When a firewall is added manually to Capture Seurity Center (CSC), the firewall acquisition fails on CSC with ‘Network down or Unit cannot be reached’ error as WAN IP used by CSC back-end is not the same as the resolved CSC fully qualified domain name (FQDN).
There is a WAN > WAN rule created on the firewall which allows HTTPS management access to the firewall from CSC. In many cases customer may lock down the access rule to CSC IP only which may prevent firewall acquisition on CSC.
Allow access to following CSC-Management FQDN / IPs based on the CSC location to resolve firewall acquisition issue.
For SanJose Colo:
FQDN: cloudgms.sonicwall.com,
Zero Touch FQDN: cloudtt.global.sonicwall.com
IP: 4.16.47.168
4.16.47.188
For AWS Colo:
FQDN: cscma.sonicwall.com,
Zero Touch FQDN: cscmatt.global.sonicwall.com
IP: 34.211.138.110,
52.37.12.168,
52.89.82.203
52.11.92.114
For AMS Colo:
FQDN: cloudgmsams.sonicwall.com
Zero Touch FQDN: cloudttams.global.sonicwall.com
IP: 213.244.188.168,
213.244.188.188
For AWS-FRA Colo:
FQDN: cscmafra.sonicwall.com
Zero Touch FQDN: cscmafratt.global.sonicwall.com, cscmafratta.global.sonicwall.com
IP: 18.197.234.66,
18.197.234.59
Please refer to How to restrict Admin access to the device.
For other CSC and SonicWall services:
Please refer to What FQDN's and IP's are used by SonicWall products to update their services?