What does this command mean?
ip route 0.0.0.0 0.0.0.0 192.168.100.1
I have 9 other ip routes in my router configuration but my understanding is that when data packets get to the router and if they don't match any of the other 9 ip routes, that they will be routed to 192.168.100.1. Is that correct?
Yes you are absolutely right!!
This route is called as a default route. Router will check its routing table and when it does not find any matching entry for a particular destination it will fwd that packet to the default route.
In your case router will fwd data packet to 192.168.100.1 if there is no matching entry in routing table or that particular destination.
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