IP Reservation in Isolated Guest Networks

• Domain: The domain associated with the account.

16.15. IP Reservation in Isolated Guest Networks

In isolated guest networks, a part of the guest IP address space can be reserved for non- CloudPlatform VMs or physical servers. To do so, you configure a range of Reserved IP addresses by specifying the CIDR when a guest network is in Implemented state. If your customers wish to have non-CloudPlatform controlled VMs or physical servers on the same network, they can share a part of the IP address space that is primarily provided to the guest network.

In an Advanced zone, an IP address range or a CIDR is assigned to a network when the network is defined. The CloudPlatform virtual router acts as the DHCP server and uses CIDR for assigning IP addresses to the guest VMs. If you decide to reserve CIDR for non-CloudPlatform purposes, you can specify a part of the IP address range or the CIDR that should only be allocated by the DHCP service of the virtual router to the guest VMs created in CloudPlatform. The remaining IPs in that network are called Reserved IP Range. When IP reservation is configured, the administrator can add additional VMs or physical servers that are not part of CloudPlatform to the same network and assign them the Reserved IP addresses. CloudPlatform guest VMs cannot acquire IPs from the Reserved IP Range.

16.15.1. IP Reservation Considerations

Consider the following before you reserve an IP range for non-CloudPlatform machines:

•IP Reservation is supported only in Isolated networks.

•IP Reservation can be applied only when the network is in Implemented state.

•No IP Reservation is done by default.

•Guest VM CIDR you specify must be a subset of the network CIDR.

•Specify a valid Guest VM CIDR. IP Reservation is applied only if no active IPs exist outside the Guest VM CIDR.

You cannot apply IP Reservation if any VM is alloted with an IP address that is outside the Guest

VM CIDR.

•To reset an existing IP Reservation, apply IP reservation by specifying the value of network CIDR in the CIDR field.

For example, the following table describes three scenarios of guest network creation:

Case

CIDR

Network CIDR

Reserved IP

Description

 

 

 

 

Range for Non-

 

 

 

 

 

CloudPlatform

 

 

 

 

 

VMs

 

 

 

 

 

 

 

 

1

10.1.1.0/24

None

None

No IP

 

 

 

 

 

Reservation.

 

 

 

 

 

 

 

2

10.1.1.0/26

10.1.1.0/24

10.1.1.64 to

IP Reservation

 

 

 

 

10.1.1.254

configured by the

 

 

 

 

 

UpdateNetwork

 

 

 

 

 

API with

 

 

 

 

 

guestvmcidr=10.1.1.0/26

 

 

 

 

 

or enter

 

 

 

 

 

10.1.1.0/26 in the

 

 

 

 

 

 

 

177

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Citrix Systems 4.2 manual IP Reservation in Isolated Guest Networks, IP Reservation Considerations
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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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