what is difference between RIPv1 and RIPv2?

There are only three main Differences between Rip1 and Rip2

RIP version 1:

In Rip Version 1 use Broadcast and it is Class Full Routing protocol. No Authenticaion Required in Rip Version 1

RIP version 2:

In Rip version 2 use Multicast ( 244.0.0.9) and it is class less routing protocol. Authentication Required in Rip Version 2

Differences between Rip V1 and Rip V2
  • Broadcast
  • Multicast 244.0.0.9
  • Class Full Routing protocol (support FLSM)
  • Class Less Routing Protocol (support VLSM)
  • No Authentication
  • Authentication

Routing Interview Questions

Difference between RIPv1 and RIPv2?

  •  ripv1 is classfull & ripv2 is classless routing protocol.
  • ripv1 does not support authentication ripv2 support authentication.
  • ripv1 forward broadcast where ripv2 forward multicast.Multicast address is 224.0.0.9

 

Significant differences 

Message format:
RIP-1 message format contains a number of “must be zero” fields, these fields are used by RIP-2’s extended functionality. These fields are Routing Domain (2 bytes), Route Tag (2 bytes), Subnet Mask (4 bytes) and Next Hop (4 bytes). The Version field contains a value of 1 for RIP-1 message and 2 for RIP-2.

Routing per Subnet:
RIP-1 supported subnet entries only within the subnetted network. This enforces strict hierarchical routing. RIP-2 allows routing on the subnet outside of the network by passing subnet mask information in parallel with the address. This also allows support of variable length masks within the same network or aggregation of several class-C addresses within one address group.

Authentication:
RIP-1 is not a secure routing protocol. Any host sending packets from UDP port 520 would be regarded a router and trusted by its neighbours. RIP-2 includes an authentication procedure, which specifies that the first entry in a packet replaced by an “authentication segment”. The packet will contain a 32-bit command, an “address family identified” of 0xFFFF, an “authentication type” that identifies the algorithm in use, 16 bytes of authentication data, and then 24 destination-metric pairs.

Routing Domains, Next Hop
RIP-2 supports multiple autonomous systems on the same wire by using a 16-bit “Routing Domain” number. A route identifies whether the destination network of a packet by examining this field. RIP-2 also includes a “Next Hop” field to indicate the best relay hop for the other logical network on the same wire.

Multicast
RIP-1 uses a broadcast address to send routing advertisements to all nodes on the same wire. RIP-2 utilises a class-D address (224.0.0.9) for periodic multicasts. This effectively prevents other non-router hosts on the same wire from receiving routing messages.

Read MORE RIPv1 and RIPv2

 

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