11-29-2011 08:34 AM - edited 03-11-2019 02:56 PM
Is it possible to use IP "aliases" on an ASA5505 to use as static NAT public IPs to private IPs? For example, I have int e0/0 connected to my ISP using a /30 subnet and I have my private LAN connected to e0/1 with a /24 subnet. At the moment I can use the one usable IP from the /30 to NAT to the private LAN. The ISP is also routing a /28 subnet to the one public IP of the ASA.
I would like to use some of the /28 IPs for NAT also. Can it be as easy as just adding the NAT commands? I figure I would have to add that subnet to the ASA somehow, no? In other devices (including the SA520) they use a concept called IP aliases whereby you define what additional IPs the device can use in its NAT config. Does the ASA support aliases? Maybe I have to do something with VLANs?
Any and all help will be greatly appreciated.
Thanks,
Diego
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11-29-2011 10:24 AM
As long as the ISP is routing them to you, you can simply use them in your static/nat commands. No other special configuration is required.
11-29-2011 10:24 AM
As long as the ISP is routing them to you, you can simply use them in your static/nat commands. No other special configuration is required.
11-30-2011 05:19 AM
Cool! I will try it and let you know.
Thanks,
Diego
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