AT&T Community Forums

BGW210-700 drops all incoming 6in4 packets?

I'm trying to set up a Hurricane Electric IPv6 tunnel using an OPNsense system behind a BGW210-700 RG, but it turns out that despite disabling the packet filter and pretty much every other firewall option in the RG, it drops all incoming 6in4 (IP protocol 41) packets. The logs list the reason as "Unknown 6in4 packet." All other packets, including outgoing 6in4 ones, pass without issue. Just wanted to see if anyone had more success, and if so, what kind of settings you have for the RG. Thanks!

Responses

Accepted Solution

ATTHelp

Community Support

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231.7K Messages

10 days ago

Thanks for reaching us @rand0nness.

We understand your concern with regard to setting up a Hurricane Electric IPv6 tunnel using OPNsense behind a BGW210-700 RG. Let's point you in the right direction.

Setting up AT&T gateway using your OPNsense firewall, you can set up port forwarding (NAT) to allow traffic from the Internet to reach your internal network.

You can do so by checking out our article Set up port forwarding for BGW210.

If you have any other questions, please feel free to write back.

Thank you.
David, AT&T Community Specialist.

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Official Solution

thechef1

Tutor

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416 Messages

10 days ago

The above instructions from ATTHelp are close but may be missing a key piece of information.

In Step 6 of the link provided, you want to select the "IPv6 Tunnel (6 in 4)" service.

(edited)

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rand0nness

2 Messages

10 days ago

Thanks! I forgot to mention that the Allocation Mode for IP Passthrough is set to Passthrough, so I cannot add the "IP Tunnel (6 in 4)" service, as the "Needed by Device" input box says "No Devices Found." When I click "Add," the error message "A required setting is empty" appears. I am curious, though, whether this works without passthrough mode. It would be rather strange because it means passthrough mode actually blocks packets that can be allowed in non-passthrough mode.

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ATTHelp

Community Support

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231.7K Messages

10 days ago

Hi @rand0nness, thank you for your response.

After reviewing your concern and trying to resolve through the Community Forums, it looks like you may need more account specific support. To assist you best, we encourage you to review our Contact Us page (https://www.att.com/support/contact-us/) to identify what method you’d prefer to reach out for this account level help. You can call, chat, or reach out via social media and we can review your specific issue and provide you support. We’re sorry we weren’t able to resolve your concern directly in the forums, but let us know if we can assist with anything else.

Thank you for contacting AT&T Community Forums.

Jasmine, AT&T Community Specialist

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