Cabletron Systems CyberSWITCH CSX200 Configuration Manual

Also see for CyberSWITCH HSIM-W6: Setup guide User guide User guide Installation guide

Contents

Routing Configuration WindowQuickSET Configuration Guide127Routing Information Protocol OptionsThe following options are available in the Modify RIP panel:Do Not Send — do not send any Routing Information Protocol packets from this interface.Do Not Receive — do not allow any Routing Information Protocol packets to be received by thisinterface.RIP Version 1 — only RIP-1 messages are (sent/received). RIP-1 does not allow subnetaddressing and does not use authentication.RIP-1 Compatible — a RIP-2 mode in which RIP-2 messages are broadcast and multicast. RIP-1messages and unauthenticated RIP-2 messages can be accepted.RIP-2 — allows sending and receiving of RIP-2 messages, authenticated RIP-2 messages, allowssubnet addressing, and IP Multicasting.RIP-1 vs. RIP-2A comparison of the features of RIP-1 and RIP-2 protocols (excerpted from RFC 2453, Copyright,The Internet Society, 1998) follows:RIP-2 is essentially an extension of RIP-1 - it is not a new protocol. It is a superset of theenvironments in which RIP-1 has been traditionally used. It should be noted that RIP-2 is notintended to be a substitute for OSPF (Open Shortest Path First) protocol in large autonomoussystems. The restrictions on autonomous system diameter and complexity which applied to RIP-1also apply to RIP-2.Subnet MasksRIP-2 allows the smaller, simpler, distance-vector protocol to be used in environments whichrequire authentication or the use of variable length subnet masks, but are not of a size orcomplexity which require the use of the larger, more complex link-state OSPF protocol.The original impetus behind the creation of RIP-2 was the desire to include subnet masks in therouting information exchanged by RIP, as this was not included in the original definition of RIP. Aslong as the subnet mask was fixed for a network, and well known by all the nodes on that network,a heuristic could be used to determine if a route was a subnet route or a host route.The inclusion of the subnet mask in RIP-2 effectively creates a 64-bit address which eliminates thenetwork, subnet, and host distinction. Therefore the inclusion of a subnet mask in RIP-2 allows itto be used in an autonomous system which requires precise knowledge of the subnet mask for agiven route, but does not otherwise require OSPF protocol.