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Overlapping subnet question

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mattbarkerlfc

Technical User
Jul 5, 2014
14
GB
Hi,

I'm after a bit of clarification if possible.

Can I route to both 10.1.0.0/16 & 10.1.160.0/27 networks that exist behind a single 3750 at a remote site? Network 10.1.0.0/16 is in OSPF area 0, but 10.1.160.0/27 will be a static route injected via OSPF (sat behind a checkpoint firewall).

I assume that this won't be a problem as the shortest mask should always win? Would I need to perform some kind of route summarisation?

I did try this but on the Checkpoint firewall it wouldn't allow me to define interfaces in both networks as they say they overlap?

Thanks,

Matt.
 
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