No internet through Client Bridge

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Raptor2213
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Joined: 09 Jun 2022
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PostPosted: Thu Jun 09, 2022 17:20    Post subject: No internet through Client Bridge Reply with quote
I just recently purchased a Netgear R6700, updated it to DD-WRT and set it up using the guides. I'm able to access the device on my local network, and the device is able to do an internet speed test, however, any devices connected to the LAN ports do not connect to the internet - even if their DNS is manually set.

I've tried the router setup both ways, with the local DNS all zeroes, or with the local DNS being my primary router - it doesn't seem to make a difference.

Firewall is fully disabled.

I read through various forum posts of using having similar issues but none of the solutions for those seemed to help in my case.

Firmware: DD-WRT v3.0-r49113 std (06/07/22)
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the-joker
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PostPosted: Thu Jun 09, 2022 18:18    Post subject: Reply with quote
Setup screenshots please.

and welcome to the forums. Wink

On another note, bridges are not the end all and be all of networking, routing should be used instead.

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Raptor2213
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PostPosted: Thu Jun 09, 2022 19:23    Post subject: Reply with quote
the-joker wrote:
Setup screenshots please.


I'm trying to avoid running a network cable through my ceiling, and it's too close to an AP for mesh to work properly.



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kernel-panic69
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PostPosted: Thu Jun 09, 2022 19:41    Post subject: Reply with quote
You don't need to enter local DNS. This is the wiki for Broadcom (R6700 v1 & v3).

https://forum.dd-wrt.com/wiki/index.php/Client_Bridge

And there's other screenshots... also, Broadcom doesn't support mesh, but perhaps MediaTek does. If you have a v2, then this thread needs to be moved to Ralink forum and you need to use the Client Bridged (non-Broadcom) wiki.

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Raptor2213
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PostPosted: Thu Jun 09, 2022 19:48    Post subject: Reply with quote
kernel-panic69 wrote:
You don't need to enter local DNS. This is the wiki for Broadcom (R6700 v1 & v3).

https://forum.dd-wrt.com/wiki/index.php/Client_Bridge

And there's other screenshots... also, Broadcom doesn't support mesh, but perhaps MediaTek does. If you have a v2, then this thread needs to be moved to Ralink forum and you need to use the Client Bridged (non-Broadcom) wiki.


It's a v3.
As mentioned in the original post, I've tried it both ways - with the DNS being 0.0.0.0 and with it being set to my primary router. No change.
kernel-panic69
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PostPosted: Thu Jun 09, 2022 21:28    Post subject: Reply with quote
Filter multicast should still be checked on the Security -> Firewall page; however, there is an anomaly that the check in the box disappears on newer releases. So, you have to check that it is still "checked" via telnet/ssh:
Code:
nvram show | grep block_multicast

If it is set to 0, then you need to set it to 1
Code:
nvram set block_multicast=1
nvram commit
reboot

Outside of that, I don't think Broadcom has a gateway input on the wireless interface that is set as Client Bridge, but that is the *only* other thing I can think of to check. There's others running CB on Broadcom ARM that should be able to further troubleshoot with you. But again, all applicable screenshots would help Wink

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Raptor2213
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Joined: 09 Jun 2022
Posts: 19

PostPosted: Thu Jun 09, 2022 21:37    Post subject: Reply with quote
kernel-panic69 wrote:
Filter multicast should still be checked on the Security -> Firewall page; however, there is an anomaly that the check in the box disappears on newer releases. So, you have to check that it is still "checked" via telnet/ssh:
Code:
nvram show | grep block_multicast

If it is set to 0, then you need to set it to 1
Code:
nvram set block_multicast=1
nvram commit
reboot


SSH Management is disabled and greyed out.

I've supplied screenshots of everything I've been asked to. Is there something else you need to see?
kernel-panic69
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PostPosted: Thu Jun 09, 2022 22:15    Post subject: Reply with quote
What is enabled on the Services -> Services tab? The Administration -> Management tab does not apply here Rolling Eyes

You should consider reading through the onboard help files in the firmware and click through the entire webUI... since it's quite apparent that you're not familiar with this firmware.

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Raptor2213
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Joined: 09 Jun 2022
Posts: 19

PostPosted: Thu Jun 09, 2022 22:53    Post subject: Reply with quote
kernel-panic69 wrote:
What is enabled on the Services -> Services tab? The Administration -> Management tab does not apply here Rolling Eyes

You should consider reading through the onboard help files in the firmware and click through the entire webUI... since it's quite apparent that you're not familiar with this firmware.


Not sure where you get that impression. I've actually used this firmware off-and-on for years. It has, however changed a little bit since I used it back in the day.
Looking at the KB was my first step. My second step was browsing through a dozen similar posts and attempting suggested troubleshooting for their issues.

Here is my services tab:



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bushant
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PostPosted: Thu Jun 09, 2022 23:05    Post subject: Reply with quote
I have never setup CB for obvious reasons but
Seems to me local IP cannot be /24
as this encompasses the whole subnet.

And point 8 in CB instructions
Quote:
Go to Services tab and disable DNSMasq


https://www.ipaddressguide.com/cidr#range


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Raptor2213
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Joined: 09 Jun 2022
Posts: 19

PostPosted: Thu Jun 09, 2022 23:28    Post subject: Reply with quote
bushant wrote:

And point 8 in CB instructions
Quote:
Go to Services tab and disable DNSMasq


I cannot disable Dnsmasq. Every time I apply the change, it's checked again after I apply the change.

Also, the instructions do not say to disable DNSMasq, they say:
Quote:
Uncheck "Use DNSMasq for DNS", "DHCP-Authoritative", "Forced DNS Redirection"


What should the local IP be? As you have already observed, the Client Bridge article isn't exactly accurate/up-to-date.
bushant
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PostPosted: Fri Jun 10, 2022 0:03    Post subject: Reply with quote
Thinking again that /24 is correct (or /32).

Those options are on the Setup->Basic Setup page.

Raptor2213
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Joined: 09 Jun 2022
Posts: 19

PostPosted: Fri Jun 10, 2022 0:15    Post subject: Reply with quote
bushant wrote:
Thinking again that /24 is correct (or /32).

Those options are on the Setup->Basic Setup page.



dnsmasq won't disable. Sounds like that's likely my issue there. Any ideas on how to disable it? I've tried disabling it several times already and it keeps turning itself back on.
bushant
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Joined: 18 Nov 2015
Posts: 2029

PostPosted: Fri Jun 10, 2022 0:31    Post subject: Reply with quote
Have you reset to defaults after installing DD-WRT?

Administration->Factory Defaults Restore Factory Defaults

Or nvram erase && reboot from ssh/telnet
Raptor2213
DD-WRT Novice


Joined: 09 Jun 2022
Posts: 19

PostPosted: Fri Jun 10, 2022 0:36    Post subject: Reply with quote
bushant wrote:
Have you reset to defaults after installing DD-WRT?

Administration->Factory Defaults Restore Factory Defaults

Or nvram erase && reboot from ssh/telnet


Yes, when I did the second flash, I reset to default after flashing.
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