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Does FreeBSD support NAT or Masquerading?

April 26, 2017FreeBSD Masquerading NAT support

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Does FreeBSD support NAT or Masquerading?

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Yes. If you want to use NAT over a user PPP connection, please see the Handbook entry on user PPP. If you want to use NAT over some other sort of network connection, please look at the natd section of the Handbook.

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If you have a local subnet (one or more local machines), but have been allocated only a single IP number from your Internet provider (or even if you receive a dynamic IP number), you may want to look at the natd(8) program. natd(8) allows you to connect an entire subnet to the Internet using only a single IP number. The ppp(8) program has similar functionality built in via the -nat switch. The alias library ( libalias(3)) is used in both cases.