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ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?

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ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?

ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago
Tags: #Double NAT
Model: Deco BE63  
Hardware Version:
Firmware Version: 1.0.5

I bought the Deco routers to replace my aging Orbi routers which I had switched to being access points in the years past because they kept locking up. 

 

My goal with this purchase was to use the Deco as my true router so I can have parental controls and change my DNS to an internal machine (PiHole) to block ads on the network.(The BGW320 does not allow custom DNS servers) 

 

The problem I am facing is that the Deco router is not being given a true external IP address from the ATT Router, the "IP Passthrough" function does not appear to actually do anything. 

 

On the BGW I have changed the following

1) disabled wifi

2) Turned off all firewall functions

3) Disabled packet filters 

4) Enabled IP Passthrough

 

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The Deco is still being served up a 192.168 IP address from the ATT router. Which is causing network slowness and the dreaded double NAT

 

Things that stand out

1) If you look online about this.... half of the posts say it's easy just set up IP passthrough. The other half say it's not possible. 

2) I believe routers have 2 MAC addresses? The sticker on the bottom of the Deco state that the MAC address ends in "50" but in the BGW320 it sees it ending in "51". I've tried both. neither seem to work

 

Has anyone actually been able to get this to work? Or is it time to give up and return these Deco routers? 

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#1
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19 Reply
Re:ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago
Updated the firmware to 1.1 and it didn't help.
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#2
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Re:ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago
I think I got it! I enabled "WAN Unicast" and suddenly I got an external IP address. I'm almost don't believe it.... not sure what the setting truly does but it did something.
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#3
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Re:ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago

  @JDThreeee 

 

Update: this seemed to only be a temporay fix.... for some reason I ended up with an internal IP address again.

 

 

Also had issues with hardwired connection speeds. My xbox was getting 10Mb/s down and 650Mb/s up, very odd. 

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#4
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Re:ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago

  @JDThreeee Did you ensure the MAC address of the Deco is identical to the "Passthrough fixed MAC address" configured on the BGW?

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#5
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Re:ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago
What is odd, is that the MAC address on the bottom of the router does not match the mac address seen by the ATT Router. I did try to manually type in the Mac address that is on the bottom of the router when I originally set this up but didn't have any luck. I may have to try it again.
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#6
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Re:ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago

  @JDThreeee 

Via the "MAC Clone" setting in the Deco app, you can control the MAC address used by the Deco when it obtains its IP address from the modem.

 

I believe the default value is the MAC address on the bottom of the router, plus 1.

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#7
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Re:ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago

  @yves_b "I believe the default value is the MAC address on the bottom of the router, plus 1." That makes a LOT of sense, that was one of the MACs I saw was 50 vs 51. 

 

So when I use the clone mac address function on the Deco, should I be using that  "+1" address? Or should I be specifying the MAC address on the ATT router? 

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#8
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Re:ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago

  @JDThreeee I believe "...51" should work.

 

Cloning the MAC is useful when your ISP expects a given MAC address.  If you want to try that, you can specify "any" MAC address, provided it is not used by anything else in your config.

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#9
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Re:ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago - last edited 2 weeks ago

So,

  • I set the MAC address clone on the Deco to the mac address that is printed on the bottom of the +1 (....:51)  
  • Put that mac address into the IP Passthrough of the ATT Router.
  • Turned off all firewall settings on the ATT router.
  • Restarted both devices.
  • Still getting in internal IP.
  • Enabled "WAN Unicast" on the Deco
  • Rebooted Deco
  • Still getting an internal IP address on the deco router for it's internet IP
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#10
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Re:ATT Fiber BGW320 - Has anyone truly been able to get IP Passthrough to work?
2 weeks ago
New update Enabled "IPv6" under the Internet Settings of the Deco. Rebooted the Deco router.... and success, An external IP! wonder how long this will last or how well this will perform
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#11
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Helpful: 1

Views: 576

Replies: 19

Tags

Double NAT
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