Siemens RUGGEDCOM RX1510, Руководство пользователя

Страница: 644 / 856

Chapter 5
Setup and Configuration
RUGGEDCOM ROX II
User Guide
612 Cancelling a Link Failover Test
Section 5.27.7
Cancelling a Link Failover Test
To cancel a link failover test, do the following:
1. In normal mode or edit mode, navigate to
services » link-failover » {interface} » cancel-test , where
{interface} is the name of the interface. The Trigger Action forms appear.
1
Figure 716: Trigger Action Form
1. Perform Button
2. Click Perform to cancel the test.
Section 5.28
Managing IPsec Tunnels
IPsec (Internet Protocol SECurity) uses strong cryptography to provide authentication and encryption services.
Authentication ensures that packets are from the right sender and have not been altered in transit. Encryption
prevents unauthorized reading of packet contents.
These services allow secure tunnels to be built through untrusted networks. Everything passing through the
untrusted network is encrypted by the IPsec gateway and decrypted by the gateway at the other end. The result
is a Virtual Private Network (VPN), a network which is effectively private even though it includes machines at
several different sites connected by the insecure Internet.
For more information about IPsec tunnels, refer to
Section 5.28.1, “IPsec Tunneling Concepts” .
IMPORTANT!
IPsec is time-sensitive. To make sure proper re-keying between network peers, the time on both peers
must be synchronized. It is strongly recommended that NTP (Network Time Protocol) be used on
both IPsec peers to synchronize their clocks. For more information about configuring NTP, refer to
Section 5.12.11, “Managing NTP Servers” .
The following sections describe how to configure and manage an IPsec tunnel:
•
Section 5.28.1, “IPsec Tunneling Concepts”
• Section 5.28.2, “Configuring IPsec Tunnels”
• Section 5.28.3, “Configuring Certificates and Keys”
• Section 5.28.4, “Viewing the IPsec Tunnel Status”
• Section 5.28.5, “Managing Pre-Shared Keys”