What Are Actual Functions / Roles Of A Router Firmware

Apr 14, 2011

I have several questions:

1. what are the actual functions/roles of a router firmware? Does the firmware work at routing or forwarding?
2. does the firmware automatically processes data? or...can he do that?
3. if a person connects to the internet through the router...does he came in contact with the firmware functions?
4. is the firmware accessed only when the user enters the configuration panel of the router?

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: Saved
:
ASA Version 8.3(1)
!
hostname ciscoasa
enable password Guh9Xxhb9mcC8lV1 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface Vlan2
description Outside WAN Interface
nameif outside
security-level 0
ip address 192.168.10.1 255.255.255.0
!
interface Vlan3
description Inside LAN Interface
nameif inside(code)

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