Getting Started with Citrix ADC
Deploy a Citrix ADC VPX instance
Install a Citrix ADC VPX instance on Microsoft Hyper-V servers
Install a Citrix ADC VPX instance on Linux-KVM platform
Prerequisites for Installing Citrix ADC VPX Virtual Appliances on Linux-KVM Platform
Provisioning the Citrix ADC Virtual Appliance by using OpenStack
Provisioning the Citrix ADC Virtual Appliance by using the Virtual Machine Manager
Configuring Citrix ADC Virtual Appliances to Use SR-IOV Network Interface
Configuring Citrix ADC Virtual Appliances to use PCI Passthrough Network Interface
Provisioning the Citrix ADC Virtual Appliance by using the virsh Program
Provisioning the Citrix ADC Virtual Appliance with SR-IOV, on OpenStack
Configuring a Citrix ADC VPX Instance on KVM to Use OVS DPDK-Based Host Interfaces
Deploy a Citrix ADC VPX instance on Microsoft Azure
Network architecture for Citrix ADC VPX instances on Microsoft Azure
Configure multiple IP addresses for a Citrix ADC VPX standalone instance
Configure a high-availability setup with multiple IP addresses and NICs
Configure a high-availability setup with multiple IP addresses and NICs by using PowerShell commands
Configure HA-INC nodes by using the Citrix high availability template with Azure ILB
Configure address pools (IIP) for a Citrix Gateway appliance
Upgrade and downgrade a Citrix ADC appliance
Solutions for Telecom Service Providers
Load Balance Control-Plane Traffic that is based on Diameter, SIP, and SMPP Protocols
Provide Subscriber Load Distribution Using GSLB Across Core-Networks of a Telecom Service Provider
Authentication, authorization, and auditing application traffic
Configuring authentication, authorization, and auditing policies
Configuring Authentication, authorization, and auditing with commonly used protocols
Use an on-premises Citrix Gateway as the identity provider for Citrix Cloud
Troubleshoot authentication issues in Citrix ADC and Citrix Gateway with aaad.debug module
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Persistence and persistent connections
Advanced load balancing settings
Gradually stepping up the load on a new service with virtual server–level slow start
Protect applications on protected servers against traffic surges
Retrieve location details from user IP address using geolocation database
Use source IP address of the client when connecting to the server
Use client source IP address for backend communication in a v4-v6 load balancing configuration
Set a limit on number of requests per connection to the server
Configure automatic state transition based on percentage health of bound services
Use case 2: Configure rule based persistence based on a name-value pair in a TCP byte stream
Use case 3: Configure load balancing in direct server return mode
Use case 6: Configure load balancing in DSR mode for IPv6 networks by using the TOS field
Use case 7: Configure load balancing in DSR mode by using IP Over IP
Use case 10: Load balancing of intrusion detection system servers
Use case 11: Isolating network traffic using listen policies
Use case 12: Configure Citrix Virtual Desktops for load balancing
Use case 13: Configure Citrix Virtual Apps for load balancing
Use case 14: ShareFile wizard for load balancing Citrix ShareFile
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Authentication and authorization
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Configuring a CloudBridge Connector Tunnel between two Datacenters
Configuring CloudBridge Connector between Datacenter and AWS Cloud
Configuring a CloudBridge Connector Tunnel Between a Datacenter and Azure Cloud
Configuring CloudBridge Connector Tunnel between Datacenter and SoftLayer Enterprise Cloud
Configuring a CloudBridge Connector Tunnel Between a Citrix ADC Appliance and Cisco IOS Device
CloudBridge Connector Tunnel Diagnostics and Troubleshooting
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Use case 7: Configure load balancing in DSR mode by using IP Over IP
您可以配置您的Citrix ADC设备使用direct server return (DSR) mode across Layer 3 networks by using IP tunneling, also calledIP over IPconfiguration. As with standard load balancing configurations for DSR mode, this allows servers to respond to clients directly instead of using a return path through the Citrix ADC appliance, improving response times and throughput. As with standard DSR mode, the Citrix ADC appliance monitors the servers and performs health checks on the application ports.
With IP over IP configuration, the Citrix ADC appliance and the servers do not need to be on the same Layer 2 subnet. Instead, the Citrix ADC appliance encapsulates the packets before sending them to the destination server. After the destination server receives the packets, it decapsulates the packets, and then sends its responses directly to the client.
To configure IP over IP DSR mode on your Citrix ADC appliance, you must do the following:
- Create a load balancing virtual server. Set the protocol to ANY and set the mode to IPTUNNEL.
- Create services. Create a service for each of your back-end applications. Bind the services that you created to the virtual server.
- Configure for decapsulation. You can configure either a Citrix ADC appliance or a back-end server to act as a decapsulator.
Configure a load balancing virtual server
Configure a virtual server to handle requests to your applications. Assign a service type of ANY and set the forwarding method to IPTUNNEL. Optionally, configure the virtual server to operate in sessionless mode. You can configure any load balancing method that you want to use.
To create and configure a load balancing virtual server for IP over IP DSR by using the command line interface
At the command prompt type the following command to configure a load balancing virtual server for IP over IP DSR and verify the configuration:
add lb vserver serviceType IPAddress Port -lbMethod -m -sessionless show lb vserver
Example:
In the following example, we have selected the load balancing method as sourceIPhash and configured sessionless load balancing.
add lb vserver Vserver-LB-1 ANY 10.102.29.60 * -lbMethod SourceIPHash -m IPTUNNEL -sessionless enabled
To create and configure a load balancing virtual server for IP over IP DSR by using the configuration utility
- Navigate to Traffic Management > Load Balancing > Virtual Servers.
- Create a virtual server, and specify Redirection Mode as IP Tunnel Based.
Configure services for IP over IP DSR
After creating your load-balanced server, You must configure one service for each of your applications. The service handles traffic from the Citrix ADC appliance to those applications, and allows the Citrix ADC appliance to monitor the health of each application.
You assign a service type of ANY and configure it for USIP mode. Optionally, you can also bind a monitor of type IPTUNNEL to the service for tunnel-based monitoring.
To create and configure a service for IP over IP DSR by using the command line interface
At the command prompt, type the following commands to create a service and optionally, create a monitor and bind it to the service:
add service -usip add monitor -destip -iptunnel bind service -monitorName
Example:
In the following example, we are creating a monitor of type IPTUNNEL:
add monitor mon-1 PING -destip 10.102.29.60 -iptunnel yes add service Service-DSR-1 10.102.30.5 ANY * -usip yes bind service Service-DSR-1 -monitorName mon-1
To configure a monitor by using the configuration utility
- Navigate toTraffic Management > Load Balancing > Monitors.
- Create a monitor, and selectIP Tunnel.
To create and configure a service for IP over IP DSR by using the configuration utility
- Navigate to Traffic Management > Load Balancing > Services.
- Create a service and, in Settings, select Use Source IP Address.
To bind a service to a load balancing virtual server by using the command line interface
At the command prompt type the following command:
bind lb vserver
Example:
bind lb vserver Vserver-LB-1 Service-DSR-1
To bind a service to a load balancing virtual server by using the configuration utility
- Navigate toTraffic Management > Load Balancing > Virtual Servers.
- Open a virtual server, and click in theServicessection to bind a service to the virtual server.
Using the Client IP address in the Outer Header of Tunnel Packets
The Citrix ADC supports using the client IP address as the source IP address in the outer header of tunnel packets related to direct server return mode using IP tunneling. This feature is supported for DSR with IPv4 and DSR with IPv6 tunneling modes. For enabling this feature, enable theuse client source IP addressparameter for IPv4 or IPv6. This setting is applied globally to all the DSR configurations that use IP tunneling.
To use client IP address as the source IP address on outer header of IPv4 tunnel packets by using the CLI
At the command prompt, type:
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set iptunnelparam-useclientsourceip[YES NO] - show iptunnelparam
To use client IP address as the source IP address on outer header of IPv4 tunnel packets by using the GUI
- Navigate toSystem > Network.
- InSettingstab, clickIPv4 Tunnel Global Settings.
- In theConfigure IPv4 Tunnel Global Parameterspage, selectUse Client Source IPcheck box.
- ClickOK.
To use client source IP address as the source IP address on outer header of IPv6 tunnel packets by using the CLI
At the command prompt, type:
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set ip6tunnelparam-useclientsourceip[YES NO] - show ip6tunnelparam
To use client IP address as the source IP address on outer header of IPv6 tunnel packets by using the GUI
- Navigate toSystem > Network.
- InSettingstab, clickIPv6 Tunnel Global Settings.
- In theConfigure IPv6 Tunnel Global Parameterspage, selectUse Client Source IPcheck box.
- ClickOK.
Following is a sample load balancing configuration in DSR mode using IPv4 tunneling. LBVS-IPIP-1 is the load balancing virtual server, and services SERVICE-DSR-IPIP-1 and SERVICE-DSR-IPIP-2 are bound to LBVS-IPIP-1.
> set iptunnelparam -useclientsourceip YES Done >add service SERVICE-DSR-IPIP-1 192.0.2.91 ANY * -usip yes Done > add service SERVICE-DSR-IPIP-2 192.0.2.92 ANY * -usip yes Done >add lb vserver LBVS-IPIP-1 ANY 203.0.113.9 * -m IPTUNNEL Done >bind lb vserver LBVS-IPIP-1 Service-DSR-1 Done >bind lb vserver LBVS-IPIP-1 Service-DSR-2 Done
Decapsulator configuration
When a Citrix ADC appliance is used as a decapsulator, an IP tunnel must be created in the Citrix ADC appliance. For details, seeConfiguring IP Tunnels.
Example configuration:
add lb vserver v1 any 1.1.1.1 * -m IPTUNNEL add service s1 2.2.2.2 ANY * bind lb vserver v1 s1 add iptunnel tun1
netmask * add ns ip 1.1.1.1 255.255.255.255 –type vip –arp disabled add lb vserver v1 any 1.1.1.1 * add service s1 ANY * bind lb vserver v1 s1 When a back-end server is used as a decapsulator, the back-end configuration varies depending on the server type. The steps involved in configuring a back-end server as a decapsulator are;
- Configure a loop back interface.
- Add a route through tunnel interface.
Note: Make sure that the tunnel modules are installed in the system.
Example configuration:
In this example, 1.1.1.1 is the Citrix ADC virtual IP (VIP) address and 2.2.2.2 is the back end server IP address.
The VIP address is configured in the loopback interface and a route is added through the tunnel interface. Themodprobe ipip
command is used for enabling the tunnel interface.
add lb vserver v1 ANY 1.1.1.1 80 -m IPTUNNEL add service svc1 2.2.2.2 ANY 80 -usip YES -useproxyport NO bind lb vserver v1 svc1 ifconfig lo inet 1.1.1.1 netmask 255.255.255.255 modprobe ipip echo 1 > /proc/sys/net/ipv4/conf/tunl0/arp_ignore echo 2 > /proc/sys/net/ipv4/conf/tunl0/arp_announce ifconfig tunl0 1.1.1.1 netmask 255.255.255.255 up route add -host 1.1.1.1 dev tunl0
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