Configuration Examples for IPSec

Communication Between LANs Through an IPSec Tunnel

This section describes communication between LANs through an IPSec tunnel.

Communication Between LANs Through a GRE over IPSec Tunnel

If a dynamic routing protocol (such as OSPF or RIP) runs inside two LANs, a GRE over IPSec tunnel, not a simple IPSec tunnel, must be established between the egress gateways of the LANs for secure communication.

Application of IPSec in a NAT Scenario

This section describes the configuration if NAT devices are deployed on IPSec tunnel forwarding paths.

Service Isolation by Combining IPSec and VPN Multi-instance

This section describes the isolation of user services by combining IPSec and VPN multi-instance.

Application of IPSec in a Hot Standby Scenario

This section describes the application of IPSec in a Hot Standby scenario.

Application of IPSec in a Multi-link Scenario

This section describes the application of IPSec in a multi-link scenario.

Application of IPSec on Wireless Networks

This section describes the application of IPSec on wireless networks.

Application of IPSec in Virtual System

This section describes the application of IPSec in Virtual System.

Application of IPSec in Other Scenarios

This section describes the application of IPSec in such scenarios as transparent access and IKEv2 certification authentication.