8 Replies Latest reply: Feb 21, 2014 5:51 AM by Gus RSS

    Fundamentals of RIP - Study Session 4 of 12 Discussion Thread

    Brett Lovins, Community Manager

      This will be the official post-seminar discussion thread for the the CCNA Routing and Switching Study Session #4: Fundamentals of RIP. This study session starts at 10 am Pacific today (February 17th). There are a total of 12 sessions planned. Next week's session (Feb 24th at 10 am) is on the Fundamentals of EIGRP.


      Here's a link to the sessions - register for upcoming sessions or review recordings of previous sessions:


      CCNA Routing and Switching Study Sessions with André Laurent (3x CCIE and CCDE)






      André sent along the CLI and topologies. Here they are:





      RIP Concepts



      • Dynamic Routing is easier to manage than static routing and better accommodates route failover scenarios regardless of whether leveraging max-paths ECMP configuration or route failover with max-paths set to 1.
      • The most basic RIP configuration start with first enabling RIP and then by specifying the network statement along with the major net network address for the interfaces that will be participating in both sending and receiving updates.
      • The passive-interface command can be used to prevent interfaces from sending updates, but this will not prevent learning updates on these interfaces.
      • To prevent a router from installing updates into the routing table after being learned on a specific interfaces that have been enabled by the broad addressing included with the network statement, you will want to leverage the distribute-list command along with an ACL (remember that deny is deny and permit is permit in terms of allowing routes to be inserted within the routing table that match an incoming distribute-list).
      • One can influence path selection by adjusting distance  using the distance command(self impacting) or metric using offset-list in or out (self and/or neighbors).
      • RIP Auto-Summarizes across major network boundaries by default. Enable version 2 and auto summarization to address this issue.
      • RIPv2 adds routing authentication capability to secure environment from learning bogus routes from rogue devices and to also prevent devices from sharing confidential topology information with non authorized devices





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