Routing Information Protocol 2 (RIP2). Study_Group_208 Shrotri Meghana Dhar Aparna Narkar Priyanka Dulam Vasundhara Mondedula Kalyani. Agenda . RIP Overview, History and Versions RIP2 over RIP1 Configuring RIP and RIP commands
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Dulam VasundharaMondedula Kalyani
SOLUTION: Triggered Updates/Split Horizon for Preventing Two-hop Loops
"Split horizon" is a scheme for avoiding problems caused by including routes in updates sent to the router from which they were learned.
Command -- The command field is used to specify the purpose of the datagram.
Version -- The RIP version number. The current version is 2.
Address family identifier -- Indicates what type of address is specified in this particular entry.
Route tag -- Attribute assigned to a route which must be preserved and readvertised with a route. The route tag provides a method of separating internal RIP routes from external RIP routes, which may have been imported from an EGP or another IGP.
IP address -- The destination IP address.
Subnet mask -- Value applied to the IP address to yield the non-host portion of the address. If zero, then no subnet mask has been included for this entry.
Next hop -- Immediate next hop IP address to which packets to the destination specified by this route entry should be forwarded.
Metric -- Represents the total cost of getting a datagram from the host to that destination.RIP 2 Packet Format
Protocol Structure - RIP & and RIP2: Routing Information Protocol
Max pkt size 512
RIPv2 packet with no Authentication of the datagram.
RIPv2 packet with Authentication headerRIPv2 Packet Format (With/Without Authentication Header)
IP Routing table for Router R1 of the datagram.Example and Routing Table Structure
Included in RIP routing table
-Address of (net/subnet/host) destination
-Metric associated with destination
-Address of next hop router
-Recently updated flag
1. Plaintext Authentication Algorithm
1.Keyed Message Digest 5