"A SIG provides safe access to the internet anywhere users go, even when they are off the VPN," Cisco said in a blog post. "Before you connect to any destination, a SIG acts as your secure onramp to the internet and provides the first line of defense and inspection. Regardless of where users are located or what they’re trying to connect to, traffic goes through the SIG first."
If this new way of thinking of enterprise security catches on it might even help speed up the adoption of IPv6, which is held back partly by fears that it could punch holes through network perimeters and because many companies still have old firewalls and equipment that don't have proper support for it.
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