In this lab, I am gonna teach you RIP Configuration of 4 Routers.
Table of Contents
VLSM
Given Network: 210.80.50.0
Required hosts on Router 1= 50
Required hosts on Router 2= 25
Required hosts on Router 3= 14
Required hosts on Router 4= 5
R1<= 50
50<= 2n – 2
50<= 26 – 2
50<= 64 – 2
50<= 62
Total number of network bits = 32
32 – n = 32 – 6 = 26 (CIDR value of given network i.e. Router 1)
i.e. 210.80.50.0/26
N.S.M = 11111111. 11111111. 11111111.11000000
= 255.255.255.192
Block Size = 256 – N.S.M
= 256 – 192 = 64
Note: Add this block size in given network so that we can get our new network for Router 2.
So the new network is 210.80.50.64/?
Now find FVH, LVH and Broadcast address
Given Network | 210 | 80 | 50 | 0 |
First Valid Host-FVH | 210 | 80 | 50 | 1 |
Last Valid Host-LVH | 210 | 80 | 50 | 62 |
Broadcast | 210 | 80 | 50 | 63 |
New Network | 210 | 80 | 50 | 64 |
R2<= 25
25<= 2n – 2
25<= 25 – 2
25<= 32 – 2
25<= 30
Total number of network bits = 32
32 – n = 32 – 5 = 27 (CIDR value of given network i.e. Router 2)
i.e. 210.80.50.64/27
N.S.M = 11111111. 11111111. 11111111.11100000
= 255.255.255.224
Block Size = 256 – N.S.M
= 256 – 224 = 32
Note: Add this block size in given network so that we can get our new network for Router 3.
So the new network is 210.80.50.96/?
Now find FVH, LVH and Broadcast address
Given Network | 210 | 80 | 50 | 64 |
First Valid Host-FVH | 210 | 80 | 50 | 65 |
Last Valid Host-LVH | 210 | 80 | 50 | 94 |
Broadcast | 210 | 80 | 50 | 95 |
New Network | 210 | 80 | 50 | 96 |
R3<= 14
14<= 2n – 2
14<= 24 – 2
14<= 16 – 2
14<= 14
Total number of network bits = 32
32 – n = 32 – 4 = 28 (CIDR value of given network i.e. Router 3)
i.e. 210.80.50.96/28
N.S.M = 11111111. 11111111. 11111111.11110000
= 255.255.255.240
Block Size = 256 – N.S.M
= 256 – 240 = 16
Note: Add this block size in given network so that we can get our new network for Router 4.
So the new network is 210.80.50.112/?
Now find FVH, LVH and Broadcast address
Given Network | 210 | 80 | 50 | 96 |
First Valid Host-FVH | 210 | 80 | 50 | 97 |
Last Valid Host-LVH | 210 | 80 | 50 | 110 |
Broadcast | 210 | 80 | 50 | 111 |
New Network | 210 | 80 | 50 | 112 |
R4 <= 5
5 <= 2n – 2
5 <= 23 – 2
5 <= 8 – 2
5 <= 6
Total number of network bits = 32
32 – n = 32 – 3 = 29 (CIDR of given network i.e. Router 4)
i.e. 210.80.50.112/29
N.S.M = 11111111.11111111.11111111.11111000
= 255.255.255.248
Block Size = 256 – N.S.M
= 256 – 248 = 8
Note: Add this block size in given network so that we can get our new network for Router 1 and 2 (Virtual Network).
so the new network is 210.80.50.120/?
Now find FVH, LVH and Broadcast address
Given Network | 210 | 80 | 50 | 112 |
First Valid Host-FVH | 210 | 80 | 50 | 113 |
Last Valid Host-LVH | 210 | 80 | 50 | 118 |
Broadcast | 210 | 80 | 50 | 119 |
New Network | 210 | 80 | 50 | 120 |
Router 1 & 2 <= 2 hosts (we required only two IP to connect 2 routers)
2 <= 2n – 2
2 <= 22 – 2
2 <= 4 – 2
2 <= 2
Total number of network bits = 32
32 – n = 32 – 2 = 30 (CIDR of Virtual network (R1&R2)
i.e. 210.80.50.120/30
N.S.M = 11111111.11111111.11111111.11111100
= 255.255.255.252
Block Size = 256 – N.S.M
= 256 – 252 = 4
Note: Add this block size in given network so that we can get our new network for Router 2 and 3 (Virtual Network).
so the new network is 210.80.50.124/?
Now find FVH, LVH and Broadcast address
Given Network | 210 | 80 | 50 | 120 |
First Valid Host-FVH | 210 | 80 | 50 | 121 |
Last Valid Host-LVH | 210 | 80 | 50 | 122 |
Broadcast | 210 | 80 | 50 | 123 |
New Network | 210 | 80 | 50 | 124 |
Router 2 & 3 <= 2 hosts (we required only two IP to connect 2 routers)
2 <= 2n – 2
2 <= 22 – 2
2 <= 4 – 2
2 <= 2
Total number of network bits = 32
32 – n = 32 – 2 = 30 (CIDR of Virtual network (R2&R3)
i.e. 210.80.50.124/30
N.S.M = 11111111.11111111.11111111.11111100
= 255.255.255.252
Block Size = 256 – N.S.M
= 256 – 252 = 4
Note: Add this block size in given network so that we can get our new network for Router 3 and 4 (Virtual Network).
so the new network is 210.80.50.128/?
Now find FVH, LVH and Broadcast address
Given Network | 210 | 80 | 50 | 124 |
First Valid Host-FVH | 210 | 80 | 50 | 125 |
Last Valid Host-LVH | 210 | 80 | 50 | 126 |
Broadcast | 210 | 80 | 50 | 127 |
New Network | 210 | 80 | 50 | 128 |
Router 3 & 4 <= 2 hosts (we required only two IP to connect 2 routers)
2 <= 2n – 2
2 <= 22 – 2
2 <= 4 – 2
2 <= 2
Total number of network bits = 32
32 – n = 32 – 2 = 30 (CIDR of Virtual network (R3&R4)
i.e. 210.80.50.128/30
N.S.M = 11111111.11111111.11111111.11111100
= 255.255.255.252
Block Size = 256 – N.S.M
= 256 – 252 = 4
Note: Add this block size in given network so that we can get our new network for Router 5. This network can be used in future.
so the new network is 210.80.50.132/?
Now find FVH, LVH and Broadcast address
Given Network | 210 | 80 | 50 | 128 |
First Valid Host-FVH | 210 | 80 | 50 | 129 |
Last Valid Host-LVH | 210 | 80 | 50 | 130 |
Broadcast | 210 | 80 | 50 | 131 |
New Network | 210 | 80 | 50 | 132 |
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Basic Configuration on Router 1
Router>enable Router#configure terminal Router(config)#hostname R1 R1(config)#interface fastEthernet 0/0 R1(config-if)#ip address 210.80.50.1 255.255.255.192 R1(config-if)#no shutdown R1(config-if)#exit R1(config)#interface serial 0/0/0 R1(config-if)#ip address 210.80.50.121 255.255.255.252 R1(config-if)#clock rate 64000 R1(config-if)#no shutdown R1(config-if)#exit R1(config)#exit R1#write |
Basic Configuration on Router 2
Router>enable Router#configure terminal Router(config)#hostname R2 R2(config)#interface fastEthernet 0/0 R2(config-if)#ip address 210.80.50.65 255.255.255.224 R2(config-if)#no shutdown R2(config-if)#exit R2(config)#interface serial 0/1/0 R2(config-if)#ip address 210.80.50.122 255.255.255.252 R2(config-if)#no shutdown R2(config-if)#exit R2(config)#interface serial 0/0/0 R2(config-if)#ip address 210.80.50.125 255.255.255.252 R2(config-if)#clock rate 64000 R2(config-if)#no shutdown R2(config-if)#exit R2(config)#exit R2#write |
Basic Configuration on Router 3
Router>enable Router#configure terminal Router(config)#hostname R3 R3(config)#interface fastEthernet 0/0 R3(config-if)#ip address 210.80.50.93 255.255.255.240 R3(config-if)#no shutdown R3(config-if)#exit R3(config)#interface serial 0/1/0 R3(config-if)#ip address 210.80.50.126 255.255.255.252 R3(config-if)#no shutdown R3(config-if)#exit R3(config)#interface serial 0/0/0 R3(config-if)#ip address 210.80.50.129 255.255.255.252 R3(config-if)#clock rate 64000 R3(config-if)#no shutdown R3(config-if)#exit R3(config)#exit R3#write |
Basic Configuration on Router 4
Router>enable Router#configure terminal Router(config)#hostname R4 R4(config)#interface fastEthernet 0/0 R4(config-if)#ip address 210.80.50.109 255.255.255.248 R4(config-if)#no shutdown R4(config-if)#exit R4(config)#interface serial 0/1/0 R4(config-if)#ip address 210.80.50.130 255.255.255.252 R4(config-if)#no shutdown R4(config-if)#exit R4(config)#exit R4#write |
RIP Configuration on Router 1
R1>enable R1#show ip route connected C 210.80.50.0/26 is directly connected, FastEthernet0/0 C 210.80.50.120/30 is directly connected, Serial0/0/0 R1#configure terminal R1(config)#router rip R1(config-router)#version 2 R1(config-router)#no auto-summary R1(config-router)#network 210.80.50.0 R1(config-router)#network 210.80.50.120 R1(config-router)#exit R1(config)#exit R1#write |
RIP Configuration on Router 2
R2>enable R2#show ip route connected C 210.80.50.64/27 is directly connected, FastEthernet0/0 C 210.80.50.120/30 is directly connected, Serial0/1/0 C 210.80.50.124/30 is directly connected, Serial0/0/0 R2#configure terminal R2(config)#router rip R2(config-router)#version 2 R2(config-router)#no auto-summary R2(config-router)#network 210.80.50.64 R2(config-router)#network 210.80.50.120 R2(config-router)#network 210.80.50.124 R2(config-router)#exit R2(config)#exit R2#write |
RIP Configuration on Router 3
R3>enable R3#show ip route connected C 210.80.50.96/28 is directly connected, FastEthernet0/0 C 210.80.50.124/30 is directly connected, Serial0/1/0 C 210.80.50.128/30 is directly connected, Serial0/0/0 R3#configure terminal R3(config)#router rip R3(config-router)#version 2 R3(config-router)#no auto-summary R3(config-router)#network 210.80.50.96 R3(config-router)#network 210.80.50.124 R3(config-router)#network 210.80.50.128 R3(config-router)#exit R3(config)#exit R3#write |
RIP Configuration on Router 4
R4>enable R4#show ip route connected C 210.80.50.112/29 is directly connected, FastEthernet0/0 C 210.80.50.128/30 is directly connected, Serial0/1/0 R4#configure terminal R4(config)#router rip R4(config-router)#version 2 R4(config-router)#no auto-summary R4(config-router)#network 210.80.50.112 R4(config-router)#network 210.80.50.128 R4(config-router)#exit R4(config)#exit R4#write |
Verification on Router 1
R1#show ip route 210.80.50.0/24 is variably subnetted, 7 subnets, 5 masks C 210.80.50.0/26 is directly connected, FastEthernet0/0 R 210.80.50.64/27 [120/1] via 210.80.50.122, 00:00:10, Serial0/0/0 R 210.80.50.96/28 [120/2] via 210.80.50.122, 00:00:10, Serial0/0/0 R 210.80.50.112/29 [120/3] via 210.80.50.122, 00:00:10, Serial0/0/0 C 210.80.50.120/30 is directly connected, Serial0/0/0 R 210.80.50.124/30 [120/1] via 210.80.50.122, 00:00:10, Serial0/0/0 R 210.80.50.128/30 [120/2] via 210.80.50.122, 00:00:10, Serial0/0/0 |
Verification on Router 2
R2#show ip route 210.80.50.0/24 is variably subnetted, 7 subnets, 5 masks R 210.80.50.0/26 [120/1] via 210.80.50.121, 00:00:10, Serial0/1/0 C 210.80.50.64/27 is directly connected, FastEthernet0/0 R 210.80.50.96/28 [120/1] via 210.80.50.126, 00:00:18, Serial0/0/0 R 210.80.50.112/29 [120/2] via 210.80.50.126, 00:00:18, Serial0/0/0 C 210.80.50.120/30 is directly connected, Serial0/1/0 C 210.80.50.124/30 is directly connected, Serial0/0/0 R 210.80.50.128/30 [120/1] via 210.80.50.126, 00:00:18, Serial0/0/0 |
Verification on Router 3
R3#show ip route 210.80.50.0/24 is variably subnetted, 7 subnets, 5 masks R 210.80.50.0/26 [120/2] via 210.80.50.125, 00:00:13, Serial0/1/0 R 210.80.50.64/27 [120/1] via 210.80.50.125, 00:00:13, Serial0/1/0 C 210.80.50.96/28 is directly connected, FastEthernet0/0 R 210.80.50.112/29 [120/1] via 210.80.50.130, 00:00:23, Serial0/0/0 R 210.80.50.120/30 [120/1] via 210.80.50.125, 00:00:13, Serial0/1/0 C 210.80.50.124/30 is directly connected, Serial0/1/0 C 210.80.50.128/30 is directly connected, Serial0/0/0 |
Verification on Router 4
R4#show ip route 210.80.50.0/24 is variably subnetted, 7 subnets, 5 masks R 210.80.50.0/26 [120/3] via 210.80.50.129, 00:00:19, Serial0/1/0 R 210.80.50.64/27 [120/2] via 210.80.50.129, 00:00:19, Serial0/1/0 R 210.80.50.96/28 [120/1] via 210.80.50.129, 00:00:19, Serial0/1/0 C 210.80.50.112/29 is directly connected, FastEthernet0/0 R 210.80.50.120/30 [120/2] via 210.80.50.129, 00:00:19, Serial0/1/0 R 210.80.50.124/30 [120/1] via 210.80.50.129, 00:00:19, Serial0/1/0 C 210.80.50.128/30 is directly connected, Serial0/1/0 |