Virtual Private Networks (VPN)
Virtual Private Networks (VPNs) are used to securely connect two private networks together so that
devices can connect from one network to the other using secure channels.
This chapter contains the following topics:
IPsec 307
OpenVPN 372
Generic Routing Encapsulation (GRE) 412
Dynamic Multipoint VPN (DMVPN) 433
L2TP 440
L2TPv3 Ethernet 452
NEMO 458
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