RIPv2: Offset Lists

RIPv2 Offset Lists allow you to add to a route’s metric either before sending an update or for routes received in an update.  The offset list refers to an ACL to match the routes, the router then address the defined offset to any matching routes.

Any routes not matched are unchanged, the offset list also defines which routing updates to examine by referring to a direction (in or out) and optionally an interface.  If interface is not defined all updates for the defined direction are examined.

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