Module 7- RIPv2 CCNA potx

1 Module 7- RIPv2 CCNA Exploration 4.0 2 Overview Học viện mạng Bach Khoa - Website: www.bkacad.com 3 RIPv1 Limitations Học viện mạng Bach Khoa - Website: www.bkacad.com 4 Lab Topology • This topology is discontiguous and will not converge because 172.30.0.0/16 is divided by the 209.165.200.0/24. • R2 router has a static summary route to the 192.168.0.0/16 network. For now, understand that this summary route will cause problems with RIPv1 because 192.168.0.0/16 is not a major classful address and includes all of the /24 versions of 192.168.0.0/16. Học viện mạng Bach Khoa - Website: www.bkacad.com 5 RIPv1: Discontiguous Networks • You already know that RIPv1 is a classful routing protocol. • As you can see in the RIPv1 message format, It does not include the subnet masks in its routing updates. • Therefore, RIPv1 cannot support discontiguous networks, VLSM, or Classless Inter-Domain Routing (CIDR) supernets. Học viện mạng Bach Khoa - Website: www.bkacad.com 6 RIPv1: Discontiguous Networks • Because the subnet mask is not included in the update, RIPv1 and other classful routing protocols must summarize networks at major network boundaries. Học viện mạng Bach Khoa - Website: www.bkacad.com 7 Configuring RIPv2 Học viện mạng Bach Khoa - Website: www.bkacad.com 8 Enabling and Verifying RIPv2 • The Next Hop address is used to identify a better next-hop address - if one exists - than the address of the sending router. • If the field is set to all zeros (0.0.0.0), the address of the sending router is the best next-hop address. Học viện mạng Bach Khoa - Website: www.bkacad.com 9 Enabling and Verifying RIPv2 Học viện mạng Bach Khoa - Website: www.bkacad.com 10 Auto-summary and RIPv2 • By default, RIPv2 automatically summarizes networks at major network boundaries, just like RIPv1. Học viện mạng Bach Khoa - Website: www.bkacad.com [...]... Học viện mạng Bach Khoa - Website: www.bkacad.com 13 Disabling Auto-summay in RIPv2 Học viện mạng Bach Khoa - Website: www.bkacad.com 14 Verifying RIPv2 Updates Học viện mạng Bach Khoa - Website: www.bkacad.com 15 Verifying RIPv2 Updates Học viện mạng Bach Khoa - Website: www.bkacad.com 16 Compatibility with RIP v1 NewYork RIPv2 • • • Interface FastEthernet0/0 is configured to send and receive RIP v1...Auto-summary and RIPv2 Học viện mạng Bach Khoa - Website: www.bkacad.com 11 Auto-summary and RIPv2 Học viện mạng Bach Khoa - Website: www.bkacad.com 12 Auto-summary and RIPv2 • • Remember, the 192.168.0.0/16 route could not be distributed with RIPv1 because the subnet mask was less than the classful... routes from this source routing protocol to the current routing protocol 27 Verifying and Troubleshooting RIPv2 Học viện mạng Bach Khoa - Website: www.bkacad.com 28 Verification and Troubleshooting Commands • • There are several ways to verify and troubleshoot RIPv2 Many of the same commands used for RIPv2 can be used to verify and troubleshoot other routing protocols It is always best to begin with the... www.bkacad.com s0 22 Lo1 ` 172.30.200.16/28 SantaCruz2 Lo0 1 e0 1 172.30.110.0/24 172.30.100.0/24 18 VLSM and CIDR Học viện mạng Bach Khoa - Website: www.bkacad.com 19 RIPv2 and VLSM Học viện mạng Bach Khoa - Website: www.bkacad.com 20 RIPv2 and CIDR • One of the goals of Classless Inter-Domain Routing (CIDR) as stated by RFC 1519 is "to provide a mechanism for the aggregation of routing information."... classful networks that is addressed as a single network Học viện mạng Bach Khoa - Website: www.bkacad.com 21 RIPv2 and CIDR Học viện mạng Bach Khoa - Website: www.bkacad.com 22 Authentication • • • • Whatever the reason, it is good practice to authenticate routing information transmitted between routers RIPv2, EIGRP, OSPF, IS-IS, and BGP can be configured to authenticate routing information This practice... 172.25.150.225 225.255.255.240 router rip version 2 network 172.25.0.0 network 192.168.50.0 Học viện mạng Bach Khoa - Website: www.bkacad.com 17 Propagating a default Routes in RIPv2 • Two steps to propagate default route into RIPv2: • Create default route in propagator • Implement default-information originate in router mode ISP router rip redistribute static network 10.0.0.0 network 192.168.4.0 version... authentication may be necessary to communicate with some RIP v2 implementations, for security concerns use the more secure MD5 authentication whenever possible Học viện mạng Bach Khoa - Website: www.bkacad.com 24 RIPv2 redistribution • Planning Redistribution • • Locate the boundary router between two routing processes Determine which routing process is the core or backbone process Determine which routing process . 1 Module 7- RIPv2 CCNA Exploration 4.0 2 Overview Học viện mạng Bach Khoa - Website: www.bkacad.com 3 RIPv1. Website: www.bkacad.com 9 Enabling and Verifying RIPv2 Học viện mạng Bach Khoa - Website: www.bkacad.com 10 Auto-summary and RIPv2 • By default, RIPv2 automatically summarizes networks at major. www.bkacad.com 11 Auto-summary and RIPv2 Học viện mạng Bach Khoa - Website: www.bkacad.com 12 Auto-summary and RIPv2 Học viện mạng Bach Khoa - Website: www.bkacad.com 13 Auto-summary and RIPv2 • Remember, the