Other than that please tell us exactly what you're seeing after you place the CDROM in the drive and reboot the 4220. Make sure you have a screen and keyboard attached, OR a PC connected to COM1, do NOT have both connected though.
If you need to change the boot sequence in CMOS setup, it should be:
1. [Removable Devices]
2. [ATAPI CD-ROM Drive]
3. [Hard Drive]
4. [LANDesk (R) Service Agent II]
Let me know if you need instructions on doing this. You should be able to access CMOS setup using your serial connection if redirection is enabled in BIOS. It may not be enabled by default on your system, depending on when it was manufactured.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...