issue the "show idb" command to see how many subinterfaces your router supports. Your diagram certainly looks doable. I don't know if your router can actually handle NATing for 1000 IPs.
A couple points on your diagram. It looks like you have four subnets. You need to move your first network off of the physical interface to a sub-interface. You really shouldn't be using public IP space on your inside network. Does your diagram show your old and new network?
your F0/0 interface will not have an ip address on it. (only the f0/0.1, f0/0.2..etc)
if you use subinterfaces, you only put ip addresses on those.
(likewise, if you do not use subinterfaces, you would put an ip address on F0/0)
you can then enable NAT to provide internet acceess for all of your subnets. you will create a nat pool that all subnets are assigned too and then use an 'ip nat inside source list....overload' command. see the link below for an more NAT info:
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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