Currently, Syslog-ng Store Box (SSB) uses hardcoded IP Addresses for the High Availability (HA) interfaces:
18.104.22.168 and 22.214.171.124
Unfortunately, these addresses are known public IP addresses from China which is a concern for United States Federal-based customers.
A change request has been submitted with the Syslog-ng Store Box (SSB) product team to change the HA IP Addresses used.
There is no workaround to change these addresses at this time.
*NOTE* These IP Addresses are not routable IP Addresses and should therefore pose no security risks.