Question about Redistributing Between Classful and Classless Protocols

Discussion in 'Cisco' started by ws00sw, Jun 28, 2005.

  1. ws00sw

    ws00sw Guest

    Hello all...

    Please is there any other reference (better if there is an rfc) which
    could explain better this...

    When a classful protocol such as RIP v1 advertises redistributed
    routes, it must make assumptions about the subnet mask of the
    redistributed route, since this information is not carried in the
    advertisement. How each route is advertised to other RIP-speaking
    routers depends on how the interfaces on the border router are
    configured.
    If the router has an interface configured for a subnet of the major
    (classful) network of the redistributed route, the route will be
    advertised on only those interfaces that have the same subnet mask as
    the redistributed route. If there are no interfaces with the same
    subnet mask, the route will not be redistributed.
    If the router does not have any interfaces on a subnet of the major
    (classful) network, only the major network is advertised, not the
    subnet being redistributed.

    Regards
     
    ws00sw, Jun 28, 2005
    #1
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