I have problem with the SNMP and dude. I monitoring my network with dude. I detect that the smnp trafic box are disapper in some line for different time. I made some firewall rule on the related router to see what happen. I see that the snmp request is come into the router with aaa.bbb.ccc destination IP address and the answer go from the router with xxx.yyy.zzz source ip address.
(aaa.bbb.ccc and xxx.yyy.zzz are on the same interface).After this experience I set the prefered source to aaa.bbb.ccc of the default route and the trafic-box is appear again. Why does not answer the router on the same address which IP was in the SNMP question?
