Comcast Business Modem

Sorry, we have the static IPs reserved and I have a computer on the modem, but we need to be able to configure the modem to allow us communication from the local LAN to the static IPs.

No worries' user_8d324c. Were you able to go to that link and see if those directions helped?

They did not.  Like I said, we already have the static IPs.  I need to configure the system to allow communication between the local network and the static IPs we have.

 Oh wow, okay thanks for trying. We know how important this is, and want you to know we are here to help ensure you can set up the network successfully. We are a team of experts, and you can count on us to assist. The good thing is that you have most of the work accomplished, so great job.

Review the following links below I found from CC_Daryl, to make sure the basics are covered and link the static IPs to the modem correctly:

Comcast Business Static IP overview: https://business.comcast.com/help-and-support/internet/using-a-static-ip/

Configuring local area network (LAN) IP addressing: https://business.comcast.com/help-and-support/internet/comcast-business-static-ip-local-area-network/

There is also this discussion that you might find useful: https://forums.businesshelp.comcast.com/conversations/equipment/bridge-mode/5fe0a5afc5375f08cd83256a.