Question about using dd-wrt on EA6500v2

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ALX1S
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Joined: 02 May 2020
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PostPosted: Sun May 03, 2020 16:40    Post subject: Question about using dd-wrt on EA6500v2 Reply with quote
Hello guys,

I am new to this forum, I have wanted to start playing with router´s os for a while, but never had to, because always solve things with a Mikrotik Router that have inside of my network and Linksys as border router.

Today I read that is possible to run some linux command and really love to know my real time bandwidth usage, and that really call my attention. I have a EA6500 v2 but started testing (today) with an old E900 and everything work perfect.

I read that there are some problems on EA6500 related with high values of NVRAM (themitch´s great posts: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=283136)

Now my questions are, did someone else flash their EA6500v2? is it stable? did you try running Airodump?

I believe that default stock firmware is nice and stable, but hate to have issues with DHCP´s DNS configuration and work with a black box....

Thanks,

Sorry if there are weird expressions, eng is my second language.

Alex
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egc
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PostPosted: Sun May 03, 2020 17:51    Post subject: Reply with quote
Welcome to the forum start here:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087

That will lead you via the supported devices page to the install guide:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320463

_________________
Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
kernel-panic69
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Joined: 08 May 2018
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Location: Texas, USA

PostPosted: Sun May 03, 2020 18:19    Post subject: Reply with quote
It is so awesome to find out about arbitrary executive decision wiki edits. The linked article in the OP is the original EA6500v2 install guide. And we have not answered the questions that the OP had yet.
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ALX1S
DD-WRT Novice


Joined: 02 May 2020
Posts: 13

PostPosted: Wed May 06, 2020 18:50    Post subject: Reply with quote
egc wrote:
Welcome to the forum start here:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087

That will lead you via the supported devices page to the install guide:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320463


Hello Egc, thanks for your reply,

I already read the first link, and the second is related with EA6700, and I do have EA6500 the one I saw that has some problems with the NVRAM with DD-wrt, and regarding a comment on the post quoted, Advanced Tomato appears to do not have that issue.

Sorry for asking probably silly questions, but i am afraid of briking my main gateway router cause i already saw some weird responses on the E900 where i start testing.

Thanks.

Alex
egc
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Joined: 18 Mar 2014
Posts: 12812
Location: Netherlands

PostPosted: Wed May 06, 2020 19:07    Post subject: Reply with quote
The EA6700 and EA6500v2 are identical.

It has nothing to do with EA series linksys.

The EA6500, EA6700 and EA6900 all suffer from the 32k nvram problem.

I cannot comment on Tomato but I doubt they solved this.
The way to mitigate that is described in the instructions.
The only real way is using an alternate CFE like I have done for my EA6900, see my signature at the bottom of this page but necessary it is not.

The instructions seems pretty straightforward.
But I do not have this router so I can only point you to the instructions.

_________________
Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
kernel-panic69
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PostPosted: Wed May 06, 2020 19:17    Post subject: Reply with quote
You can always also check FreshTomato, which now has advanced themes that are pretty sharp. Wondering if the EA6500 can stand using the XWRT-Vortex CFE without issue, I don't recall of the top of my head if that is one of the ones that doesn't play nice with DD-WRT if you use the custom CFE.

ASUSWRT Merlin Build 384.5 or later ON Linksys EA6900 or EA6700

XVortex or AdvancedTomato on EA6900 v1/v1.1 without 32k bug (renew)

EDIT: That's why I couldn't post, you beat me to it, @egc! Razz

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jwh7
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PostPosted: Wed May 06, 2020 21:45    Post subject: Reply with quote
kernel-panic69 wrote:
It is so awesome to find out about arbitrary executive decision wiki edits.
I presume that is referring to me. Cool Ya, after my cleanup of the R6400v1, R6400v2 / R6700v3 wiki pages a couple weeks ago, I starting cleaning up the EA6xx0 stuff but it became a huge headache. Then work got busy, and then house/yard spring stuff also started...then I forgot about it. :-/

Anyway, I've spent the past couple hours sorting it all out. The 'EA6300V1' points to the EA6400 (since it is one), and the EA6300 wiki now covers the true 'EA6300' single-core variant and all the other BCM47081A0 models that use EA6350 firmware. EA6{5,7}00 stuff is in a table now, to show the links and forum threads. \o/

https://wiki.dd-wrt.com/wiki/index.php/Supported_Devices#Linksys_.28Wireless_a.2Fb.2Fg.2Fn.2Fac.29
https://forum.dd-wrt.com/wiki/index.php/Linksys_EA6300
https://forum.dd-wrt.com/wiki/index.php/Linksys_EA6400
https://forum.dd-wrt.com/wiki/index.php/Linksys_EA6700

I still plan to update some of the generic thread links to post-specific ones, but I think this is a big improvement.

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kernel-panic69
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PostPosted: Wed May 06, 2020 22:28    Post subject: Reply with quote
I may ping you after I clean up that EA6350 mess since I don't know if the link will transfer. The V1 and V2 are all jumbled into one mess of a thread. But anyway, thanks for the follow-up Cool
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ALX1S
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Joined: 02 May 2020
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PostPosted: Thu May 07, 2020 3:47    Post subject: Reply with quote
egc wrote:
The EA6700 and EA6500v2 are identical.

It has nothing to do with EA series linksys.

The EA6500, EA6700 and EA6900 all suffer from the 32k nvram problem.

I cannot comment on Tomato but I doubt they solved this.
The way to mitigate that is described in the instructions.
The only real way is using an alternate CFE like I have done for my EA6900, see my signature at the bottom of this page but necessary it is not.

The instructions seems pretty straightforward.
But I do not have this router so I can only point you to the instructions.


Oh man, i am sorry about my ignorance, did not know that both models was also the same. I took a look into the post, and they refers that stock version shuould be 1.40, and like him is running 1.41 on mine, should i download 1.40 for 6700 with out any issue? (for 6500v2 the only option for downloading is 1.41) Smile

I am really not encoraged on using advanced tomato cause as far as i saw NVRAM needs to be written, and that cause a non reverse point to standart. And saw that dd has more features.

Thanks guys, if you happen to have any other tip, please let me know. I am just experirnced with devices with direct access to bios and save my potatoes if its necessary.

thanks you one more time.
ALX1S
DD-WRT Novice


Joined: 02 May 2020
Posts: 13

PostPosted: Fri May 08, 2020 17:31    Post subject: Reply with quote
egc wrote:
The EA6700 and EA6500v2 are identical.

It has nothing to do with EA series linksys.

The EA6500, EA6700 and EA6900 all suffer from the 32k nvram problem.

I cannot comment on Tomato but I doubt they solved this.
The way to mitigate that is described in the instructions.
The only real way is using an alternate CFE like I have done for my EA6900, see my signature at the bottom of this page but necessary it is not.

The instructions seems pretty straightforward.
But I do not have this router so I can only point you to the instructions.


Hi EGC,

Thanks for your initial Light up. I kindly believe that tomato has solved the NVRAM problem, because one of the common steps on the tomato flashing installation is to replace the NVRAM and they warn that there are no way back to custom.

I installed Tomato Shibby into the EA6500v2 and everything is working fine (started with dd-wrt and then changed), I was about to move it to production but saw that the CPU values are rounding 87ºC. are those normal values? Sorry if my question is very silly, but i did not have the chance to test it with factory, and saw that happen often on some installations.

I am thinking on getting an external small USB fan (in deed: Ac Infinity Multifan S1) to glue it into the bottom to force the heat out and take energy from another device.

Is there another better approach?

Thanks

Alex
kernel-panic69
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PostPosted: Fri May 08, 2020 18:32    Post subject: Reply with quote
Something tells me you meant CFE and not nvram.
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u2n
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PostPosted: Mon Jul 11, 2022 12:45    Post subject: Reply with quote
Forum activity on this model has really dropped off; this is the latest thread I find!

For any bewildered who stumble upon this, the fix procedure remains the same; do the new CFE (my posts here and following go a little more in depth, that original support thread now locked) and upgrade.

Gave this router to my FIL, who used it for a year then changed ISPs. Just retrieved it from a drawer in his basement, updated to latest BS build (sad to read kong no longer active), and now works better than new. Fixin' to give back to FIL for return to original ISP. Router is rock solid.

In retrospect, I would initialize in the CFE the rc_startup variable with the key command
Code:
for line in $(nvram show | grep =$ ); do var=${line%*=}; nvram unset $var; done

since the router won't ever run (or even flash) current builds reliably without it.

What's old is new. Idea

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ZenInTexas
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PostPosted: Fri Jul 22, 2022 19:03    Post subject: Reply with quote
u2n wrote:
In retrospect, I would initialize in the CFE the rc_startup variable with the key command
Code:
for line in $(nvram show | grep =$ ); do var=${line%*=}; nvram unset $var; done

I suspect that CFE editors would complain about lack of space after adding "rc_startup=...". So you would need to kill a few existing variables.
dale_gribble39
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PostPosted: Fri Jul 22, 2022 20:34    Post subject: Reply with quote
The .rc_startup script is the startup script that is stored in nvram, not the CFE bootloader. Administration -> Commands -> Save Startup.
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ZenInTexas
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PostPosted: Fri Jul 22, 2022 22:02    Post subject: Reply with quote
dale_gribble39 wrote:
The .rc_startup script is the startup script that is stored in nvram, not the CFE bootloader

I think he intended to have it stored in the CFE. So when an a nvram reset occurs the CFE will populate nvram (and set "rc_startup=" where it will eventually get transferred to the file .rc_startup).
I have not looked thru the code to see if the dd-wrt will do something to the nvram variable "rc_startup=". Ie, set to NUL/Null/empty string or basically otherwise overwrite the CFE reset values.
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