NIDS - position

[oguarisco]

Hi, I was wondering something about Security Design:

We've 2 security level composed by 2 firewall, I've thought to introduce a NIDS between these two FW...the second Firewall does VPN termination so the traffic will be encrypted from connection outside to inside...Does make sense to put a NIDS in this position ???

[smahbub]

IDS would still pickup any signatures on this wire that indicate an infiltration through the first firewall. While slim, it’s possible you’d get an alarm from this location.