12/15/2023 0 Comments Splunk inputlookup cisco umbrella![]() ![]() (Optional) If you want more control over the data you bring in, you'll need to do separate inputs using these S3 Key Prefixes "/proxylogs/", "/dnslogs/", "/firewalllogs/", "/auditlogs/" and "/iplogs/". (Recommended) Do not set a S3 Key Prefix, and change the sourcetype to "opendns:s3".ĥ. Select the appropriate AWS Account/Role/S3 Bucketĥ. Create a new input (Custom Data Type > Generic S3)Ĥ. Refer to the reference link to configure AWS and set up the account in Splunk, you can follow the rest of the steps in this guide when you reach the "Configuring Data Inputs for Splunk" step.ģ. ![]() If your AWS collection point is on your Indexer, then this add-on needs to go on the Indexer and on your Search Head. If you are using your Search Head as the AWS collection point, then this only needs to go on your search head. It is recommended that you setup the AWS inputs on a Heavy Forwarder, and it is recommended that you setup the Cisco Umbrella Add-on on the Heavy Forwarder and Search Head. Ultimately this add-on needs to be installed on your Search Head and on the AWS Add-on collection point. Supports Cisco Umbrella Log Management Version 1-5.If using Cisco Managed S3, use their app here:.Requires Splunk Add-on for Amazon Web Services (unless using Cisco Managed S3).Built for Splunk Enterprise 6.x.x or higher. ![]() This add-on requires the Splunk Add-on for Amazon Web Services as the means of data on-boarding. The purpose of this add-on is to provide CIM compliant field extractions for Cisco Umbrella OpenDNS logs AWS S3 bucket logs. | lookup networks network as dest_ip output nameĪnd obviously, that last line can be changed to `| stats count by name` or any number of other things.įor reference, my networks.csv looks like this: network,nameĪnd the nf entry looks like Īnd the transforms.Downloading Cisco Umbrella Add-On for Splunk In your case, if dest_ip is the field to use, you'd use something like index=firewall sourcetype=cisco:asa blah blah I do it this way because if you were, say, matching against firewall data, you could replace the first four lines (makeresults through mvexpand) with whatever search you had that displayed an IP address, then modify the lookup slightly and it should work on data of pretty much unbounded size, and quickly. | lookup networks network as ip output name Then here's a run anywhere search that creates three ip addresses (each in their own event), then uses the lookup we just created to match it to a network. On "Match type" type in "CIDR(network)" to tell it to cidrmatch on the csv file's field "network." Settings/Lookups/Lookup Definitions (the file's already there so you don't have to add it in "lookup table files").Īdd a new lookup definition, name it "networks" or similar, pick your file. There's probably a simple solution to this but I'm not seeing it!įirst, and primarily, I'd switch the csv file /inputlookup into a regular cidr based lookup. The first issue is that if there is no match, the row isn't returned all (I just want particular fields in a row of returned data to reflect the VLAN and friendly name of the network (if available in the CSV), not for the row to not be available. ![]() | inputlookup Network_VLAN_Names.csv | fields network vlan name| where NOT isnull(network) If there is no match I want the fields to just return "No Data" so we can then go and update the CSV with anything missing. So I'd like to pull in the CSV data and perform a cidrmatch against it using each IP address the search comes across. We basically want to know what network and VLAN a given address belongs to so I created a CSV file that contains the following: We run searches against logs that return, as part of the dataset, IP addresses. ![]()
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