Chapter 14. Network Setup

2.VLAN 201 is used to route untagged private IP addresses for pod 1, and pod 1 is connected to this layer-2 switch.

interface range ethernet all

switchport mode general

switchport general allowed vlan add 300-999 tagged

exit

The statements configure all Ethernet ports to function as follows:

•All ports are configured the same way.

•All VLANs (300-999) are passed through all the ports of the layer-2 switch.

14.4.2. Cisco 3750

The following steps show how a Cisco 3750 is configured for pod-level layer-2 switching.

1.Setting VTP mode to transparent allows us to utilize VLAN IDs above 1000. Since we only use VLANs up to 999, vtp transparent mode is not strictly required.

vtp mode transparent

vlan 300-999

exit

2. Configure all ports to dot1q and set 201 as the native VLAN.

interface range GigabitEthernet 1/0/1-24 switchport trunk encapsulation dot1q switchport mode trunk

switchport trunk native vlan 201 exit

By default, Cisco passes all VLANs. Cisco switches complain of the native VLAN IDs are different when 2 ports are connected together. That’s why you must specify VLAN 201 as the native VLAN on the layer-2 switch.

14.5. Hardware Firewall

All deployments should have a firewall protecting the management server; see Generic Firewall Provisions. Optionally, some deployments may also have a Juniper SRX firewall that will be the default gateway for the guest networks; see Section 14.5.2, “External Guest Firewall Integration for Juniper SRX (Optional)”.

14.5.1. Generic Firewall Provisions

The hardware firewall is required to serve two purposes:

•Protect the Management Servers. NAT and port forwarding should be configured to direct traffic from the public Internet to the Management Servers.

•Route management network traffic between multiple zones. Site-to-site VPN should be configured between multiple zones.

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Citrix Systems 4.2 manual Hardware Firewall, Generic Firewall Provisions
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4.2 specifications

Citrix Systems, a leading provider of virtualization solutions and cloud computing technologies, released version 4.2 of its popular software, Citrix XenApp, which was previously known as Presentation Server. This version marked a significant evolution in providing users with remote access to applications and desktops, emphasizing simplicity, performance, and security.

One of the standout features of Citrix XenApp 4.2 is its improved application streaming capabilities. This technology allows applications to be delivered to users in real-time, reducing the need for extensive local installations and enhancing the user experience. With application streaming, administrators can efficiently manage applications on a central server while ensuring that users have immediate access to the necessary tools.

Another highlight of this version is the enhanced security measures put in place to protect sensitive data. Citrix XenApp 4.2 includes support for SSL encryption, providing a secure communication channel for data transmitted between the server and clients. This is particularly crucial for businesses that need to comply with strict data protection regulations. Additionally, the integration of endpoint security features ensures that unauthorized access to applications is minimized.

Performance enhancements are also a critical focus in this release. Citrix optimized the delivery of applications over various network conditions, ensuring that users experience minimal latency regardless of their location. This was achieved through the incorporation of SmartAccess and SmartControl technologies, which allow administrators to set policies based on user roles, device types, and network conditions. This level of granularity enables organization-wide security without compromising on usability.

The user experience was further improved with a revamped interface, making it easier for end-users to access their applications and data. Simplified menus, clear navigation paths, and the ability to customize user settings contributed to a more efficient workflow, allowing users to focus on their tasks rather than struggling with the software.

Finally, Citrix XenApp 4.2 was designed to be highly scalable. Organizations of all sizes could deploy this solution to deliver applications efficiently, adapting to their specific needs as their user base grows or changes. This flexibility is crucial for businesses looking to future-proof their IT investments while maintaining optimal performance.

In summary, Citrix XenApp 4.2 stands out with its enhanced application streaming, robust security features, improved performance under varying conditions, user-friendly interface, and scalability, making it an ideal choice for organizations seeking to leverage virtualization for remote access to applications and desktops.
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