I have a network I inherited with an EOL Sonicwall tz190 , the external IP has been RBLd due to some infected nodes on the LAN.
The ISP has informed me the client has 4 public IP's to use, what I want to do is add one of the unused IP's to the Sonicwall interface and create a rule/policy that will that will force all outbound traffic from the mail server to use the NEW CLEAN IP, and leave the rest of the LAN as is-
so it would be like this;
LAN IP 192.168.0.9 (mail server) outbound traffic via public ip= new.clean.ip
all other lan outbound traffic via public ip= original.tainted.ip
I also am seeking this solution because there are already hundreds of rules, objects policies, etc.. already in place that I would not care to re-do