Posted: Mon May 15, 2017 5:17 Post subject: Lan port status
So either google is failing me or I am to tired to think of the right search keywords, I am looking to check the port status/link speed, either gui or cli. I can check the wifi link speed so I don't see why I couldn't get the ethernet link speed/status
Posted: Tue May 16, 2017 4:34 Post subject: Re: Lan port status
d0ug wrote:
jass1989 wrote:
So either google is failing me or I am to tired to think of the right search keywords, I am looking to check the port status/link speed, either gui or cli. I can check the wifi link speed so I don't see why I couldn't get the ethernet link speed/status
I don't think there is any way software wise to get the link speed status of the switch ports. The switch on this and most routers is a separate network switch ASIC. For all intents and purposes its like having another separate switch plugged into your router, but the router and switch is built into a single box.
This is why most router/switch combos have only 4 LAN ports, but 5 port stand alone switches are quite common. Basically the processor that runs the router has two ethernet interfaces. One for the WAN and another for the LAN. This LAN interface from the processor is tied to one of the 5 switch ports by wiring on the circuit board itself, leaving only 4 of the switch ports user accessible on the outside of the box for LAN use
*EDIT*
One way you MIGHT be able to determine the link status by software, if there are any unused GPIO pins on the processor. You could wire the status LEDs of the switch to these GPIO pins of the processor and read what the status is of the LEDs that way. I am not sure if there is documentation of the hardware at that level to know what if any GPIO pins are unused, and where they are located on the processor to solder wires. Since the processor is a BGA package this would be nearly impossible unless these GPIOs were brought out to test points somewhere else on the board.
Doug that is a great explanation.... so the status lights I am seeing on the front of my router signifying GB link or not is from the switch side of things?
So a managed switch we can set up vlan and view link status. Since DD-Wrt has vlan and QOS, wouldn't that seem like its a managed switch inside the router?
I like the idea of bringing link lights to chips... a bias diode maybe to keep form shorting out the chip.
this is what I am looking for.... except I get "Failed to connect to switch" and swconfig list prints nothing... I guess what doug is saying is checking out with this linksys... damn it..
But the command does work for my tp-link network with 27PCs great!
Joined: 14 Dec 2015 Posts: 774 Location: 127.0.0.1
Posted: Wed May 17, 2017 3:10 Post subject:
jass1989 wrote:
maybe I should have added I'm using WRT3200ACM
this is what I am looking for.... except I get "Failed to connect to switch" and swconfig list prints nothing... I guess what doug is saying is checking out with this linksys... damn it..
But the command does work for my tp-link network with 27PCs great!
3200ACM here, swconfig dev switch0 show works for me. Which build are you using? _________________ Tutorial for flashing WRT series WRT Installation,Upgrade & Basic Setup–Cliff Notes
r52242: WRT3200ACM, WRT1200ACv1 & 1 Velop in bridge mode(IoT subnet), r52242 WRT1900ACv1 AP
Velop:2 WHW0101, RE6500, RE9000(AP)
Spectrum - 1000/50
SysLog Watcher 5, New security Onion box coming soon, Fingboxes, PiHoles, NEMS, Cacti, rpisurv
this is what I am looking for.... except I get "Failed to connect to switch" and swconfig list prints nothing... I guess what doug is saying is checking out with this linksys... damn it..
But the command does work for my tp-link network with 27PCs great!
3200ACM here, swconfig dev switch0 show works for me. Which build are you using?
Are you sure? what version are you using? I just flashed DD-WRT v3.0-r31924
Telnet in
root@DD-WRT:~# swconfig dev switch0
swconfig list
swconfig dev <dev> [port <port>|vlan <vlan>] (help|set <key> <value>|get <key>|load <config>|show)
root@DD-WRT:~# swconfig dev switch0 show
Failed to connect to the switch. Use the "list" command to see which switches are available.
root@DD-WRT:~# swconfig list
root@DD-WRT:~#
root@DD-WRT:~# WTH?!!!!!
I just tried this on one of my WRT1200ACv2's. It does return info, however don't rely on the port # labels to align up with what the actual physical ports are on the switch.
On this one currently being used as an AP/Switch in my living room. It has no cable plugged into the WAN, Gigabit on port 1 coming from the office WRT1200 router, Gigabit on port 2 going to another WRT1200 being used as a 3rd AP, and 100mbps on port 3 going to a hard wired chromecast.
