Console
    Start free

    Collect Cisco Catalyst SD-WAN Manager logs

    Supported in:

    This document explains how to ingest Cisco Catalyst SD-WAN Manager (formerly known as vManage) logs to Google Security Operations using Google Cloud Storage. Cisco Catalyst SD-WAN Manager is a centralized network management system that provides visibility and control over SD-WAN fabric, enabling administrators to monitor network performance, configure policies, and manage security across distributed enterprise networks.

    Before you begin

    Make sure that you have the following prerequisites:

    • A Google SecOps instance
    • A GCP project with Cloud Storage API enabled
    • Permissions to create and manage GCS buckets
    • Permissions to manage IAM policies on GCS buckets
    • Permissions to create Cloud Run services, Pub/Sub topics, and Cloud Scheduler jobs
    • Privileged access to the Cisco Catalyst SD-WAN Manager management console
    • Cisco Catalyst SD-WAN Manager user account with API access permissions

    Create Google Cloud Storage bucket

    1. Go to the Google Cloud Console .
    2. Select your project or create a new one.
    3. In the navigation menu, go to Cloud Storage > Buckets.
    4. Click Create bucket.

    5. Provide the following configuration details:

      Setting Value
      Name your bucket Enter a globally unique name (for example, cisco-sdwan-logs-bucket )
      Location type Choose based on your needs (Region, Dual-region, Multi-region)
      Location Select the location (for example, us-central1 )
      Storage class Standard (recommended for frequently accessed logs)
      Access control Uniform (recommended)
      Protection tools Optional: Enable object versioning or retention policy

    6. Click Create.

    Collect Cisco Catalyst SD-WAN Manager API credentials

    1. Sign in to the Cisco Catalyst SD-WAN Manager console.
    2. From the menu, go to Administration > Manage Users.
    3. Click Add User.
    4. Provide the following configuration details:
      • Username: Enter a username for API access (for example, chronicle-api ).
      • Password: Enter a strong password.
      • Confirm Password: Re-enter the password.
      • User Group: Select a user group with appropriate permissions (see the next section).
    5. Click Add.

    6. Copy and save in a secure location the following details:

      • Username: Your Catalyst SD-WAN Manager username.
      • Password: Your Catalyst SD-WAN Manager password.
      • Catalyst SD-WAN Manager Base URL: The base URL of your Catalyst SD-WAN Manager server (for example, https://sdwan-manager.example.com:8443 ).

    Configure user permissions

    The API user account requires specific permissions to access audit logs, alarms, and events.

    1. In the Cisco Catalyst SD-WAN Manager console, from the menu, go to Administration > Manage Users > User Groups.
    2. Select the user group assigned to the API user (or click Add User Groupto create a new group).
    3. Click Edit.
    4. In the Featuresection, ensure the following permissions are enabled:
      • Audit Log: Select Readpermission.
      • Alarms: Select Readpermission.
      • Events: Select Readpermission.
    5. Click Update.

    Verify API access

    Test your credentials before proceeding with the integration:

    1. Open a terminal or command prompt.

    2. Run the following command to test authentication:

        # Replace with your actual credentials 
 SDWAN_HOST 
 = 
 "https://sdwan-manager.example.com:8443" 
 SDWAN_USERNAME 
 = 
 "chronicle-api" 
 SDWAN_PASSWORD 
 = 
 "your-password" 
 # Test authentication using session-based login (returns JSESSIONID cookie) 
curl  
-c  
cookies.txt  
-X  
POST  
 \ 
  
 " 
 ${ 
 SDWAN_HOST 
 } 
 /j_security_check" 
  
 \ 
  
-H  
 "Content-Type: application/x-www-form-urlencoded" 
  
 \ 
  
-d  
 "j_username= 
 ${ 
 SDWAN_USERNAME 
 } 
& j_password= 
 ${ 
 SDWAN_PASSWORD 
 } 
 " 
 # Get CSRF token (X-XSRF-TOKEN) 
curl  
-b  
cookies.txt  
 \ 
  
 " 
 ${ 
 SDWAN_HOST 
 } 
 /dataservice/client/token"

    If authentication is successful, the second command will return a CSRF token string.

    The Cloud Run function needs a service account with permissions to write to GCS bucket and be invoked by Pub/Sub.

    1. In the GCP Console, go to IAM & Admin > Service Accounts.
    2. Click Create Service Account.
    3. Provide the following configuration details:
      • Service account name: Enter cisco-sdwan-collector-sa .
      • Service account description: Enter Service account for Cloud Run function to collect Cisco Catalyst SD-WAN Manager logs .
    4. Click Create and Continue.
    5. In the Grant this service account access to projectsection, add the following roles:
      1. Click Select a role.
      2. Search for and select Storage Object Admin.
      3. Click + Add another role.
      4. Search for and select Cloud Run Invoker.
      5. Click + Add another role.
      6. Search for and select Cloud Functions Invoker.
    6. Click Continue.
    7. Click Done.

    These roles are required for:

    • Storage Object Admin: Write logs to GCS bucket and manage state files
    • Cloud Run Invoker: Allow Pub/Sub to invoke the function
    • Cloud Functions Invoker: Allow function invocation

    Grant IAM permissions on GCS bucket

    Grant the service account write permissions on the GCS bucket:

    1. Go to Cloud Storage > Buckets.
    2. Click on your bucket name.
    3. Go to the Permissionstab.
    4. Click Grant access.
    5. Provide the following configuration details:
      • Add principals: Enter the service account email (for example, cisco-sdwan-collector-sa@PROJECT_ID.iam.gserviceaccount.com ).
      • Assign roles: Select Storage Object Admin.
    6. Click Save.

    Create Pub/Sub topic

    Create a Pub/Sub topic that Cloud Scheduler will publish to and the Cloud Run function will subscribe to.

    1. In the GCP Console, go to Pub/Sub > Topics.
    2. Click Create topic.
    3. Provide the following configuration details:
      • Topic ID: Enter cisco-sdwan-trigger .
      • Leave other settings as default.
    4. Click Create.

    Create Cloud Run function to collect logs

    The Cloud Run function will be triggered by Pub/Sub messages from Cloud Scheduler to fetch logs from Cisco Catalyst SD-WAN Manager API and write them to GCS.

    1. In the GCP Console, go to Cloud Run.
    2. Click Create service.
    3. Select Function(use an inline editor to create a function).

    4. In the Configuresection, provide the following configuration details:

      Setting Value
      Service name cisco-sdwan-log-collector
      Region Select region matching your GCS bucket (for example, us-central1 )
      Runtime Select Python 3.12or later

    5. In the Trigger (optional)section:

      1. Click + Add trigger.
      2. Select Cloud Pub/Sub.
      3. In Select a Cloud Pub/Sub topic, choose the topic ( cisco-sdwan-trigger ).
      4. Click Save.

    6. In the Authenticationsection:

      1. Select Require authentication.
      2. Check Identity and Access Management (IAM).

    7. Scroll down and expand Containers, Networking, Security.

    8. Go to the Securitytab:

      • Service account: Select the service account ( cisco-sdwan-collector-sa ).

    9. Go to the Containerstab:

      1. Click Variables & Secrets.
      2. Click + Add variablefor each environment variable:
      Variable Name Example Value
      GCS_BUCKET cisco-sdwan-logs-bucket
      GCS_PREFIX cisco-sdwan
      STATE_KEY cisco-sdwan/state.json
      SDWAN_HOST https://sdwan-manager.example.com:8443
      SDWAN_USERNAME chronicle-api
      SDWAN_PASSWORD your-sdwan-password
      LOOKBACK_HOURS 1

    10. Scroll down in the Variables & Secretstab to Requests:

      • Request timeout: Enter 600 seconds (10 minutes).

    11. Go to the Settingstab in Containers:

      • In the Resourcessection:
        • Memory: Select 512 MiBor higher.
        • CPU: Select 1.

    12. In the Revision scalingsection:

      • Minimum number of instances: Enter 0 .
      • Maximum number of instances: Enter 100 (or adjust based on expected load).

    13. Click Create.

    14. Wait for the service to be created (1-2 minutes).

    15. After the service is created, the inline code editorwill open automatically.

    Add function code

    1. Enter mainin the Entry pointfield.

    2. In the inline code editor, create two files:

      • main.py:

          import 
  
 functions_framework 
 from 
  
 google.cloud 
  
 import 
  storage 
 
 import 
  
 json 
 import 
  
 os 
 import 
  
 urllib3 
 import 
  
 urllib.parse 
 from 
  
 datetime 
  
 import 
 datetime 
 , 
 timezone 
 , 
 timedelta 
 import 
  
 time 
 # Disable SSL warnings for self-signed certificates (testing only) 
 urllib3 
 . 
 disable_warnings 
 ( 
 urllib3 
 . 
  exceptions 
 
 . 
 InsecureRequestWarning 
 ) 
 # Initialize HTTP client with timeouts 
 http 
 = 
 urllib3 
 . 
 PoolManager 
 ( 
 timeout 
 = 
 urllib3 
 . 
 Timeout 
 ( 
 connect 
 = 
 10.0 
 , 
 read 
 = 
 60.0 
 ), 
 cert_reqs 
 = 
 'CERT_NONE' 
 , 
 retries 
 = 
 urllib3 
 . 
 Retry 
 ( 
 total 
 = 
 3 
 , 
 backoff_factor 
 = 
 1 
 ) 
 ) 
 # Initialize Storage client 
 storage_client 
 = 
  storage 
 
 . 
  Client 
 
 () 
 # Environment variables 
 SDWAN_HOST 
 = 
 os 
 . 
 environ 
 . 
 get 
 ( 
 'SDWAN_HOST' 
 , 
 '' 
 ) 
 . 
 rstrip 
 ( 
 '/' 
 ) 
 SDWAN_USERNAME 
 = 
 os 
 . 
 environ 
 . 
 get 
 ( 
 'SDWAN_USERNAME' 
 , 
 '' 
 ) 
 SDWAN_PASSWORD 
 = 
 os 
 . 
 environ 
 . 
 get 
 ( 
 'SDWAN_PASSWORD' 
 , 
 '' 
 ) 
 GCS_BUCKET 
 = 
 os 
 . 
 environ 
 . 
 get 
 ( 
 'GCS_BUCKET' 
 , 
 '' 
 ) 
 GCS_PREFIX 
 = 
 os 
 . 
 environ 
 . 
 get 
 ( 
 'GCS_PREFIX' 
 , 
 'cisco-sdwan' 
 ) 
 STATE_KEY 
 = 
 os 
 . 
 environ 
 . 
 get 
 ( 
 'STATE_KEY' 
 , 
 'cisco-sdwan/state.json' 
 ) 
 LOOKBACK_HOURS 
 = 
 int 
 ( 
 os 
 . 
 environ 
 . 
 get 
 ( 
 'LOOKBACK_HOURS' 
 , 
 '1' 
 )) 
 class 
  
 CatalystSDWANAPI 
 : 
  
 """Client for Cisco Catalyst SD-WAN Manager API (formerly vManage).""" 
 def 
  
 __init__ 
 ( 
 self 
 , 
 host 
 , 
 username 
 , 
 password 
 ): 
 self 
 . 
 host 
 = 
 host 
 self 
 . 
 username 
 = 
 username 
 self 
 . 
 password 
 = 
 password 
 self 
 . 
 jsessionid 
 = 
 None 
 self 
 . 
 xsrf_token 
 = 
 None 
 def 
  
 authenticate 
 ( 
 self 
 ): 
  
 """Authenticate using session-based login (j_security_check).""" 
 try 
 : 
 login_url 
 = 
 f 
 " 
 { 
 self 
 . 
 host 
 } 
 /j_security_check" 
 login_data 
 = 
 urllib 
 . 
 parse 
 . 
 urlencode 
 ({ 
 'j_username' 
 : 
 self 
 . 
 username 
 , 
 'j_password' 
 : 
 self 
 . 
 password 
 }) 
 . 
 encode 
 ( 
 'utf-8' 
 ) 
 response 
 = 
 http 
 . 
 request 
 ( 
 'POST' 
 , 
 login_url 
 , 
 body 
 = 
 login_data 
 , 
 headers 
 = 
 { 
 'Content-Type' 
 : 
 'application/x-www-form-urlencoded' 
 }, 
 ) 
 if 
 b 
 '<html>' 
 in 
 response 
 . 
 data 
 or 
 response 
 . 
 status 
 != 
 200 
 : 
 print 
 ( 
 f 
 "Authentication failed: HTTP 
 { 
 response 
 . 
 status 
 } 
 " 
 ) 
 return 
 False 
 # Extract JSESSIONID from Set-Cookie header 
 cookie_header 
 = 
 response 
 . 
 headers 
 . 
 get 
 ( 
 'Set-Cookie' 
 , 
 '' 
 ) 
 for 
 part 
 in 
 cookie_header 
 . 
 split 
 ( 
 ',' 
 ): 
 if 
 'JSESSIONID=' 
 in 
 part 
 : 
 self 
 . 
 jsessionid 
 = 
 part 
 . 
 split 
 ( 
 'JSESSIONID=' 
 )[ 
 1 
 ] 
 . 
 split 
 ( 
 ';' 
 )[ 
 0 
 ] 
 break 
 if 
 not 
 self 
 . 
 jsessionid 
 : 
 print 
 ( 
 "Failed to extract JSESSIONID from response" 
 ) 
 return 
 False 
 # Get XSRF token 
 token_url 
 = 
 f 
 " 
 { 
 self 
 . 
 host 
 } 
 /dataservice/client/token" 
 headers 
 = 
 { 
 'Content-Type' 
 : 
 'application/json' 
 , 
 'Cookie' 
 : 
 f 
 "JSESSIONID= 
 { 
 self 
 . 
 jsessionid 
 } 
 " 
 } 
 response 
 = 
 http 
 . 
 request 
 ( 
 'GET' 
 , 
 token_url 
 , 
 headers 
 = 
 headers 
 ) 
 if 
 response 
 . 
 status 
 == 
 200 
 : 
 self 
 . 
 xsrf_token 
 = 
 response 
 . 
 data 
 . 
 decode 
 ( 
 'utf-8' 
 ) 
 . 
 strip 
 () 
 print 
 ( 
 "Successfully authenticated with Catalyst SD-WAN Manager" 
 ) 
 return 
 True 
 else 
 : 
 print 
 ( 
 f 
 "Failed to get XSRF token: HTTP 
 { 
 response 
 . 
 status 
 } 
 " 
 ) 
 return 
 False 
 except 
 Exception 
 as 
 e 
 : 
 print 
 ( 
 f 
 "Authentication error: 
 { 
 e 
 } 
 " 
 ) 
 return 
 False 
 def 
  
 _get_headers 
 ( 
 self 
 ): 
  
 """Build headers for authenticated API requests.""" 
 return 
 { 
 'Content-Type' 
 : 
 'application/json' 
 , 
 'Accept' 
 : 
 'application/json' 
 , 
 'Cookie' 
 : 
 f 
 "JSESSIONID= 
 { 
 self 
 . 
 jsessionid 
 } 
 " 
 , 
 'X-XSRF-TOKEN' 
 : 
 self 
 . 
 xsrf_token 
 } 
 def 
  
 _build_query 
 ( 
 self 
 , 
 last_epoch_ms 
 = 
 None 
 ): 
  
 """Build a query payload with entry_time filter.""" 
 query 
 = 
 { 
 "query" 
 : 
 { 
 "condition" 
 : 
 "AND" 
 , 
 "rules" 
 : 
 [] 
 }, 
 "size" 
 : 
 10000 
 } 
 if 
 last_epoch_ms 
 : 
 query 
 [ 
 "query" 
 ][ 
 "rules" 
 ] 
 . 
 append 
 ({ 
 "value" 
 : 
 [ 
 str 
 ( 
 last_epoch_ms 
 )], 
 "field" 
 : 
 "entry_time" 
 , 
 "type" 
 : 
 "date" 
 , 
 "operator" 
 : 
 "greater" 
 }) 
 else 
 : 
 query 
 [ 
 "query" 
 ][ 
 "rules" 
 ] 
 . 
 append 
 ({ 
 "value" 
 : 
 [ 
 str 
 ( 
 LOOKBACK_HOURS 
 )], 
 "field" 
 : 
 "entry_time" 
 , 
 "type" 
 : 
 "date" 
 , 
 "operator" 
 : 
 "last_n_hours" 
 }) 
 return 
 query 
 def 
  
 fetch_data 
 ( 
 self 
 , 
 endpoint 
 , 
 last_epoch_ms 
 = 
 None 
 ): 
  
 """Fetch data from a /dataservice endpoint using POST with query body.""" 
 url 
 = 
 f 
 " 
 { 
 self 
 . 
 host 
 } 
 /dataservice/ 
 { 
 endpoint 
 } 
 " 
 headers 
 = 
 self 
 . 
 _get_headers 
 () 
 query 
 = 
 self 
 . 
 _build_query 
 ( 
 last_epoch_ms 
 ) 
 try 
 : 
 response 
 = 
 http 
 . 
 request 
 ( 
 'POST' 
 , 
 url 
 , 
 body 
 = 
 json 
 . 
 dumps 
 ( 
 query 
 ), 
 headers 
 = 
 headers 
 , 
 ) 
 if 
 response 
 . 
 status 
 == 
 200 
 : 
 return 
 json 
 . 
 loads 
 ( 
 response 
 . 
 data 
 . 
 decode 
 ( 
 'utf-8' 
 )) 
 else 
 : 
 print 
 ( 
 f 
 "Failed to get 
 { 
 endpoint 
 } 
 : HTTP 
 { 
 response 
 . 
 status 
 } 
 " 
 ) 
 return 
 None 
 except 
 Exception 
 as 
 e 
 : 
 print 
 ( 
 f 
 "Error fetching 
 { 
 endpoint 
 } 
 : 
 { 
 e 
 } 
 " 
 ) 
 return 
 None 
 def 
  
 load_state 
 ( 
 bucket 
 ): 
  
 """Load the last run timestamp (epoch ms) from GCS state file.""" 
 try 
 : 
 blob 
 = 
 bucket 
 . 
 blob 
 ( 
 STATE_KEY 
 ) 
 if 
 blob 
 . 
 exists 
 (): 
 state_data 
 = 
 json 
 . 
 loads 
 ( 
 blob 
 . 
  download_as_text 
 
 ()) 
 return 
 state_data 
 . 
 get 
 ( 
 'last_run_time' 
 ) 
 except 
 Exception 
 as 
 e 
 : 
 print 
 ( 
 f 
 "Warning: Could not load state: 
 { 
 e 
 } 
 " 
 ) 
 return 
 None 
 def 
  
 save_state 
 ( 
 bucket 
 , 
 epoch_ms 
 ): 
  
 """Save the current run timestamp (epoch ms) to GCS state file.""" 
 try 
 : 
 state_data 
 = 
 { 
 'last_run_time' 
 : 
 epoch_ms 
 , 
 'updated_at' 
 : 
 datetime 
 . 
 now 
 ( 
 timezone 
 . 
 utc 
 ) 
 . 
 isoformat 
 () 
 } 
 blob 
 = 
 bucket 
 . 
 blob 
 ( 
 STATE_KEY 
 ) 
 blob 
 . 
  upload_from_string 
 
 ( 
 json 
 . 
 dumps 
 ( 
 state_data 
 ), 
 content_type 
 = 
 'application/json' 
 ) 
 print 
 ( 
 f 
 "Saved state: last_run_time= 
 { 
 epoch_ms 
 } 
 " 
 ) 
 except 
 Exception 
 as 
 e 
 : 
 print 
 ( 
 f 
 "Warning: Could not save state: 
 { 
 e 
 } 
 " 
 ) 
 def 
  
 upload_to_gcs 
 ( 
 bucket 
 , 
 records 
 , 
 log_type 
 ): 
  
 """Upload log records to GCS as NDJSON.""" 
 if 
 not 
 records 
 : 
 print 
 ( 
 f 
 "No 
 { 
 log_type 
 } 
 records to upload" 
 ) 
 return 
 0 
 dt 
 = 
 datetime 
 . 
 now 
 ( 
 timezone 
 . 
 utc 
 ) 
 object_key 
 = 
 ( 
 f 
 " 
 { 
 GCS_PREFIX 
 } 
 / 
 { 
 log_type 
 } 
 /" 
 f 
 " 
 { 
 dt 
 . 
 strftime 
 ( 
 '%Y/%m/ 
 %d 
 ' 
 ) 
 } 
 /" 
 f 
 " 
 { 
 log_type 
 } 
 _ 
 { 
 dt 
 . 
 strftime 
 ( 
 '%Y%m 
 %d 
 _%H%M%S' 
 ) 
 } 
 .ndjson" 
 ) 
 ndjson 
 = 
 ' 
 \n 
 ' 
 . 
 join 
 ( 
 json 
 . 
 dumps 
 ( 
 record 
 , 
 ensure_ascii 
 = 
 False 
 ) 
 for 
 record 
 in 
 records 
 ) 
 + 
 ' 
 \n 
 ' 
 blob 
 = 
 bucket 
 . 
 blob 
 ( 
 object_key 
 ) 
 blob 
 . 
  upload_from_string 
 
 ( 
 ndjson 
 , 
 content_type 
 = 
 'application/x-ndjson' 
 ) 
 print 
 ( 
 f 
 "Uploaded 
 { 
 len 
 ( 
 records 
 ) 
 } 
  
 { 
 log_type 
 } 
 records to gs:// 
 { 
 GCS_BUCKET 
 } 
 / 
 { 
 object_key 
 } 
 " 
 ) 
 return 
 len 
 ( 
 records 
 ) 
 @functions_framework 
 . 
 cloud_event 
 def 
  
 main 
 ( 
 cloud_event 
 ): 
  
 """ 
 Cloud Run function triggered by Pub/Sub. 
 Fetches audit logs, alarms, and events from Cisco Catalyst SD-WAN Manager 
 API and writes them to GCS as NDJSON files. 
 Args: 
 cloud_event: CloudEvent object containing Pub/Sub message 
 """ 
 print 
 ( 
 f 
 "Starting Cisco Catalyst SD-WAN Manager log collection at 
 { 
 datetime 
 . 
 now 
 ( 
 timezone 
 . 
 utc 
 ) 
 . 
 isoformat 
 () 
 } 
 " 
 ) 
 if 
 not 
 all 
 ([ 
 SDWAN_HOST 
 , 
 SDWAN_USERNAME 
 , 
 SDWAN_PASSWORD 
 , 
 GCS_BUCKET 
 ]): 
 print 
 ( 
 "Error: Missing required environment variables" 
 ) 
 return 
 try 
 : 
 bucket 
 = 
 storage_client 
 . 
  bucket 
 
 ( 
 GCS_BUCKET 
 ) 
 # Load last run timestamp 
 last_run_time 
 = 
 load_state 
 ( 
 bucket 
 ) 
 if 
 last_run_time 
 : 
 print 
 ( 
 f 
 "Resuming from last_run_time= 
 { 
 last_run_time 
 } 
 " 
 ) 
 else 
 : 
 print 
 ( 
 f 
 "No previous state found, collecting last 
 { 
 LOOKBACK_HOURS 
 } 
 hour(s) of logs" 
 ) 
 # Authenticate 
 api 
 = 
 CatalystSDWANAPI 
 ( 
 SDWAN_HOST 
 , 
 SDWAN_USERNAME 
 , 
 SDWAN_PASSWORD 
 ) 
 if 
 not 
 api 
 . 
 authenticate 
 (): 
 print 
 ( 
 "Failed to authenticate with Catalyst SD-WAN Manager" 
 ) 
 return 
 # Current timestamp for state tracking (epoch milliseconds) 
 current_time 
 = 
 int 
 ( 
 datetime 
 . 
 now 
 ( 
 timezone 
 . 
 utc 
 ) 
 . 
 timestamp 
 () 
 * 
 1000 
 ) 
 # Collect audit logs, alarms, and events 
 endpoints 
 = 
 [ 
 ( 
 'audit_logs' 
 , 
 'auditlog' 
 ), 
 ( 
 'alarms' 
 , 
 'alarms' 
 ), 
 ( 
 'events' 
 , 
 'events' 
 ), 
 ] 
 total_records 
 = 
 0 
 for 
 log_type 
 , 
 endpoint 
 in 
 endpoints 
 : 
 try 
 : 
 print 
 ( 
 f 
 "Collecting 
 { 
 log_type 
 } 
 from /dataservice/ 
 { 
 endpoint 
 } 
 ..." 
 ) 
 response_data 
 = 
 api 
 . 
 fetch_data 
 ( 
 endpoint 
 , 
 last_run_time 
 ) 
 if 
 response_data 
 and 
 'data' 
 in 
 response_data 
 : 
 count 
 = 
 upload_to_gcs 
 ( 
 bucket 
 , 
 response_data 
 [ 
 'data' 
 ], 
 log_type 
 ) 
 total_records 
 += 
 count 
 else 
 : 
 print 
 ( 
 f 
 "No 
 { 
 log_type 
 } 
 data returned" 
 ) 
 except 
 Exception 
 as 
 e 
 : 
 print 
 ( 
 f 
 "Error processing 
 { 
 log_type 
 } 
 : 
 { 
 e 
 } 
 " 
 ) 
 continue 
 # Update state 
 save_state 
 ( 
 bucket 
 , 
 current_time 
 ) 
 print 
 ( 
 f 
 "Collection completed. Total records processed: 
 { 
 total_records 
 } 
 " 
 ) 
 except 
 Exception 
 as 
 e 
 : 
 print 
 ( 
 f 
 "Function execution error: 
 { 
 e 
 } 
 " 
 ) 
 raise

      • requirements.txt:

         functions-framework==3.*
google-cloud-storage==2.*
urllib3>=2.0.0

    3. Click Deployto save and deploy the function.

    4. Wait for deployment to complete (2-3 minutes).

    Create Cloud Scheduler job

    Cloud Scheduler will publish messages to the Pub/Sub topic at regular intervals, triggering the Cloud Run function.

    1. In the GCP Console, go to Cloud Scheduler.
    2. Click Create Job.

    3. Provide the following configuration details:

      Setting Value
      Name cisco-sdwan-log-collector-hourly
      Region Select same region as Cloud Run function
      Frequency 0 * * * * (every hour, on the hour)
      Timezone Select timezone (UTC recommended)
      Target type Pub/Sub
      Topic Select the topic ( cisco-sdwan-trigger )
      Message body {} (empty JSON object)

    4. Click Create.

    Schedule frequency options

    Choose frequency based on log volume and latency requirements:

    Frequency Cron Expression Use Case
    Every 5 minutes
    		 */5 * * * * High-volume, low-latency
    Every 15 minutes
    		 */15 * * * * Medium volume
    Every hour
    		 0 * * * * Standard (recommended)
    Every 6 hours
    		 0 */6 * * * Low volume, batch processing
    Daily
    		 0 0 * * * Historical data collection

    Test the integration

    1. In the Cloud Schedulerconsole, find your job.
    2. Click Force runto trigger the job manually.
    3. Wait a few seconds.
    4. Go to Cloud Run > Services.
    5. Click on the function name ( cisco-sdwan-log-collector ).
    6. Click the Logstab.

    7. Verify the function executed successfully. Look for:

       Starting Cisco Catalyst SD-WAN Manager log collection at ...
Successfully authenticated with Catalyst SD-WAN Manager
Collecting audit_logs from /dataservice/auditlog...
Uploaded N audit_logs records to gs://...
Collection completed. Total records processed: N

    8. Go to Cloud Storage > Buckets.

    9. Click on your bucket name.

    10. Navigate to the prefix folder ( cisco-sdwan/ ).

    11. Verify that new .ndjson files were created with the current timestamp.

    If you see errors in the logs:

    • HTTP 401: Check API credentials in environment variables
    • HTTP 403: Verify the user account has required Read permissions for Audit Log, Alarms, and Events
    • Authentication failed: Verify the Catalyst SD-WAN Manager base URL includes the correct port (default 8443 )
    • Missing environment variables: Check all required variables are set

    Configure a feed in Google SecOps to ingest Cisco Catalyst SD-WAN Manager logs

    1. Go to SIEM Settings > Feeds.
    2. Click Add New Feed.
    3. Click Configure a single feed.
    4. In the Feed namefield, enter a name for the feed (for example, Cisco Catalyst SD-WAN Manager logs ).
    5. Select Google Cloud Storage V2as the Source type.
    6. Select Cisco SD-WANas the Log type.

    7. Click Get Service Account. A unique service account email will be displayed, for example:

       chronicle-12345678@chronicle-gcp-prod.iam.gserviceaccount.com

    8. Copy this email address for use in the next step.

    9. Click Next.

    10. Specify values for the following input parameters:

      • Storage bucket URL: Enter the GCS bucket URI with the prefix path:

         gs://cisco-sdwan-logs-bucket/cisco-sdwan/
        • Replace:
          • cisco-sdwan-logs-bucket : Your GCS bucket name.
          • cisco-sdwan/ : Optional prefix/folder path where logs are stored (leave empty for root).

      • Source deletion option: Select the deletion option according to your preference:

        • Never: Never deletes any files after transfers (recommended for testing).
        • Delete transferred files: Deletes files after successful transfer.
        • Delete transferred files and empty directories: Deletes files and empty directories after successful transfer.

      • Maximum File Age: Include files modified in the last number of days (default is 180 days).

      • Asset namespace: The asset namespace .

      • Ingestion labels: The label to be applied to the events from this feed.

    11. Click Next.

    12. Review your new feed configuration in the Finalizescreen, and then click Submit.

    The Google SecOps service account needs Storage Object Viewerrole on your GCS bucket.

    1. Go to Cloud Storage > Buckets.
    2. Click on your bucket name.
    3. Go to the Permissionstab.
    4. Click Grant access.
    5. Provide the following configuration details:
      • Add principals: Paste the Google SecOps service account email.
      • Assign roles: Select Storage Object Viewer.

    6. Click Save.

    UDM mapping table

    Log Field UDM Mapping Logic
    Tunnel_id_label
    		additional.fields Merged
    additional_tag
    		additional.fields Merged
    count_label
    		additional.fields Merged
    dst_vrf_label
    		additional.fields Merged
    logfeature_label
    		additional.fields Merged
    logmodule_label
    		additional.fields Merged
    meta_sequenceId_label
    		additional.fields Merged
    msg_label
    		additional.fields Merged
    qfp_label
    		additional.fields Merged
    result_label
    		additional.fields Merged
    rsa_sha256_label
    		additional.fields Merged
    rsa_type_label
    		additional.fields Merged
    sequence_label
    		additional.fields Merged
    src_vrf_label
    		additional.fields Merged
    tenant_vpn_id_label
    		additional.fields Merged
    thread_label
    		additional.fields Merged
    tos_label
    		additional.fields Merged
    unknown_tenant_label
    		additional.fields Merged
    vlan_id_label
    		additional.fields Merged
    vpn_id_label
    		additional.fields Merged
    description_1
    		extensions.auth.type Mapped: (?i)closed → AUTHTYPE_UNSPECIFIED
    msg1
    		extensions.auth.type Mapped: authenticated → AUTHTYPE_UNSPECIFIED
    msgs
    		extensions.auth.type Mapped: (?i)success → AUTHTYPE_UNSPECIFIED
    prod_type
    		extensions.auth.type Mapped: (?i)LOGOUT → AUTHTYPE_UNSPECIFIED
    host_name
    		intermediary.asset.hostname Directly mapped
    host_name
    		intermediary.hostname Directly mapped
    inter_host
    		intermediary.hostname Directly mapped
    logmsg
    		metadata.description Directly mapped
    message_value
    		metadata.description Directly mapped
    msgs
    		metadata.description Directly mapped
    date_time
    		metadata.event_timestamp Parsed as ISO8601
    time
    		metadata.event_timestamp Parsed as ISO8601
    time_t
    		metadata.event_timestamp Parsed as ISO8601
    timestamp
    		metadata.event_timestamp Parsed as ISO8601
    description_1
    		metadata.event_type Mapped: (?i)closed → USER_LOGOUT
    has_principal
    		metadata.event_type Mapped: true → NETWORK_CONNECTION , true → STATUS_UPDATE
    has_principal_user
    		metadata.event_type Mapped: true → USER_UNCATEGORIZED
    msg1
    		metadata.event_type Mapped: authenticated → USER_LOGIN
    msgs
    		metadata.event_type Mapped: (?i)success → USER_LOGIN
    prod_type
    		metadata.event_type Mapped: (?i)LOGOUT → USER_LOGOUT
    prod_type
    		metadata.product_event_type Directly mapped
    log_id
    		metadata.product_log_id Directly mapped
    logid
    		metadata.product_log_id Directly mapped
    application_protocol
    		network.application_protocol Mapped: (?i)SSH → SSH
    message
    		network.application_protocol Mapped: (?i)SSH → SSH , (?i)netconf → NETCONF , (?i)dhcp → DHCP
    type1
    		network.dhcp.type Mapped: DHCPDISCOVER → DISCOVER
    message
    		network.ip_protocol Mapped: (?i)tcp → TCP
    network_protocol
    		network.ip_protocol Directly mapped
    bytes
    		network.sent_bytes Directly mapped
    session_id
    		network.session_id Directly mapped
    network_host
    		network.tls.cipher Directly mapped
    hostname
    		principal.asset.hostname Directly mapped
    host
    		principal.asset.ip Merged
    initiator_ip
    		principal.asset.ip Merged
    ip
    		principal.asset.ip Merged
    ipaddress
    		principal.asset.ip Merged
    logusersrcip
    		principal.asset.ip Merged
    peer_ip
    		principal.asset.ip Merged
    principal_ip
    		principal.asset.ip Merged
    principal_ip1
    		principal.asset.ip Merged
    proxy_host
    		principal.asset.ip Merged
    src_ip
    		principal.asset.ip Merged
    system_ip
    		principal.asset.ip Merged
    addr
    		principal.hostname Directly mapped
    hostname
    		principal.hostname Directly mapped
    host
    		principal.ip Merged
    initiator_ip
    		principal.ip Merged
    ip
    		principal.ip Merged
    ipaddress
    		principal.ip Merged
    logusersrcip
    		principal.ip Merged
    peer_ip
    		principal.ip Merged
    principal_ip
    		principal.ip Merged
    principal_ip1
    		principal.ip Merged
    proxy_host
    		principal.ip Merged
    src_ip
    		principal.ip Merged
    system_ip
    		principal.ip Merged
    initiator_port
    		principal.port Directly mapped
    port
    		principal.port Directly mapped
    ports
    		principal.port Directly mapped
    principal_port
    		principal.port Directly mapped
    principal_port1
    		principal.port Directly mapped
    src_port
    		principal.port Directly mapped
    process_path
    		principal.process.file.full_path Directly mapped
    parent_pid
    		principal.process.parent_process.pid Directly mapped
    pid
    		principal.process.pid Directly mapped
    process_label
    		principal.resource.attribute.labels Merged
    process_name_label
    		principal.resource.attribute.labels Merged
    loguser
    		principal.user.userid Directly mapped
    user1
    		principal.user.userid Directly mapped
    user_id
    		principal.user.userid Directly mapped
    username
    		principal.user.userid Directly mapped
    action
    		security_result.action Merged
    message
    		security_result.action Mapped: (?i)(succeeded/accounting start/open/occurred/update/successfully/success) → `acti...
    classification
    		security_result.category_details Merged
    msg1
    		security_result.description Directly mapped
    Malware_label
    		security_result.detection_fields Merged
    direction_label
    		security_result.detection_fields Merged
    egress_interface_label
    		security_result.detection_fields Merged
    ingress_interface_label
    		security_result.detection_fields Merged
    log_prefix_label
    		security_result.detection_fields Merged
    log_reason_label
    		security_result.detection_fields Merged
    packet_label
    		security_result.detection_fields Merged
    policy_label
    		security_result.detection_fields Merged
    port_label
    		security_result.detection_fields Merged
    protocol_label
    		security_result.detection_fields Merged
    proxy_port_label
    		security_result.detection_fields Merged
    sent_bytes_1_label
    		security_result.detection_fields Merged
    sent_bytes_2_label
    		security_result.detection_fields Merged
    tty_label
    		security_result.detection_fields Merged
    type_label
    		security_result.detection_fields Merged
    udp_packets_label
    		security_result.detection_fields Merged
    priority
    		security_result.severity Mapped: 1 → LOW
    description_1
    		security_result.summary Directly mapped
    dst_ip
    		target.asset.ip Merged
    ipadres
    		target.asset.ip Merged
    logdeviceid
    		target.asset.ip Merged
    responder_ip
    		target.asset.ip Merged
    target_ip
    		target.asset.ip Merged
    target_ip1
    		target.asset.ip Merged
    filename
    		target.file.names Merged
    dst_ip
    		target.ip Merged
    ipadres
    		target.ip Merged
    logdeviceid
    		target.ip Merged
    responder_ip
    		target.ip Merged
    target_ip
    		target.ip Merged
    target_ip1
    		target.ip Merged
    dst_port
    		target.port Directly mapped
    prts
    		target.port Directly mapped
    responder_port
    		target.port Directly mapped
    target_port
    		target.port Directly mapped
    target_port1
    		target.port Directly mapped
    filetype
    		target.process.file.mime_type Directly mapped
    parent_identifier_label
    		target.resource.attribute.labels Merged
    specific_identifer_label
    		target.resource.attribute.labels Merged
    target_name
    		target.resource.name Directly mapped
    instance_id
    		target.resource.product_object_id Directly mapped
    target_username
    		target.user.userid Directly mapped
    user
    		target.user.userid Directly mapped
    N/A
    		 extensions.auth.type Constant: AUTHTYPE_UNSPECIFIED
    N/A
    		 metadata.event_type Constant: USER_LOGIN
    N/A
    		 network.application_protocol Constant: SSH
    N/A
    		 network.dhcp.type Constant: DISCOVER
    N/A
    		 network.ip_protocol Constant: TCP
    N/A
    		 security_result.severity Constant: LOW
    rsa_type
    		event.idm.read_only_udm.additional.fields Mapped from changelog
    sha_256
    		event.idm.read_only_udm.additional.fields Mapped from changelog
    NETCONF
    		event.idm.read_only_udm.network.application_protocol Mapped from changelog
    TCP
    		event.idm.read_only_udm.network.ip_protocol Mapped from changelog
    DHCP
    		event.idm.read_only_udm.network.application_protocol Mapped from changelog
    username1
    		target.user.userid Mapped from changelog
    security_result.action
    		ALLOW Mapped from changelog
    ip_1
    		principal.ip Mapped from changelog
    ip_2
    		target.ip Mapped from changelog
    port_1
    		principal.port Mapped from changelog
    port_2
    		target.port Mapped from changelog
    message_1
    		metadata.description Mapped from changelog
    malware
    		security_result.detection_fields Mapped from changelog

    Change Log

    View the Change Log for this parser

    Need more help? Get answers from Community members and Google SecOps professionals.

    Create a Mobile Website
    View Site in Mobile | Classic
    Share by: