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![Configuring a Virtual Tunnel Interface with IP Security [IPSec Negotiation/IKE Protocols] - Cisco Systems](https://www.cisco.com/en/US/technologies/tk583/tk372/images/0900aecd8067f1d6_null_null_null_05_11_05-1.jpg "Configuring a Virtual Tunnel Interface with IP Security [IPSec Negotiation/IKE Protocols] - Cisco Systems")
Configuring a Virtual Tunnel Interface with IP Security [IPSec Negotiation/IKE Protocols] - Cisco Systems
![Gateway Whiz]Example for Establishing an IPSec Tunnel Between the AR and Cisco Router in IKEv1 Main Mode](https://forum.huawei.com/enterprise/en//data/attachment/forum/201702/23/20170223162158815001.png "Gateway Whiz]Example for Establishing an IPSec Tunnel Between the AR and Cisco Router in IKEv1 Main Mode")