Solved

Networking - RIP v1/v2

Posted on 2014-03-12
4
508 Views
Last Modified: 2014-03-16
Hi,

1. Why is max. hop count of RIP v1 is 15. Where is this limitation coming from.

2. Are RIPv1 & RIPv2 interoperable. Can RIP v1 understand RIP v2 updates as one is broadcast and the other is multicast.

Please help....thanks !
0
Comment
Question by:msatyav10
  • 2
4 Comments
 
LVL 11

Accepted Solution

by:
Miftaul earned 500 total points
ID: 39923150
Rip is a distance vector protocol and relies heavily on hop counts to limit routing loop. Its the design requirement to max to 16 hop. If a route is more than 15 hop means that route is too far to be good enough. It could've been 14 or 17 hops, but rember the binary 4 bits, it gives value 16. Rip uses 4 bits to calculate its matric hop count.

If a rip1 router is communicating with rip2, it will not resort to v1.
We can configure a ripv1 router to send v2 update per interface using  ip rip send ver 2 on interface config mode.
0
 
LVL 50

Expert Comment

by:Don Johnston
ID: 39923379
1) the low hop count is an early routing loop prevention method. That way if a bad route got propagated it would discarded after 15 hops. Later mechanisms such as split-horizons and poison-reverse have made that unnecessary.  As evidenced by IGRP's 255 max hop count.

2) RIP v2 routers can understand v1 updates. They can also be configured send v1 & v2 updates.
0
 

Author Comment

by:msatyav10
ID: 39923982
I am little confused. I read RIPv2 is backward compatible with RIPv1. What does this mean. RIPv2 sends a multicast packet and RIPv1 can process it and is it vice-versa. How exactly will they interoperate. Please help !
0
 
LVL 11

Expert Comment

by:Miftaul
ID: 39924184
Could you read this Link
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

We've been using the Cisco/Linksys RV042 for years as: - an internet Gateway - a site-to-site VPN device - a leased line site-to-site subnet-to-subnet interface (And, here I'm assuming that any RV0xx behaves the same way as an RV042.  So that's …
The Cisco RV042 router is a popular small network interfacing device that is often used as an internet gateway. Network administrators need to get at the management interface to make settings, change passwords, etc. This access is generally done usi…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

932 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now