As of the June 2017 release of TIBCO Scribe® Online, IPv6 IP Addresses are accepted when the full range of IPv4 addresses is entered in the TIBCO Scribe® Online Security Settings dialog. (0.0.0.0 to 255.255.255.255). (S39378)
See the following in the TIBCO Scribe® Online Help for information on accessing and modifying Security Settings:
Setting Security Options