You should be able to blocking outbound access as follows:
TCP port 1863
IP subnet 188.8.131.52 255.255.255.0
That *should* get you going. Keep in mind IM programs are generally very eager to get a connection, and may try other ports, or specific newer versions may be more persistent in getting a connection. You may need to revisit this each time a MSN upgrade comes out. Generally searching Google will get a wealth of information (that's all I did).
BenefitsDocumentationPrerequisiteImage Download LinksLimitationsSupported PlatformsLicense RequirementsTopologyStep-By-Step ConfigurationConfigure Virtual ServiceActivate the virtual service and configure guest IPsConfiguring UTD (Service Plane)Configurin...
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...