Using IPv6 addresses to allow or block communications in Norton Internet Security 4 for Mac

The Norton Firewall Connection Blocking feature in Norton Internet Security 4 for Mac lets you specify a single IP address or a range of IP addresses that are allowed or blocked. You can add IPv4 or IPv6 addresses to a location's Connection Blocking Trust Zones or Block Zones.

If you want to add a range of IPv6 addresses that start with a base address less than 256, make sure that the address you enter cannot be interpreted as an IPv4 address. For example, to specify the range of IPv6 addresses "100:: through 100:ffff:ffff:ffff:ffff:ffff:ffff:ffff" using the "Add all IP addresses on a network" option, you would enter "100::" for the base address and "FFFF::" for the mask. To specify the same range of IPv6 addresses using the "All IP addresses beginning with" option, you would enter "100::" for base address. If you enter "100" (without the colons) as a base address, it will be interpreted as the IPv4 address range "100.0.0.0 through 100.255.255.255".

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DOCID: kb20081215105429EN_EndUserProfile_en_us
Operating System: Mac OS X
Last modified: 10/31/2013