line protocol is up
Hardware is multilink group interface
Internet address is 192.168.1.2/24
MTU 1500 bytes, BW 6176 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open, multilink Open
R2# show run interface multilink 1
Building configuration…
Current configuration : 104 bytes
!
interface Multilink1
ip address 192.168.1.2 255.255.255.0
ppp multilink
ppp multilink group 1
end
R3# show interfaces multilink 2
Multilink2 is up, line protocol is up
Hardware is multilink group interface
Internet address is 192.168.2.2/24
MTU 1500 bytes, BW 6176 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open, multilink Open
R1(config)#router rip
R1(config-router)#version 2
R1(config-router)#network 11.0.0.0
R1(config-router)#network 11.0.1.0
R1(config-router)#network 11.0.2.0
R1(config-router)#network 11.0.3.0
R1(config-router)#no auto-summary
R1(config-router)#exit
R1(config)#router eigrp 100
R1(config-router)#network 10.0.0.0
R1(config-router)#no auto-summary
R1(config-router)#exit
R1(config)#router ospf 1
R1(config-router)#network 192.168.1.0 255.0.0.0 area 0
R1(config-router)#exit
R2(config)#router rip
R2(config-router)#version 2
R2(config-router)#network 20.0.0.0
R2(config-router)#no auto-summary
R2(config-router)#exit
R2(config)#router eigrp 200
R2(config-router)#network 12.0.0.0
R2(config-router)#no auto-summary
R2(config-router)#exit
R2(config)#router ospf 1
R2(config-router)#network 192.168.1.0 255.0.0.0 area 0
R2(config-router)#exit
R2(config)#router ospf 2
R2(config-router)#network 192.168.2.0 255.0.0.0 area 0
R2(config-router)#exit
R3(config)#router eigrp 300
R3(config-router)#network 30.0.0.0
R3(config-router)#no auto-summary
R3(config-router)#exit
R3(config)#router rip.
R3(config-router)#ver 2
R3(config-router)#network 13.0.0.0
R3(config-router)#network 13.0.1.0
R3(config-router)#network 13.0.2.0
R3(config-router)#network 13.0.3.0
R3(config-router)#no auto-summary
R3(config-router)#exit
R3(config)#router ospf 2
R3(config-router)#network 192.168.2.0 255.0.0.0 area 0
R3(config-router)#exit
R1(config)#router ospf 1
R1(config-router)#redistribute eigrp 100 subnet metric-type 1
R1(config-router)#redistribute rip subnet metric-type 1
R1(config-router)#exit
R1(config)#router eigrp 100
R1(config-router)#redistribute rip metric 1000 2000 255 1 1500
R1(config-router)#redistribute ospf 1 metric 1000 2000 255 1 1500
R1(config-router)#exit
R1(config)#router rip
R1(config-router)#redistribute ospf 1 metric 4
R1(config-router)#exit
R2(config)#router eigrp 200
R2(config-router)#redistribute ospf 1 metric 1000 2000 255 1 1500
R2(config-router)#redistribute rip metric 1000 2000 255 1 1500
R2(config-router)#exit
R2(config)#router rip
R2(config-router)#redistribute eigrp 200 metric 4
R2(config-router)#redistribute ospf 1 metric 4
R2(config-router)#exit
R2(config)#router ospf 1
R2(config-router)#redistribute eigrp 200 subnets metric-type 2
R2(config-router)#redistribute rip subnets metric-type 2
R2(config-router)#redistribute ospf 2 subnets metric-type 2
R2(config-router)#exit
R2(config)#router ospf 2
R2(config-router)#redistribute ospf 1 subnet metric-type 2
R2(config-router)#redistribute rip subnet metric-type 2
R2(config-router)#redistribute eigrp 200 subnet metric-type 2
R2(config-router)#exit
R3(config)#router eigrp 300
R3(config-router)#redistribute ospf 2 metric 1000 2000 255 1 1500
R3(config-router)#redistribute ospf 3 metric 1000 2000 255 1 1500
R3(config-router)#redistribute rip metric 1000 2000 255 1 1500
R3(config-router)#exit
R3(config)#router ospf 2
R3(config-router)#redistribute eigrp 300 subnet metric-type 2
R3(config-router)#redistribute ospf 3 subnet metric-type 2
R3(config-router)#redistribute rip subnet metric-type 2
R3(config-router)#exit
R3(config)#router rip
R3(config-router)#redistribute eigrp 300 metric 4
R3(config-router)#redistribute ospf 2 metric 4
R3(config-router)#redistribute ospf 3 metric 4
R3(config-router)#exit
R1#show ip route
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.1.1.0/24 is directly connected, FastEthernet0/0
L 10.1.1.1/32 is directly connected, FastEthernet0/0
11.0.0.0/8 is variably subnetted, 8 subnets, 2 masks
C 11.0.0.0/24 is directly connected, Loopback0
L 11.0.0.1/32 is directly connected, Loopback0
C 11.0.1.0/24 is directly connected, Loopback1
L 11.0.1.1/32 is directly connected, Loopback1
C 11.0.2.0/24 is directly connected, Loopback2
L 11.0.2.1/32 is directly connected, Loopback2
C 11.0.3.0/24 is directly connected, Loopback3
L 11.0.3.1/32 is directly connected, Loopback3
12.0.0.0/24 is subnetted, 4 subnets
O E2 12.0.0.0 [110/20] via 192.168.1.2, 00:53:23, Multilink1
O E2 12.0.1.0 [110/20] via 192.168.1.2, 00:53:23, Multilink1
O E2 12.0.2.0 [110/20] via 192.168.1.2, 00:53:23, Multilink1
O E2 12.0.3.0 [110/20] via 192.168.1.2, 00:53:23, Multilink1
13.0.0.0/24 is subnetted, 4 subnets
O E2 13.0.0.0 [110/20] via 192.168.1.2, 00:44:04, Multilink1
O E2 13.0.1.0 [110/20] via 192.168.1.2, 00:44:04, Multilink1
O E2 13.0.2.0 [110/20] via 192.168.1.2, 00:44:04, Multilink1
O E2 13.0.3.0 [110/20] via 192.168.1.2, 00:44:04, Multilink1
20.0.0.0/24 is subnetted, 1 subnets
O E2 20.1.1.0 [110/20] via 192.168.1.2, 00:53:13, Multilink1
30.0.0.0/24 is subnetted, 1 subnets
O E2 30.1.1.0 [110/20] via 192.168.1.2, 00:47:40, Multilink1
192.168.1.0/24 is variably subnetted, 3 subnets, 2 masks
C 192.168.1.0/24 is directly connected, Multilink1
L 192.168.1.1/32 is directly connected, Multilink1
C 192.168.1.2/32 is directly connected, Multilink1
O 192.168.2.0/24 [110/32] via 192.168.1.2, 01:11:54, Multilink1
R2#show ip route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 1 subnets
O E1 10.1.1.0 [110/36] via 192.168.1.1, 01:01:19, Multilink1
11.0.0.0/24 is subnetted, 4 subnets
O E1 11.0.0.0 [110/36] via 192.168.1.1, 01:01:08, Multilink1
O E1 11.0.1.0 [110/36] via 192.168.1.1, 01:01:08, Multilink1
O E1 11.0.2.0 [110/36] via 192.168.1.1, 01:01:08, Multilink1
O E1 11.0.3.0 [110/36] via 192.168.1.1, 01:01:08, Multilink1
12.0.0.0/8 is variably subnetted, 8 subnets, 2 masks
C 12.0.0.0/24 is directly connected, Loopback0
L 12.0.0.1/32 is directly connected, Loopback0
C 12.0.1.0/24 is directly connected, Loopback1
L 12.0.1.1/32 is directly connected, Loopback1
C 12.0.2.0/24 is directly connected, Loopback2
L 12.0.2.1/32 is directly connected, Loopback2
C 12.0.3.0/24 is directly connected, Loopback3
L 12.0.3.1/32 is directly connected, Loopback3
13.0.0.0/24 is subnetted, 4 subnets
O E2 13.0.0.0 [110/20] via 192.168.2.2, 00:44:29, Multilink2
O E2 13.0.1.0 [110/20] via 192.168.2.2, 00:44:29, Multilink2
O E2 13.0.2.0 [110/20] via 192.168.2.2, 00:44:29, Multilink2
O E2 13.0.3.0 [110/20] via 192.168.2.2, 00:44:29, Multilink2
20.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 20.1.1.0/24 is directly connected, FastEthernet0/0
L 20.1.1.1/32 is directly connected, FastEthernet0/0
30.0.0.0/24 is subnetted, 1 subnets
O E2 30.1.1.0 [110/20] via 192.168.2.2, 00:48:05, Multilink2
192.168.1.0/24 is variably subnetted, 3 subnets, 2 masks
C 192.168.1.0/24 is directly connected, Multilink1
C 192.168.1.1/32 is directly connected, Multilink1
L 192.168.1.2/32 is directly connected, Multilink1
192.168.2.0/24 is variably subnetted, 3 subnets, 2 masks
C 192.168.2.0/24 is directly connected, Multilink2
L 192.168.2.1/32 is directly connected, Multilink2
C 192.168.2.2/32 is directly connected, Multilink2
R3#show ip route
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 1 subnets
O E1 10.1.1.0 [110/52] via 192.168.2.1, 01:01:39, Multilink2
11.0.0.0/24 is subnetted, 4 subnets
O E1 11.0.0.0 [110/52] via 192.168.2.1, 01:01:27, Multilink2
O E1 11.0.1.0 [110/52] via 192.168.2.1, 01:01:27, Multilink2
O E1 11.0.2.0 [110/52] via 192.168.2.1, 01:01:27, Multilink2
O E1 11.0.3.0 [110/52] via 192.168.2.1, 01:01:27, Multilink2
12.0.0.0/24 is subnetted, 4 subnets
O E2 12.0.0.0 [110/20] via 192.168.2.1, 00:54:07, Multilink2
O E2 12.0.1.0 [110/20] via 192.168.2.1, 00:54:07, Multilink2
O E2 12.0.2.0 [110/20] via 192.168.2.1, 00:54:07, Multilink2
O E2 12.0.3.0 [110/20] via 192.168.2.1, 00:54:07, Multilink2
13.0.0.0/8 is variably subnetted, 8 subnets, 2 masks
C 13.0.0.0/24 is directly connected, Loopback0
L 13.0.0.1/32 is directly connected, Loopback0
C 13.0.1.0/24 is directly connected, Loopback1
L 13.0.1.1/32 is directly connected, Loopback1
C 13.0.2.0/24 is directly connected, Loopback2
L 13.0.2.1/32 is directly connected, Loopback2
C 13.0.3.0/24 is directly connected, Loopback3
L 13.0.3.1/32 is directly connected, Loopback3
20.0.0.0/24 is subnetted, 1 subnets
O E2 20.1.1.0 [110/20] via 192.168.2.1, 00:53:58, Multilink2
30.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 30.1.1.0/24 is directly connected, FastEthernet0/0
L 30.1.1.1/32 is directly connected, FastEthernet0/0
O 192.168.1.0/24 [110/32] via 192.168.2.1, 01:07:21, Multilink2
192.168.2.0/24 is variably subnetted, 3 subnets, 2 masks
C 192.168.2.0/24 is directly connected, Multilink2
C 192.168.2.1/32 is directly connected, Multilink2
L 192.168.2.2/32 is directly connected, Multilink2
R1#show ip protocols
*** IP Routing is NSF aware ***
Routing Protocol is “rip”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Sending updates every 30 seconds, next due in 22 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Redistributing: rip, eigrp 100, ospf 1 (internal, external 1 & 2, nssa-external 1 & 2)
Default version control: send version 2, receive version 2
Interface Send Recv Triggered RIP Key-chain
Loopback0 2 2
Loopback1 2 2
Loopback2 2 2
Loopback3 2 2
Automatic network summarization is not in effect
Maximum path: 4
Routing for Networks:
11.0.0.0
Routing Information Sources:
Gateway Distance Last Update
Distance: (default is 120)
Routing Protocol is “eigrp 100”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
Redistributing: rip, ospf 1
EIGRP-IPv4 Protocol for AS(100)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0
NSF-aware route hold timer is 240
Router-ID: 11.0.3.1
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
Automatic Summarization: disabled
Maximum path: 4
Routing for Networks:
10.0.0.0
Routing Information Sources:
Gateway Distance Last Update
Distance: internal 90 external 170
Routing Protocol is “ospf 1”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 11.0.3.1
It is an autonomous system boundary router
Redistributing External Routes from,
rip, includes subnets in redistribution
eigrp 100, includes subnets in redistribution
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
192.0.0.0 0.255.255.255 area 0
Routing Information Sources:
Gateway Distance Last Update
12.0.3.1 110 00:54:32
13.0.3.1 110 00:45:22
Distance: (default is 110)
R2#show ip protocols
*** IP Routing is NSF aware ***
Routing Protocol is “rip”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Sending updates every 30 seconds, next due in 19 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Redistributing: rip, eigrp 200, ospf 1 (internal, external 1 & 2, nssa-external 1 & 2)
Default version control: send version 2, receive version 2
Interface Send Recv Triggered RIP Key-chain
FastEthernet0/0 2 2
Automatic network summarization is not in effect
Maximum path: 4
Routing for Networks:
20.0.0.0
Routing Information Sources:
Gateway Distance Last Update
Distance: (default is 120)
Routing Protocol is “eigrp 200”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
Redistributing: rip, ospf 1
EIGRP-IPv4 Protocol for AS(200)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0
NSF-aware route hold timer is 240
Router-ID: 12.0.3.1
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
Automatic Summarization: disabled
Maximum path: 4
Routing for Networks:
12.0.0.0
Routing Information Sources:
Gateway Distance Last Update
Distance: internal 90 external 170
Routing Protocol is “ospf 1”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 12.0.3.1
It is an autonomous system boundary router
Redistributing External Routes from,
rip, includes subnets in redistribution
eigrp 200, includes subnets in redistribution
ospf 2, includes subnets in redistribution
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
192.0.0.0 0.255.255.255 area 0
Routing Information Sources:
Gateway Distance Last Update
11.0.3.1 110 01:02:23
13.0.3.1 110 00:45:44
Distance: (default is 110)
Routing Protocol is “ospf 2”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 12.0.2.1
It is an autonomous system boundary router
Redistributing External Routes from,
rip, includes subnets in redistribution
eigrp 200, includes subnets in redistribution
ospf 1, includes subnets in redistribution
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
192.0.0.0 0.255.255.255 area 0
Routing Information Sources:
Gateway Distance Last Update
Distance: (default is 110)
Routing Protocol is “eigrp 100”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
Redistributing: rip, ospf 1
EIGRP-IPv4 Protocol for AS(100)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0
NSF-aware route hold timer is 240
Router-ID: 12.0.3.1
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
Automatic Summarization: disabled
Maximum path: 4
Routing for Networks:
Routing Information Sources:
Gateway Distance Last Update
Distance: internal 90 external 170
R3#show ip protocols
*** IP Routing is NSF aware ***
Routing Protocol is “eigrp 300”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
Redistributing: rip, ospf 2, ospf 3
EIGRP-IPv4 Protocol for AS(300)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0
NSF-aware route hold timer is 240
Router-ID: 13.0.3.1
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
Automatic Summarization: disabled
Maximum path: 4
Routing for Networks:
30.0.0.0
Routing Information Sources:
Gateway Distance Last Update
Distance: internal 90 external 170
Routing Protocol is “rip”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Sending updates every 30 seconds, next due in 23 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Redistributing: eigrp 300, rip, ospf 2 (internal, external 1 & 2, nssa-external 1 & 2)
Redistributing: ospf 3 (internal, external 1 & 2, nssa-external 1 & 2)
Default version control: send version 2, receive version 2
Interface Send Recv Triggered RIP Key-chain
Loopback0 2 2
Loopback1 2 2
Loopback2 2 2
Loopback3 2 2
Automatic network summarization is not in effect
Maximum path: 4
Routing for Networks:
13.0.0.0
Routing Information Sources:
Gateway Distance Last Update
Distance: (default is 120)
Routing Protocol is “ospf 2”
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Router ID 13.0.3.1
It is an autonomous system boundary router
Redistributing External Routes from,
eigrp 300, includes subnets in redistribution
rip, includes subnets in redistribution
ospf 3, includes subnets in redistribution
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
192.0.0.0 0.255.255.255 area 0
Routing Information Sources:
Gateway Distance Last Update
11.0.3.1 110 01:02:42
12.0.3.1 110 00:55:13
Distance: (default is 110)
