03-18-2021 12:35 AM
ISE is such a big cumbersome beast. Are there any commonly used alternatives for NAC on Cisco switches and wireless?
03-18-2021 01:05 AM - edited 03-18-2021 01:07 AM
Freeradius or MS NPAS
or other commercials :
03-18-2021 05:27 AM
ISE is such a big cumbersome beast.
-This is because it is the best option on the market in regard to NAC. Well worth the time and investment especially if already in a Cisco centric environment.
03-19-2021 05:31 PM
Good night from here,
Before going into ISE or ACS I had the time to test NAC solutions for security corporate reasons. I came across PacketFence as an Open Source Solution (and for education purposes).
Then configured everything with low resources, then upgraded into ISE 2.7p3. Everything started easy after we already had our network adapted for that.
hope that my opinion would work for you.
03-19-2021 08:35 PM
I'll do some research on what a VM ISE implementation would look like when specifying "low resources". My first run through the sizing estimator told me i need a VM with 96 cpu cores!
03-20-2021 08:51 AM
you can start with 32GB with less CPU
03-20-2021 08:25 AM
hey ! that's huge!
well please consider a lab environment first: Standalone mode VM that will serve one SSID. (8 vCPU / 8 GB RAM / 300 GB Storage)
Then grow up to PoC lab: Two HA nodes serving WiFi and cable. (2x 8 vCPU / 16 GB RAM / 300 GB Storage)
I read the community post regarding ISE deployments.
And took the risk with low impact considerations.
Started with specific groups such as Guests for HQ then remote offices, one by one (only 10 sites).
https://community.cisco.com/t5/security-documents/cisco-ise-amp-nac-resources/ta-p/3621621
of course, this was a lapse time of 3 months (the demo license period). and after this we decided to move on with ISE 2x SNS 3615 HA mode with Mnt node over VMWare for log storage in a SAN.
hope that helps,
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