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configure transparent router mode


I'm deploying a single Web gateway 7 with router transparent mode. But client cannot access to internet. Please see attachment and help me check the problem.

Thanks and Regards,

15 Replies
McAfee Employee MSchneider
McAfee Employee
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Message 2 of 16

Re: configure transparent router mode


disable IPSpoofing in the Porxy section. It won't work in your environment from what I see, as it creates an asynchronous routing.



Michael Schneider
Lead Product Manager for Web Protection
Level 7
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Message 3 of 16

Re: configure transparent router mode

Hi, I tried doing the same step from what he shown and what you recommend, but the users still don't have any internet connection.

Is there anything that I missed?

Level 12
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Message 4 of 16

Re: configure transparent router mode

Have solution for this? Thanks!

Re: configure transparent router mode

What is solution for this question?

Re: configure transparent router mode

If you guys went though this guide, followed michael_schneider's instruction "disable IPSpoofing in the Porxy section" and still no luck.
Please check your network part.

Best of luck.

Re: configure transparent router mode

Anyone found solution to the problem?

I am facing the same problem, and I can not find documentation or guidance on the subject.

My post about it in the community

Level 17
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Message 8 of 16

Re: configure transparent router mode


the problem you encounter might be related to a wrong configuration of any network device on MWGs path. The majority of "transparent router" problems due to the setup are caused by missing routes. It will be pretty hard to provide any guidance to get the routing fixed in you environment without having any kind of information such as network diagrams or packet captures.

As mentioned in the thread you want to start troubleshooting by looking at default gateway MWG uses. In many cases this device does not know the network MWG has routed to the default gateway and so the packets cannot go back to MWG and to the client. This is something you only see when looking into the network traffic.

If you need more specific assistance for your case please provide some more information about your network of get in touch with support.



Re: Re: configure transparent router mode

Ok Andre,

Thank you for the help, I'll spend more data.

I tried to solve the problem with the McAfee support more failed to yet.

[Internet] <----> --- eth0 [MWG] eth1  ---- ---- [Est. Client]


Ping ----> ok

Ping ----> not responding

Ping ----> not responding

Ping ----> Internet ok

Ping ---> not responding

Attach files

The catch was held simultaneously in the client station and the MWG.

Does anyone have a walkthrough transparent router impementação to see if I messed up.

Level 17
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Message 10 of 16

Re: configure transparent router mode


can you let me know what the default gateway is configured on MWG?

I am a little confused about this:

Ping ----> not responding

According do what you provided those are the IP addresses of eth0 and eth1 of the MWG. Does this mean if you SSH into MWG you cannot ping both IP addresses?

From what I saw so far it seems the packets hit MWG but MWG does not forward them. You can easily notice that for the DNS traffic... the traffic hits MWG but nothing happens. Usually you should see MWG forward that traffic to its default gateway.

So can you let me know:

- the default GW of MWG

- the value of "cat /proc/sys/net/ipv4/ip_forward" (execute via SSH on appliance)



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