The Splunk Technology Add-On for Mikrotik RouterOS provides extractions and CIM normalization for Mikrotik RouterOS devices.
CIM data models network traffic, name resolution (DNS), DHCP and authentication are used.
To activate logging of RouterOS events activate Syslog logging. Use a Syslog server or activate a UDP input on Splunk Forwarder.
To activate logging use the CLI
create a logging action
/system logging action
add name=syslogbw remote=126.96.36.199 remote-port=5200 src-address=188.8.131.52 target=remote
create a logging profile
set 0 topics=info,!firewall
add action=syslog topics=info
add action=syslog topics=warning
add action=syslog topics=critical
add action=syslog topics=error
add action=syslog topics=dns,!debug
You need to enable logging for every rule you want to analyse. To do so specify a rulename and an action. Action needs to be "drop" or "accept".
use "log=yes log-prefix="rulename drop|accept" when creating a rule.
Here is an example for a drop rule:
add action=drop chain=input connection-nat-state=!dstnat connection-state=new in-interface=ether1 log=yes log-prefix="input_wan drop"
This is an example for a forward rule:
add action=accept chain=forward dst-address=0.0.0.0/0 in-interface=mynet log=yes log-prefix="fwd_bw_internet accept" out-interface=ether1 src-address=192.168.1.0/24
Download this TA and place it in etc/apps on your Searchhead, Indexers and Universal Forwarders (Syslog servers).
Here is an example inputs.conf:
index = batchworks
sourcetype = routeros
host_segment = 5
disabled = 0
Verify the data input and extraction works by searching for
sourcetype=routeros tag=network tag=communicate
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