Configuring LINUX Servers in DSR Mode

Updated: 2012-03-19

The LINUX operating system requires that you set up a loopback interface with the NetScaler appliance virtual IP address (VIP) on each load balanced server in the DSR cluster.
To configure LINUX server in DSR mode

To create a loop back interface with the NetScaler appliance’s VIP on each load balanced server, at the Linux OS prompt type the following commands:

ifconfig dummy0 up

ifconfig dummy0:0 inet netmask 255.255.255.255 up

echo 1 > /proc/sys/net/ipv4/conf/dummy0/arp_ignore

echo 2 > /proc/sys/net/ipv4/conf/dummy0/arp_announce

Then, run the software that re-maps the TOS id to VIP.
Note: Add the correct mappings to the software before running it. In the preceding commands, the LINUX server uses dummy0 to connect to the network. When you use this command, type the name of the interface that your LINUX server uses to connect to the network.

http://support.citrix.com/proddocs/topic/netscaler-load-balancing-93/ns-lb-usecases-dsrmode-linux-tsk.html

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