I have IDS 4215(version 4) running fine for 2 years. suddenly i could not access the IDS4215 via console or telnet last month . I rebooted it but there is no change.
Then We get the ROMMON prompt via CTRL-R. We executed the procedures in "Installing the IDS-4215 system image" . We have installed version 5. So we lost the old license for IDS 4215 ver 4. How can we obtain old license ?
We want to make the IDS 4215 run with version 5 and latest signatures. What do we need about it ?
Yes you can roll back to version 4.x, but I don't think you will want to.
There are no new signature updates being created for version 4.x.
So you won't be protected against any of the recent attacks being seen in the Internet.
Understand that the license file is only checked during signature update installation.
The sensor will function properly without a license. It is just that you can not install new signature updates without a license.
So even a version 5 or even 6 sensor will function properly without a license. It is just that you can not install signature updates without the license.
There was not a license file in ver 4.
Licensing was introduced in ver 5.
Licenses are included as part of your Cisco Service for IPS maintenance contract.
To see if you have an up to date contract just go into IDM's License configuration page and click the button to tell IDM to check cisco.com for a license.
If it comes back with a license then your contract is up to date and everything is good.
If it does not come back with a license, then likely you do not have a Cisco Service for IPS service contract for your sensor.
Contract your Cisco Sales Reprentative or Authorized Cisco Reseller and request a quote for Cisco Service for IPS contract for your sensor.
Be sure to provide them the serial number of your sensor when you purchase the contract so it will be properly tracked in Cisco's contract database.