I have a design for a client which involves 5 interfaces on a Cisco 2600 using the IP Firewall IOS. 2 are ISP connections E1 and E2, one is an DMZ E3 and two are internal networks E4 and E5.
E4 uses E2 to access the internet.
E5 and E3 use E1 to access the internet and in E3's case for the internet to access its servers.
Can I define multiple NAT pools so that E4 uses a pool which the ISP for E2 has provided and likewise for E1 and E5?
Any thoughts appreciated. I also have a 255.255.255.240 subnet allocated to me in totality. One end is for ISP's device with subnet zero ip address used as their interface with the 240 mask on it. I thought the best thing was to put a 248 mask on the end of the range so I have 8 contigous devices for the DMZ and then use two blocks of four for the NAT overloading and our end of the router.
So if I had 10.10.10.48 /28 where 10.10.10.48 is the ISP router and 10.10.10.49 /30 is our end. DMZ is going to be 10.10.10.56 /29. IP NAT pool is going to be 10.10.10.52 /30.
Thanks for any advice. Can't seem to find anything on the setup of multiple pools for seperate interfaces on a single router.
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