
Configuring IP Services
3-2
The Bay Networks implementation of RIP offers features of RIP Version 1 and
RIP Version 2. Combined features include
• RIP Version 2 with selectable no-aggregation mode or aggregation mode
• Multicast addressing for RIP Version 2 updates
• Configurable timers
• Update authentication
• Support for subnet masks
• Triggered updates
Sending RIP Updates
When you configure RIP on the router, you can specify whether RIP sends
Version 1 or Version 2 updates. You can also specify whether RIP sends split
horizon, poisoned reverse, or triggered updates.
Selecting the Sending Mode
You can specify whether RIP sends updates in RIP Version 1 mode, RIP Version 2
mode with no aggregation, or RIP Version 2 mode with aggregation.
• In RIP Version 1 mode, RIP generates Version 1 updates only, using the
broadcast address as specified in RFC 1058. RIP aggregates subnet
information.
• In RIP Version 2 mode, RIP generates Version 2 updates, using the multicast
address 224.0.0.9 as specified in the RIP Version 2 RFC, 1388. RIP does not
aggregate subnet information.
• In RIP Version 2 mode with aggregation, RIP generates RIP Version 2
updates, using the multicast address, and performs aggregation of subnets into
a natural network advertisement on interfaces belonging to another network.
In both Version 2 modes, RIP checks the authentication on all received updates
(see “Enabling RIP2 Authentication” on page 3-6).
For instructions on using Site Manager to specify the RIP update mode, see the RIP
Mode parameter on page 3-14.
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