Configuring a Netscreen 5gt to work with Comcast business class modem
Posted on 2012-03-20
We are currently using cbeyond as a network supplier. We have several fixed ips with them and we are using a 5gt firewall after their network device. Several of the fixed ips are configured to go to different servers in the building using the 5gt firewall and mapped ips.
We have just signed up to use comcast's business class to get faster speeds. We have another 5gt firewall that I want to put after the comcast firewall. Their service also comes with several fixed ips and I want to setup the second 5gt similar to the original 5gt and configure the comcast ips to replace cbeyond ips.
I have a basic knowledge about these devices but this is over my head.
How do I configure the comcast device to send the different ips to the 5gt firewall? It has dhcp and dns stuff that can be turned off and I don't know if I should. I'm not sure if I need to map each of the incoming ips to the new firewall. I am at a loss.
I then am not sure how to go about setting up the 5gt. Once I have the basics setup I don't have any trouble with setting policies and mapping the ips.
Another question is can these two incoming lines be part of the same network? I would like to keep the original 5gt setup for emergencies since we aren't getting rid of the cbeyond network.
Thanks, I hope some one can help.