NAT and secondary Internet access
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Q:
We have a current BorderManager setup with one public and one private interface. We have several secondary IP addresses that are mapped to internal hosts with static NAT. Dynamic NAT is disabled and the internal users
access the Internet via proxy.
In this configuration Internet access is relatively slow (we use a shared connection). Our ISP can give us a dedicated connection for a specific IP address. So I want to enable a small group of our users to access the Internet via this public IP address. Is there any way of doing this without setting up a second NAT server?
A:
Not really. In order to use that Internet connection you would have to set the default route to it, and that would affect all the traffic on the old connection as well.
It's easier to simply set up another server and point some users to it. You can control their usage with access rules for proxy. NAT would be much harder to control for outbound use, especially if you had multiple internal subnets.
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