When IP VPNs came on the scene in the late 1990s IPSec quickly established itself as the standard to provide secure network-layer connectivity over insecure IP networks, typically the Internet.

The article brings up an interesting point about the increased complexity that comes along with many IPSec connections - the more people who wish to establish these VPNs, the more cumbersome it gets due to maintenance and installation procedures. System administrators may be interested in finding out how SSL VPNs are on the rise and can provide an alternative to repeated setups.

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