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=Netgear DGND4000 (N750 WiFi DSL Modem Router - Premium Edition)= | |||
DGND4000 is an excellent router as such. Unfortunately it has a few issues that Netgear has no intention of fixing: | |||
*It forces all DNS requests to go through the routers own forwarding service. Caching of requests is disabled ($$ business feature $$), so only effect is that every DNS request takes longer to complete. | *It forces all DNS requests to go through the routers own forwarding service. Caching of requests is disabled ($$ business feature $$), so only effect is that every DNS request takes longer to complete. | ||
*Number of concurrent connections (nf_conntrack_max) is set relatively low (compared to the routers hardware capacity) | *Number of concurrent connections (nf_conntrack_max) is set relatively low (compared to the routers hardware capacity) | ||
| Line 14: | Line 15: | ||
*Set DNS to google's DNS service | *Set DNS to google's DNS service | ||
*Disable unnecessary services to give more free memory and cpu cycles on router | *Disable unnecessary services to give more free memory and cpu cycles on router | ||
=Download= | =Download= | ||
| Line 32: | Line 29: | ||
|Initial release (includes sourcecode) | |Initial release (includes sourcecode) | ||
|} | |} | ||
=Usage= | |||
java -jar RouterSetup100.jar ADMIN-PASSWORD | |||
=Newest official firmware= | |||
North America: http://www.downloads.netgear.com/files/GDC/DGND4000/DGND4000_V1.1.00.14_1.00.14NA.zip<br/> | |||
Outside North America: http://www.downloads.netgear.com/files/GDC/DGND4000/DGND4000_V1.1.00.14_1.00.14.zip | |||
=Using telnet interface to change dsl settings= | |||
telnet 192.168.0.1 | |||
Enter admin password.<br/> | |||
See current speed | |||
# adslctl info --show | |||
adslctl: ADSL driver and PHY status | |||
Status: Showtime | |||
Last Retrain Reason: 8000 | |||
Last initialization procedure status: 0 | |||
Max: Upstream rate = 2158 Kbps, Downstream rate = 19232 Kbps | |||
Bearer: 0, Upstream rate = 2044 Kbps, Downstream rate = 17915 Kbps | |||
Link Power State: L0 | |||
Mode: ADSL2+ AnnexM EU-56 | |||
TPS-TC: ATM Mode | |||
Trellis: U:ON /D:ON | |||
Line Status: No Defect | |||
Training Status: Showtime | |||
Down Up | |||
SNR (dB): 6.1 7.5 | |||
Attn(dB): 22.0 15.9 | |||
Pwr(dBm): 18.6 12.9 | |||
Retrain connection with focus on maximum download speed (use --mod m for more upload speed) | |||
# adslctl configure --mod a | |||
Wait until connection is reestablished.<br/> | |||
Check speed again | |||
# adslctl info --show | |||
adslctl: ADSL driver and PHY status | |||
Status: Showtime | |||
Last Retrain Reason: 8000 | |||
Last initialization procedure status: 0 | |||
Max: Upstream rate = 1202 Kbps, Downstream rate = 20584 Kbps | |||
Bearer: 0, Upstream rate = 1202 Kbps, Downstream rate = 19200 Kbps | |||
Link Power State: L0 | |||
Mode: ADSL2+ | |||
TPS-TC: ATM Mode | |||
Trellis: U:ON /D:ON | |||
Line Status: No Defect | |||
Training Status: Showtime | |||
Down Up | |||
SNR (dB): 6.1 7.7 | |||
Attn(dB): 21.0 13.2 | |||
Pwr(dBm): 18.5 12.1 | |||
So the speed was changed from 17915/2044 kbps to 19200/1202 kbps | |||
Latest revision as of 13:36, 18 February 2014
Netgear DGND4000 (N750 WiFi DSL Modem Router - Premium Edition)
DGND4000 is an excellent router as such. Unfortunately it has a few issues that Netgear has no intention of fixing:
- It forces all DNS requests to go through the routers own forwarding service. Caching of requests is disabled ($$ business feature $$), so only effect is that every DNS request takes longer to complete.
- Number of concurrent connections (nf_conntrack_max) is set relatively low (compared to the routers hardware capacity)
Hardware specs:
- system type: 96362ADVN2xh
- cpu model: Broadcom4350 V7.0 (dual core)
- MemTotal: 124296 kB
- Kernel: Linux version 2.6.30 (root@BuildServer) (gcc version 4.4.2 (Buildroot 2010.02-git) ) #2 SMP PREEMPT Sat Feb 23 14:08:25 CST 2013
This little program will do the following:
- Enable telnet connections on 192.168.0.1
- Optimize kernel settings
- Set DNS to google's DNS service
- Disable unnecessary services to give more free memory and cpu cycles on router
Download
| Date | Version | File | Description |
|---|---|---|---|
| 26. Januar 2014 | 1.00 | http://files.subsecret.dk/RouterSetup100.jar | Initial release (includes sourcecode) |
Usage
java -jar RouterSetup100.jar ADMIN-PASSWORD
Newest official firmware
North America: http://www.downloads.netgear.com/files/GDC/DGND4000/DGND4000_V1.1.00.14_1.00.14NA.zip
Outside North America: http://www.downloads.netgear.com/files/GDC/DGND4000/DGND4000_V1.1.00.14_1.00.14.zip
Using telnet interface to change dsl settings
telnet 192.168.0.1
Enter admin password.
See current speed
# adslctl info --show
adslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 8000
Last initialization procedure status: 0
Max: Upstream rate = 2158 Kbps, Downstream rate = 19232 Kbps
Bearer: 0, Upstream rate = 2044 Kbps, Downstream rate = 17915 Kbps
Link Power State: L0
Mode: ADSL2+ AnnexM EU-56
TPS-TC: ATM Mode
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 6.1 7.5
Attn(dB): 22.0 15.9
Pwr(dBm): 18.6 12.9
Retrain connection with focus on maximum download speed (use --mod m for more upload speed)
# adslctl configure --mod a
Wait until connection is reestablished.
Check speed again
# adslctl info --show
adslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 8000
Last initialization procedure status: 0
Max: Upstream rate = 1202 Kbps, Downstream rate = 20584 Kbps
Bearer: 0, Upstream rate = 1202 Kbps, Downstream rate = 19200 Kbps
Link Power State: L0
Mode: ADSL2+
TPS-TC: ATM Mode
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 6.1 7.7
Attn(dB): 21.0 13.2
Pwr(dBm): 18.5 12.1
So the speed was changed from 17915/2044 kbps to 19200/1202 kbps
