First identify the name of the interface you want to add static route to:
# ip addr list
In my specific case, I wanted to add route to xapi0.
Now, lets grab UUID:
xe network-list bridge=xapi0 | grep uuid
Finally use UUID to set static route:
xe network-param-set uuid=<Network UUID> other-config:static-routes=<network>/<bitmask>/<gateway IP>
Check if everything is set ok:
# xe network-param-get uuid=<Network UUID> param-name=other-config
static-routes: <network>/<bitmask>/<gateway IP>; automatic: true
Reboot to be safe, and recheck with ip route show.
Connect to the console or XenServer host.
Retrieve the UUID of the virtual machine:
xe vm-list name-label=<vm_label> params=uuid
Clear the HVM boot mode:
xe vm-param-set uuid=<vm uuid> HVM-boot-policy=””
Set pygrub as the boot loader:
xe vm-param-set uuid=<vm uuid> PV-bootloader=pygrub
Set the display arguments:
xe vm-param-set uuid=<vm uuid> PV-args="console=tty0 xencons=tty"
Note: other possible options are: console=hvc0 xencons=hvc or console=tty0 or console=hvc0
Find the UUID of the interface of the virtual disk:
xe vm-disk-list uuid=<vm uuid>
Set the disk device as bootable:
xe vbd-param-set uuid=<vbd uuid> bootable=true
The virtual machine should now boot paravirtualized using a Xen aware kernel.
When booting the virtual machine, it should start up in text-mode with the
high-speed PV kernel. If the virtual machine fails to boot, the most likely
cause is an incorrect grub configuration; run the xe-edit-bootloader script
(xe-edit-bootloader -n <vm_label>) at the XenServer host console to edit
the grub.conf of the virtual machine until it boots.
Note: If the virtual machine boots and mouse and keyboard controls do not work properly, closing and re-opening XenCenter generally resolves this issue. If the issue is still not resolved, try other console settings for PV-args, being sure to reboot the virtual machine and close and re-open XenCenter between each setting change.