Fernando,
Desafortunadamente en el ACS, no se puede deshabilitar sshv1 y tener solamente sshv2. Te mando más información al respecto.
Te mando más información al respecto.
Problem: Unable to disable SSHv1 enable only SSHv2 on the ACS appliance
Unable to disable SSHv1 and leave only the SSHv2 enabled on the ACS appliance.
Solution
Right now it is not possible to disable SSHv1 and leave only SSHv2 enabled. Both SSHv1 and SSHv2 are enabled together and cannot be disabled individually.
http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_tech_note09186a00808d9199.shtml#SSHv1v2
Muchas gracias,
Itzcoatl