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Note: The IPsec feature is implemented as a means of establishing IPsec tunnels in support of the Branch Survivability feature. IPsec tunneling is NOT a stand-alone feature at this time. |
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The diagram depicts a VPN connection (IPsec tunnel) between the local and remote subnets as site-to-site tunneling on SBC gateways. Traffic between the trusted subnet networks is tunneled to fully encapsulate the packets on its way across an untrusted network, protected by both encryption and authentication.
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