Iam rather new to NIDS.
We have cisco NIDS- 4250 installed in our network. for past one day we are not able to ping NIDS ip 10.0.0.225. All the physical cables are working and no change has been made to the configuration.
IDS is not reachable even fromm its default gateway ie the next hop , which is a core switch.
NIDS is accessible via the serial console . and from NIDS console we are not able to ping other devices also.
tried swapping cables....
we have 5 interfaces on NIDS of which two , ie int0 and int5 are enabled.