SFE - Should I disable it?

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mrhumba
DD-WRT Novice


Joined: 03 May 2012
Posts: 27

PostPosted: Mon Jan 15, 2018 15:31    Post subject: SFE - Should I disable it? Reply with quote
Hey guys,

Just spent sometime setup my router last weekend and I was wondering if I could disable the SFE option.

I have the WNDR4300 and my ISP connection is max 50mbps.

I wanted to disable SFE in order to use YaMon but if this harms my WAN connection speed then I will not do it..

I am also wondering if disabling SFE would harm the LAN speeds as well.

Take care
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Wildlion
DD-WRT Guru


Joined: 24 May 2016
Posts: 1416

PostPosted: Mon Jan 15, 2018 15:45    Post subject: Reply with quote
SFE will only affect the WAN/LAN interface. At that ISP speed, I do not think that you will notice a difference in internet speed because the software should be able to handle that speed anyways (Feel free to disagree since I do not own that hardware)
mrhumba
DD-WRT Novice


Joined: 03 May 2012
Posts: 27

PostPosted: Mon Jan 15, 2018 15:53    Post subject: Reply with quote
Hey Wildlion.

I am thinking the same as you mentioned Smile
I was just afraid that it coud hurt my LAN-to-LAN speeds or something else if I disable the SFE..

So basically SFE is just improving the NAT translation for WAN..

Thanks!
tatsuya46
DD-WRT Guru


Joined: 03 Jan 2010
Posts: 7568
Location: YWG, Canada

PostPosted: Mon Jan 15, 2018 16:16    Post subject: Reply with quote
turn it off if u get ur wan speed without it. its a buggy problem causing feature, like all the other attempts of "speeding up nat" have always been
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LATEST FIRMWARE(S)

BrainSlayer wrote:
we just do it since we do not like any restrictions enforced by stupid cocaine snorting managers

[x86_64] Haswell i3-4150/QCA9984/QCA9882 ------> r55797 std
[QUALCOMM] DIR-862L --------------------------------> r55797 std
▲ ACTIVE / INACTIVE ▼
[QUALCOMM] WNDR4300 v1 --------------------------> r50485 std
[BROADCOM] DIR-860L A1 ----------------------------> r50485 std


Sigh.. why do i exist anyway.. | I love you Anthony.. never forget that.. my other 99% that ill never see again..

jmfolcik
DD-WRT User


Joined: 06 Nov 2010
Posts: 125

PostPosted: Fri Feb 09, 2018 2:01    Post subject: Reply with quote
Has anyone actually seen SFE speed up NAT? I haven't seen it improve anything on a 550Mhz tp-link. Max seems to be in the 60megabit range with and without it enabled (it doesn't require a reboot does it?)
mrjcd
DD-WRT Guru


Joined: 31 Jan 2015
Posts: 6291
Location: Texas

PostPosted: Fri Feb 09, 2018 2:54    Post subject: Reply with quote
jmfolcik wrote:
Has anyone actually seen SFE speed up NAT?

Well, yea over on the dark side forum with a pissy router Mr. Green
https://dd-wrt.com/phpBB2/viewtopic.php?p=1094482&sid=700644370c00349cd711097a6110a470#1094482
videobruce
DD-WRT User


Joined: 22 Aug 2009
Posts: 267
Location: New York State

PostPosted: Fri Feb 09, 2018 13:52    Post subject: Reply with quote
tatsuya46 wrote:
turn it off if u get ur wan speed without it. its a buggy problem causing feature, like all the other attempts of "speeding up nat" have always been


TURN IT OFF !!!!

This undocumented, useless 'gimmick' that is enabled by default caused me nothing but wasted time for months since I had no idea it was added, nor that it was set to enable.

When my service was 30Mbps, it apparently wasn't a issue. When my Internet service got increased to 60Mbps, problems started to show which was the same time I started 'streaming' from Amazon prime.
When Spectrum increased the service (without telling anyone until SIX WEEKS later) it caused enormous problems.
videobruce
DD-WRT User


Joined: 22 Aug 2009
Posts: 267
Location: New York State

PostPosted: Fri Feb 09, 2018 17:09    Post subject: Reply with quote
It wouldn't of been so bad if;

1. It was NOT set to enable by default and
2. It was clearly documented that it was added and what it was suppose to do. Including adding it to the help menu which so many entries are missing from most of the pages.

If there is time to construct the feature/function, there is time to document it. Stop assuming everyone knows everything and don't even try to tell us to do a search, we shouldn't have to!!.

Lastly, don't tell us 'if you don't like it, don't use it'. We do like it or we wouldn't be here. And we do appreciate the time and trouble this involves, just don't cut us short.
Alozaros
DD-WRT Guru


Joined: 16 Nov 2015
Posts: 6447
Location: UK, London, just across the river..

PostPosted: Fri Feb 09, 2018 20:30    Post subject: Reply with quote
videobruce wrote:
It wouldn't of been so bad if;

1. It was NOT set to enable by default and
2. It was clearly documented that it was added and what it was suppose to do. Including adding it to the help menu which so many entries are missing from most of the pages.

If there is time to construct the feature/function, there is time to document it. Stop assuming everyone knows everything and don't even try to tell us to do a search, we shouldn't have to!!.

Lastly, don't tell us 'if you don't like it, don't use it'. We do like it or we wouldn't be here. And we do appreciate the time and trouble this involves, just don't cut us short.


well... "SFE" it was explained and introduced, there was a thread and there was a testing period and all the work that
goes around.....and there was a feedback too, what to not do and what to do and what to use it with...
So where ware you, did you miss the class, don't know how to ggl ?? Its called Murrkf LAW... Razz

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Atheros
TP-Link WR740Nv1 ---DD-WRT 55630 WAP
TP-Link WR1043NDv2 -DD-WRT 55723 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
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videobruce
DD-WRT User


Joined: 22 Aug 2009
Posts: 267
Location: New York State

PostPosted: Fri Feb 09, 2018 21:03    Post subject: Reply with quote
It's not in the internal help file where it should be.
Anywhere else is immaterial.
None of that changes the fact it shouldn't be enabled by default. Period!
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7209
Location: Columbus, Ohio

PostPosted: Sat Feb 10, 2018 0:25    Post subject: Reply with quote
videobruce wrote:
It wouldn't of been so bad if;

1. It was NOT set to enable by default and
2. It was clearly documented that it was added and what it was suppose to do. Including adding it to the help menu which so many entries are missing from most of the pages.

If there is time to construct the feature/function, there is time to document it. Stop assuming everyone knows everything and don't even try to tell us to do a search, we shouldn't have to!!.

Lastly, don't tell us 'if you don't like it, don't use it'. We do like it or we wouldn't be here. And we do appreciate the time and trouble this involves, just don't cut us short.


You know what you should do? Withhold a portion of brainslayer's and kong's paycheck, when you send it to them that will teach them.

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labo
DD-WRT Guru


Joined: 30 Jan 2015
Posts: 676
Location: Texas, USA

PostPosted: Sat Feb 10, 2018 0:51    Post subject: Reply with quote
videobruce wrote:
It wouldn't of been so bad if;

1. It was NOT set to enable by default and
2. It was clearly documented that it was added and what it was suppose to do. Including adding it to the help menu which so many entries are missing from most of the pages.

If there is time to construct the feature/function, there is time to document it. Stop assuming everyone knows everything and don't even try to tell us to do a search, we shouldn't have to!!.

Lastly, don't tell us 'if you don't like it, don't use it'. We do like it or we wouldn't be here. And we do appreciate the time and trouble this involves, just don't cut us short.


LOL, I guess you need to review Murrkf's Standard Disclaimer under Broadcom section Wink
Time to add that to Atheros section too Smile

https://www.dd-wrt.com/phpBB2/viewtopic.php?t=291166

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Wildlion
DD-WRT Guru


Joined: 24 May 2016
Posts: 1416

PostPosted: Sat Feb 10, 2018 1:38    Post subject: Reply with quote
I do not want to become the hated person, but I have had good success with SFE enabled. Using it has given me stock speed but with all of the DD-WRT features. Obviously when I turn on QoS SFE does not work and I understand that.

I agree documentation is not a strong point, but there are notes and information on the forums. Not everyone is going to be happy with every single thing about DD-WRT. I have my little annoyances with it but they do not cause me to get upset. So I do understand.

Hopefully I am adding some positivity and say THANK YOU to the devs, I think that they do their best.
tatsuya46
DD-WRT Guru


Joined: 03 Jan 2010
Posts: 7568
Location: YWG, Canada

PostPosted: Sat Feb 10, 2018 1:43    Post subject: Reply with quote
the documentation ddwrt has is old & dated, i tried multiple times submitting updated & fixed help files but was mostly ignored so... Rolling Eyes
_________________
LATEST FIRMWARE(S)

BrainSlayer wrote:
we just do it since we do not like any restrictions enforced by stupid cocaine snorting managers

[x86_64] Haswell i3-4150/QCA9984/QCA9882 ------> r55797 std
[QUALCOMM] DIR-862L --------------------------------> r55797 std
▲ ACTIVE / INACTIVE ▼
[QUALCOMM] WNDR4300 v1 --------------------------> r50485 std
[BROADCOM] DIR-860L A1 ----------------------------> r50485 std


Sigh.. why do i exist anyway.. | I love you Anthony.. never forget that.. my other 99% that ill never see again..

labo
DD-WRT Guru


Joined: 30 Jan 2015
Posts: 676
Location: Texas, USA

PostPosted: Sat Feb 10, 2018 1:54    Post subject: Reply with quote
Wildlion wrote:
Obviously when I turn on QoS SFE does not work and I understand that.

You can enable both SFE and QoS as I'm using it( thanks to Tatsuya46 and mrjcd ). But does it help?... very difficult to prove with VPN in place.

To enable SFE when QoS is enabled, you need to have a startup script to reenable SFE as follows:

## Enable SFE when QoS is enabled.
#!/bin/sh
sleep 10
insmod shortcut-fe
logger "shortcut FE loaded"

_________________
ASUS GT-BE98 PRO Main: Fiber 5gbps up/down
ASUS AXE16000: AI Mesh node
2 X ASUS RT-AX89X: AI Mesh nodes
QNAP QSW-1208-8C 12-Port 10GbE Switch
XS712T ProSafe 12-Port 10GbE Switch
3 X R9000 DD-WRT Mesh
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