Greetings.In a project with a Pix 520 Firewall.  Topology is router to hub (inside) to firewall (inside port) - xp server connected to the hub.  Dmz to dmz of firewall (outside).  Hub (outside) to linux boxes.Can ping from server to linux boxes, but ...

In an attempt to understand the inner workings of a router, in particular the series 2500, my question is in regard to flash and nvram.  Is flash and nvram two actual differing circuit boards, or is it more like the relationship between bios and cmos...