You can use CSC in ISP1 and run BGP directly between Customer and ISP2. On Mon, Aug 10, 2009 at 11:59, jack daniels<jckdaniels12 at gmail.com> wrote: > Hi , > > Just to be more specific on the solution requirement - > > Customer---ISP1---ISP2---Internet > > > Internet should not see ISP1 AS number . I 'm looking for L3 solution.