Airport Extreme hardware leaves Macs, PCs vulnerable

The latest Airport Extreme base station--the one with 802.11n support--may render the Macs and PCs on your network vulnerable to outside attack. The problem is in the way that the Airport station handles IPv6 traffic, as Ars Technica explains, "even though in most configurations, the Airport Extreme will act as a simple firewall and reject incoming sessions over IPv4, it lets incoming IPv6 sessions straight through." Since most folks don't actually need IPv6 support, the current recommendation is to simply disable IPv6 gateway functionality.