Are there new VPN solutions that can better satisfy mobile workers that roam between customer and carrier networks?
Notebook users that connect to a business VPN from their home, hotel or customer site tend to do so while stationary — they sit down, connect to a LAN, tunnel into the VPN, do their work, then disconnect. However, mobile workers that carry tablets, smartphones, PDAs and ruggedized notebooks are more likely to need continuous connectivity — doing their job while actively moving from hotel to train to destination. Accommodating the latter requires more than a static VPN tunnel, bound to a single IP network. Truly mobile workers need persistent connectivity that can survive network roaming and the “dead spots” encountered in between. IPsec and SSL VPN tunnels disconnect whenever the VPN client’s IP address changes. When roaming completes quickly, SSL tunnels may resume with little disruption. But traditional VPNs do not handle lengthy loss of connectivity like Mobile VPNs. Vendors such as BirdStep, Columbitech, NetMotion, Radio IP, and Smith Micro offer Mobile VPN products that assign e
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