You can not add a second IP network address on the PM.
Yes, you can do it on a cisco 2501 as it supports non-standard
secondary addressing.
Since I don't regularly configure Cisco's I'd have to refer you to the
manuals or Cisco support.
JGT
-- John G. Thompson Livingston Enterprises Inc. Phone: (800) 458-9966 JOAT(MON) 6920-220 Koll Centre Pkwy. Fax: (510) 426-8951 support@livingston.com Pleasanton, CA 94566 http://www.livingston.com