Although he acknowledges that businesses have yet to embrace IPv6, security guru Scott Hogg says that doesn't mean IT executives can't ignore the security problems that the next generation Internet protocol can present. After all, he notes, operating systems such as Microsoft Vista and Linux are already IPv6 capable and thus any networks that use them might be handling IPv6 traffic without their operators' knowledge. In this question and answer session, Hogg, who is also the coauthor of the Cisco-approved IPv6 Security guidebook and who writes regularly for Network World's Cisco Subnet blog, talks about steps that network operators can take to ensure that they don't inadvertently let their network get compromised by stealth IPv6 packets.

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