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saa_monitor sending false alert for cisco device

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Article ID: 188548

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Updated On:

Products

DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Following alert generated from saa_monitor probe for one of the cisco device configured.

The 'echo' probe configuration is not available

Environment

Release : 9.0.2

Component : UIM - SAA_MONITOR

Resolution

All IP devices provide an UDP Echo Service that listens on port number 7 and responds to client requests (echo server).
In general the use of UDP Echo Service is not recommended because of router security concerns. Cisco routers also have this service but turned off by default.

If the echo server is enabled on the target Cisco Router and if the user tries to start an UDP operation that tries to communicate with responder on port number 7, the responder will fail because of socket bind problem (port number 7 already being used by echo server).
If the user intends to use responder, then they should not try to specify a port that might already be in use by other services on the router.

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