What you need is a way to get logs off your router to somewhere Splunk can parse them
Most typically, this is done by sending the router’s syslog messages to a syslog collector like SC4S.
From there, Splunk can then get the messages processed and ingested for anaylsis
from User warren – Stack Overflow https://stackoverflow.com/questions/69376301/how-to-monitor-data-traffic-in-wan-using-splunk/69436740#69436740
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