Dynamic Routing RIP

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Dynamic Routing RIP

  1. 1. 1
  2. 2. Dynamic Routing Advantages of Dynamic over static : • There is no need to know the destination networks. • Need to advertise the directly connected networks. • Updates the topology changes dynamically. • Administrative work is reduced • Used for large organizations. 2
  3. 3. Types of Dynamic Routing Protocols • Distance Vector Protocol • Link State Protocol • Hybrid Protocol 3
  4. 4. Distance Vector Protocol • Works with Bellman Ford algorithm • Periodic updates • Classful routing protocol • Full Routing tables are exchanged • Updates are through broadcast • Also known as “Routing By Rumor” • Example: RIP, IGRP 4
  5. 5. Link State Protocol • Works with Dijkstra algorithm • Link state updates • Classless routing protocol • Missing routes are exchanged • Updates are through multicast • Also known as “ Routing by Intelligence” • Example : OSPF, IS-IS 5
  6. 6. Hybrid Protocol • Works with DUAL algorithm • Link state updates • Classless routing protocol • Missing routes are exchanged • Updates are through multicast • Also known as “ Routing by Intelligence” • Example : EIGRP 6
  7. 7. Routing Information Protocol • Open Standard Protocol • Classful routing protocol • Updates are broadcasted via 255.255.255.255 • Administrative distance is 120 • Metric : Hop count Max Hop counts : 15 Max routers : 16 • Load Balancing of 4 equal paths • Used for small organizations 7
  8. 8. Rip Timers • Update timer : 30 sec – Time between consecutive updates • Invalid timer : 180 sec – Time a router waits to hear updates – The route is marked unreachable if there is no update during this interval. • Flush timer : 240 sec – Time before the invalid route is purged from the routing table • Holddown timer : 180sec – Specifies the amount of time for which the 8 information about poorer routes are ignored.
  9. 9. RIP - Network Diagram 10.0.0.1/8 S0 HYD 11.0.0.1/8 S0 S1 10.0.0.2/8 E0 192.168.1.150/24 LAN - 192.168.1.0/24 CHE S1 11.0.0.2/8 E0 192.168.2.150/24 LAN - 192.168.2.0/24 BAN E0 192.168.3.150/2 LAN - 192.168.3.0/24 9
  10. 10. Disadvantages of RIP • More Bandwidth utilization • Doesn’t consider the bandwidth, works only with hop counts • Slow convergence • Formation of Routing loops 10
  11. 11. 11
  12. 12. Microsoft Windows 2000 [Version 5.00.2195] (C) Copyright 1985-2000 Microsoft Corp. C:> telnet 192.168.1.150 Connecting ..... ================================ Welcome to Hyderabad Router ================================ User Access Verification password : **** Directly Connected Networks on Directly Connected Networks on Hyderabad> enable HYDERABAD Router password : **** HYDERABAD Router Hyderabad# configure terminal 192.168.1.0 192.168.1.0 Enter configuration commands, one per line. End with CNTL/Z. 10.0.0.0 10.0.0.0 Hyderabad(config)# interface serial 0 Hyderabad(config-if)# ip address 10.0.0.1 255.0.0.0 Hyderabad(config-if)# no shut Hyderabad(config-if)# clockrate 64000 Hyderabad(config-if)# encapsulation hdlc Hyderabad(config-if)# exit Hyderabad(config)# 12 Diagram
  13. 13. Hyderabad(config)# no ip routing Hyderabad(config)# ip routing Hyderabad(config)# router rip Hyderabad(config-router)# network 192.168.1.0 Hyderabad(config-router)# network 10.0.0.0 Hyderabad(config-router)# Configuring RIP Configuring RIP Router(config)# router rip Router(config)# router rip Router(config-router)# network <Network ID> Router(config-router)# network <Network ID> 13 Diagram
  14. 14. Hyderabad(config)# no ip routing Hyderabad(config)# ip routing Hyderabad(config)# router rip Hyderabad(config-router)# network 192.168.1.0 Hyderabad(config-router)# network 10.0.0.0 Hyderabad(config-router)# ^Z Hyderabad# show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i- IS-IS, L1-IS-IS level-1, L2-IS-IS level-2,*- candidate default U - per-user static route, o - ODR Gateway of last resort is not set C 10.0.0.0/8 is directly connected, Serial0 R 11.0.0.0/8 [120/1] via 10.0.0.2, 00:00:25, Serial0 C 192.168.1.0/24 is directly connected, Ethernet0 R 192.168.2.0/24 [120/1]nothingbut via of Rip 120 is Metric 10.0.0.2, 00:00:25, Serial0 Metricof Rip 120 isnothing but R – for RIP routes – for RIP routes Administrative Distance 00:00:25, Serial0 R R 192.168.3.0/24 [120/2] Hop Count via Distance Administrative 10.0.0.2, Hop Count Hyderabad# Diagram 14
  15. 15. Hyderabad# show ip protocols Routing Protocol is "rip" Sending updates every 30 seconds, next due in 13 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Redistributing: rip Default version control: send version 1, receive any version Interface Send Recv Key-chain Ethernet0 1 1 2 Serial0 1 1 2 Routing for Networks: 192.168.1.0 10.0.0.0 Routing Information Sources: Gateway Distance Last Update 10.0.0.2 120 00:00:00 Distance: (default is 120) Hyderabad# 15 Diagram
  16. 16. Microsoft Windows 2000 [Version 5.00.2195] (C) Copyright 1985-2000 Microsoft Corp. C:> telnet 192.168.2.150 Connecting ..... ================================ Welcome to Chennai Router ================================ User Access Verification password : **** Directly Connected Networks on Chennai> enable Directly Connected Networks on CHENNAI Router password : **** CHENNAI Router Chennai# configure terminal 192.168.2.0 192.168.2.0 Enter configuration commands, one per line. End with CNTL/Z. 10.0.0.0 10.0.0.0 Chennai(config)# interface serial 1 11.0.0.0 11.0.0.0 Chennai(config-if)# ip address 10.0.0.2 255.0.0.0 Chennai(config-if)# no shut Chennai(config-if)# encapsulation hdlc Chennai(config-if)# interface serial 0 Chennai(config-if)# ip address 11.0.0.1 255.0.0.0 Chennai(config-if)# no shut Chennai(config-if)# encapsulation hdlc Diagram 16
  17. 17. Chennai(config)# no ip routing Chennai(config)# ip routing Chennai(config)# router rip Chennai(config-router)# network 192.168.2.0 Chennai(config-router)# network 10.0.0.0 Chennai(config-router)# network 11.0.0.0 Configuring RIP Configuring RIP Chennai(config-router)# Router(config)# router rip Router(config)# router rip Router(config-router)# network <Network ID> Router(config-router)# network <Network ID> 17 Diagram
  18. 18. Chennai(config)# no ip routing Chennai(config)# ip routing Chennai(config)# router rip Chennai(config-router)# network 192.168.2.0 Chennai(config-router)# network 10.0.0.0 Chennai(config-router)# network 11.0.0.0 ^ Chennai(config-router)# Z Chennai# show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i- IS-IS, L1-IS-IS level-1, L2-IS-IS level-2,*- candidate default U - per-user static route, o - ODR Gateway of last resort is not set C 10.0.0.0/8 is directly connected, Serial1 C 11.0.0.0/8 is directly connected, Serial0 R 192.168.1.0/24 [120/1] via 10.0.0.1, 00:00:01, Serial1 C 192.168.2.0/24 is directly connected, Ethernet0 R 192.168.3.0/24 [120/1] viaMetricofbut 00:00:12, Serial0 11.0.0.2, 120 is Metric ofbut 120 isnothing Rip nothing Rip R – for RIP routes Diagram R – for Chennai# RIP routes Administrative Count Hop Count AdministrativeDistance Distance 18 Hop
  19. 19. Chennai# show ip protocols Routing Protocol is "rip" Sending updates every 30 seconds, next due in 5 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Redistributing: rip Default version control: send version 1, receive any version Interface Send Recv Key-chain Ethernet0 1 1 2 Serial0 1 1 2 Serial1 1 1 2 Routing for Networks: 192.168.2.0 10.0.0.0 11.0.0.0 Routing Information Sources: Gateway Distance Last Update 11.0.0.2 120 00:00:23 10.0.0.1 120 00:00:03 Distance: (default is 120) Chennai# Diagram 19
  20. 20. Microsoft Windows 2000 [Version 5.00.2195] (C) Copyright 1985-2000 Microsoft Corp. C:> telnet 192.168.3.150 Connecting ..... ================================ Welcome to Banglore Router ================================ User Access Verification password : **** Directly Connected Networks on Banglore> enableDirectly Connected Networks on Banglore Router password : **** Banglore Router Banglore# configure terminal 192.168.3.0 192.168.3.0 Enter configuration commands, one per line. End with CNTL/Z. 11.0.0.0 11.0.0.0 Banglore(config)# interface serial 1 Banglore(config-if)# ip address 11.0.0.2 255.0.0.0 Banglore(config-if)# no shut Banglore(config-if)# clockrate 64000 Banglore(config-if)# encapsulation hdlc Banglore(config-if)# exit Banglore(config)# 20 Diagram
  21. 21. Banglore(config)# no ip routing Banglore(config)# ip routing Banglore(config)# router rip Banglore(config-router)# network 192.168.3.0 Banglore(config-router)# network 11.0.0.0 Banglore(config-router)# Configuring RIP Configuring RIP Router(config)# router rip Router(config)# router rip Router(config-router)# network <Network ID> Router(config-router)# network <Network ID> 21 Diagram
  22. 22. Banglore(config)# no ip routing Banglore(config)# ip routing Banglore(config)# router rip Banglore(config-router)# network 192.168.3.0 Banglore(config-router)# network 11.0.0.0 Banglore(config-router)# ^Z Banglore# show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i- IS-IS, L1-IS-IS level-1, L2-IS-IS level-2,*- candidate default U - per-user static route, o - ODR Gateway of last resort is not set R 10.0.0.0/8 [120/1] via 11.0.0.1, 00:00:04, Serial1 C 11.0.0.0/8 is directly connected, Serial1 R 192.168.1.0/24 [120/2] via 11.0.0.1, 00:00:04, Serial1 120 is Metric ofbut Metric of Rip 120 isnothing Rip R – for RIP routes [120/1]nothing but – for RIP routes R R 192.168.2.0/24 via Distance Administrative Count Hop 11.0.0.1, AdministrativeDistance 00:00:04, Serial1 Hop Count C 192.168.3.0/24 is directly connected, Ethernet0 Banglore# 22 Diagram
  23. 23. Banglore# show ip protocols Routing Protocol is "rip" Sending updates every 30 seconds, next due in 15 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Redistributing: rip Default version control: send version 1, receive any version Interface Send Recv Key-chain Ethernet0 1 1 2 Serial1 1 1 2 Routing for Networks: 192.168.3.0 11.0.0.0 12.0.0.0 Routing Information Sources: Gateway Distance Last Update 11.0.0.1 120 00:00:06 Distance: (default is 120) Banglore# 23 Diagram
  24. 24. Hyderabad# ping 192.168.3.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.3.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms Hyderabad# ping 192.168.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms Hyderabad# 24 Diagram
  25. 25. Chennai# ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms Chennai# ping 192.168.3.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.3.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms Chennai# 25 Diagram
  26. 26. Banglore# ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms Banglore# ping 192.168.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms Banglore# 26 Diagram

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