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ePO and agent handler trouble when there is a firewall with NAT or VPN configured

Hello,

I'm having problems in the comminication of the ePO and McAfee agent handler where there is a firewall with NAP and VPN funcionality enabled. I cannot wakeup nor deploy Mcafee products 'endpoint protection platform' and 'Threat prevention' from the ePO server to the McaFee agent handler.

McaFee KBA https://kc.mcafee.com/corporate/index?page=content&id=KB58818

explains the issue; the problem is that when the agent is deployed in the agent handler, it sends back to the ePO server the internal IP address of the agent handler, making it imposible from the ePO to talk with the agent handler. I've read that there are workarounds to solve (or partially solve)  this issue:

1.- Deploy the McAfee products 'protection platform' and  'threat prevention' from the ePO to the agent handler by using a scheduled task and assign the task to the agent handler. I've checked this workaround and it seems it doesn't work. The agent of the agent handler server should go to the ePO to execute this scheduled task that is assigned to it,  but I dont see any trace in the McAfee log file. I see ther are traces of updating policies, etc. but there are not any trace of executing a task.

2.- Use DXL communication infraestructure. My questions here are; a) from where I can get (or download) this software?,  is it easy to deploy and mantein?. 

Mant thanks in advanced.

 

5 Replies
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McAfee Employee
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Message 2 of 6

Re: ePO and agent handler trouble when there is a firewall with NAT or VPN configured

Hello @Manuel3 

Thanks for your post.

While using the schedule task what is the exact error you are seeing in the server.log at server side and error in client machine McAfee agent logs.

2) Software is available at Product download site.

you can download it and install it.

https://docs.mcafee.com/bundle/data-exchange-layer-5.0.x-installation-guide/page/GUID-E48337F3-738B-...

https://docs.mcafee.com/bundle/data-exchange-layer-5.0.x-installation-guide/page/GUID-450CA8C5-0824-...

https://docs.mcafee.com/bundle/data-exchange-layer-4.1.0-product-guide-epolicy-orchestrator/page/GUI...

above are the few links for dxl broker.

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Re: ePO and agent handler trouble when there is a firewall with NAT or VPN configured

Hello,

The agent handler has client task assigned for product deployment:
Task to schedule:
Product: McAfee Agent
Task type: Product Deployment
Tags: Send this task to all computers in the system tree group
Schedule status: Enabled
Schedule Type: Daily
Start time: 2:50 PM

Where should I look?, at ePO server log or at the agent handler log? . I don't find any trace in any of the log files at the ePO server and agent handler for this scheduled task.
The McaFee agent in the agent handler should contact the ePO server for scheduled tasks assigind to it and then execute the task?......

Regarding the links these points to the DXL documentation, but what I need is the DXL installer, that is the .iso file.

Thanks.

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McAfee Employee
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Message 4 of 6

Re: ePO and agent handler trouble when there is a firewall with NAT or VPN configured

Hello @Manuel3 

Thanks for your response.

The DXL file is available on the product download site.

You need to check the masvc and mcscript_Deploy.log in the client machine and check the server.log at ePO/AH side.

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Re: ePO and agent handler trouble when there is a firewall with NAT or VPN configured

Hello,

I dont see any trace in the log files ePO/AH (masvc.log, server_*.log) regarding the scheduled task.

I'm thinking the client task, either with 'run clienta task now' or 'scheduled' are always started from the agent in ePO and NOT from the agent in the agent handler,  If this is the case it will never work because the ePO has the internal IP address (it shows in ePO system tree) and not the external IP address published by the firewall (NAT). That is ePO cannot talk with the agent handler using the internal iIP address.

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Message 6 of 6

Re: ePO and agent handler trouble when there is a firewall with NAT or VPN configured

Agents get assigned tasks from epo or agent handler, whichever system they are talking to.  They do not get tasks from other agents, just from the epo/ah servers.  You first need to ensure that the clients are able to talk to either epo or the agent handler.  The masvc log on the client will show if communication is failing or not and what the specific errors are.  The agent handler, if in dmz, has to be able to resolve the fqdn of the epo and sql servers to function properly and have the required ports open on firewalls per KB66797.  If the agent is failing to communicate, it can't get tasks.  So you first need to determine whether communication is successful or not.  If so, then you can use this to troubleshoot deployment issues.

https://community.mcafee.com/t5/ePolicy-Orchestrator-ePO/SOLVED-HOW-TO-TROUBLESHOOT-CLIENT-UPDATE-DE...

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