SNAT question

[Felipe <fflores@xxxxxxxxxxxxxxx>]

It's necessary to set up phisically the public address used in SNAT rule ?
For this rule:

iptables -t nat -A POSTROUTING -s 172.21.0.0/16 -j SNAT --to 200.110.2.181

For that rule, its necessay set up phisically the IP 200.110.2.181 over the interface ?

Thanks for your response


Felipe