I have network behind core switch is 192.168.10.0/25
and my routing to corporate network is BGP routing. I published my network at BGP as 192.168.10.0/24 because we have other subnet that also using 192.168.10.241/28 that doing routing internally.
at Corp router, they only allowed our subnet advertise as /24.
all my server which is using /25 subnet is not able to reach the next hop at Corp. which according to them they can't find my subnet advertised at their route table.
if to ask them change to accept my subnet which is /25 required a lot of process and paper work and question that to answer to justify it. the flow may take longer.
i understand that auto summarization may help... but i seem can't find the command in my switch.
By the way, I'm using Dell Force10 S4810. all this works perfectly until the host subnet been requested to change to /25