i want use gns3when i opened it is asking ios image file  to communicatecan any one send me the link from where i can download the ios the routersregardsshabazhussain

hi guysam new to routing ,am using pix 515e and internet  router 1840 ciscoi have cofigured two interfaces  e 0/0  of both pix and routerrouterinternet router fe0/1 is outside internet router fe0/0 is inside? pix firwall e0/0 is outside directly conn...