OSEC

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From: Manav Bhatia (manavSAMSUNG.CO.KR)
Date: Thu Aug 23 2001 - 08:28:25 CDT

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    Hi Alex,
    Forwarding address is used to optimze the final hop. If the advertising AS is advertising a destination that can more optimally be reached by a different router on the same LAN, then the advertising AS puts that router's address into this field.Otherwise it leaves the field as 0.0.0.0, indicating
    that packets for the external destination should be forwarded to the advertising OSPF router.

    Without this field, in certain topologies, a route may traverse an extra LAN hop.

    Hope it helps.

    Manav Bhatia

    ----- Original Message -----
    From: <alexlerinYAHOO.COM>
    To: <OSPFDISCUSS.MICROSOFT.COM>
    Sent: Thursday, August 16, 2001 4:56 PM
    Subject: About ASExternalLSA

    > Hi..
    > I have a basic doubt about ASExternalLSA.
    > This LSA contain a field called forwarding address.
    > What is this ...
    > Can this field be a Router ,other than ASBR or is a
    > Network..
    > If this can be a network what will be the field
    > indicate(DestinationID or linkstateid of
    > networkLSA)..?
    > Please clarfy my doubt..
    >
    >
    > Thanks
    > Alex
    >
    >
    >
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