Gateway Two is located at the sales office and is configured with the following settings:

Internet IP address: 174.27.34.202

LAN IP address: 192.168.2.1

Remote Subnet Mask: 255.255.255.0

To set up an IPSec Connection between the two Gateways, do the following on each Gateway:

1Select IPSec Enabled from the VPN Mode screen.

2Switch to the VPN Connections screen and click New.

3In the Connection Name field enter: headsales

4In the Description field enter: Connection between head office and sales office.

5Ensure that the Gateway to gateway radio button is selected.

6Enter the Internet IP address of the Gateway you are configuring in the This Gateway’s ID field.

a Enter 174.19.201.162 on Gateway One. b Enter 172.27.34.202 on Gateway Two.

7Enter the Internet IP address of the other Gateway in the Remote IPSec Server Address field.

a Enter 174.27.34.202 on Gateway One. b Enter 172.19.201.162 on Gateway Two.

8Enter the IP address of the other LAN subnet in the Remote Network address field.

a Enter 192.168.2.0 on Gateway One. b Enter 192.168.1.0 on Gateway Two.

9The Remote Subnet Mask is a default setting of 255.255.255.0.

10Enter a password in the Tunnel Shared Key field in both Gateways. The example uses TYP0249//23b as the shared key.

11Choose DES as the Encryption Type.

12Choose SHA-1 as the Hash Algorithm.

13Choose Diffie-Hellman Group 1 (768 bit) the in the Exchange keys using drop-down box.

14Ensure that the Use Perfect Forward Secrecy box is checked

15Click Apply to save your changes or Close to return without saving.

L2TP over IPSec Connections

If you have selected L2TP over IPSec as your Tunnel Type, enter the following values. See Figure 55:

Password — The password that will need to be supplied to connect.

Figure 55 L2TP over IPSec Connections

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Image 59
3Com 3CR856-95 manual L2TP over IPSec Connections, Connection Name field enter headsales

3CR856-95 specifications

The 3Com 3CR856-95 is a versatile networking device designed to meet the demands of small to medium-sized businesses. As a part of the 3Com OfficeConnect series, the 3CR856-95 combines switching, routing, and security features into a compact, integrated solution that enhances network performance and reliability.

One of the main features of the 3CR856-95 is its ability to support multiple network configurations. It operates as a router and switch simultaneously, offering six Ethernet ports for wired connections, while also integrating wireless capabilities. This allows businesses to connect various devices seamlessly, including computers, printers, and smartphones, providing flexibility and convenience in a modern office environment.

The device incorporates advanced technologies such as Quality of Service (QoS) which prioritizes network traffic to ensure that bandwidth-intensive applications like video conferencing and VoIP run smoothly. This feature is essential for maintaining productivity and communication efficiency in busy office settings. Additionally, the 3CR856-95 supports both IPv4 and IPv6 protocols, making it a future-proof solution as businesses transition to the newer Internet Protocol standard.

Security is a critical consideration for any networking equipment, and the 3CR856-95 addresses this with robust measures. It includes a built-in firewall that protects the network from external threats, along with support for Virtual Private Networks (VPN), allowing secure remote access for employees working from off-site locations. Furthermore, the device supports WPA2 encryption for wireless connections, safeguarding sensitive data transmitted over the network.

Another important characteristic of the 3CR856-95 is its user-friendly interface, which simplifies the setup and management of the network. The device features a web-based management console that allows network administrators to easily configure settings, monitor traffic, and troubleshoot issues from any internet-connected device. This accessibility saves time and reduces the complexity often associated with network management.

In summary, the 3Com 3CR856-95 is a robust and feature-rich networking solution tailored for small to medium-sized businesses. With its combination of switching, routing, and security features, it provides a reliable platform for facilitating seamless communication and connectivity. Its support for advanced technologies and user-friendly management interface makes it a smart choice for organizations looking to enhance their network infrastructure.