One of our NRS boxes has been upgraded to twin PIII/600 processors, 512Mb RAM and has had an IDE disk added and Adaptec card and SCSI disk removed. This behaves similarly to a 4230. It also upgraded to version 4 just fine.
Can someone advise what it is that causes Cisco not to recommend using IDS 4 on NRS boxes? The principal differences we can see are:
- memory (128Mb vs 512Mb)
- processor (2 * PII/400 vs PIII/600)
- Adaptec SCSI card
- SCSI disk vs IDE disk
given RedHat supports all the above, I am a bit confused.
There are a number of reasons Cisco does not recommend or support this type of conversion. Most notably is the Field Notice describing a problem with the IDS-4230 appliances that makes them susceptible to early failure. There is currently a replacement program in place for registered IDS-4230 customers.
Based on the changes you describe above, your modified NRS box is now susceptible to the same early failure. If this occurs, the box will not be covered by a support contract because the modifications are unauthorized.
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...