Greetings,
I am purchasing a Sonicwall firewall and plan to install it between my SBS 2003 box and the internet. Currently, the SBS box is multihomed and uses ISA 2004. How do I go about configuring the firewall and uninstalling ISA 2004? (I want to free up some resources on the SBS box and don’t think both a firewall and ISA are necessary) Here’s what i have in mind, please tell me if I’m close or way off:
1.Configure sonicwall with public IP and DNS IPs from my ISP and test internet connectivity
2. Configure sonicwall for allow/deny rules that currently exist on ISA 2004
2.Re-run CEICW wizard and confiure for single NIC and make default gateway the private IP of the sonicwall LAN interface
3.Disable public NIC on SBS box
4.Disable ISA 2004
What’s peculiar is that on the WAN NIC of the SBS box the preferred DNS is the LAN IP of the SBS box (192.x.x.x) – and it works. Shouldn’t the DNS entries be those of my ISP?
Thanks in advance!!