hub vs. router - 3com Superstack II DS Hub 500


Recommended Posts

I just obtained a 24-port 3com superstack ii dual speed hub 500, but I'm having trouble getting it connected.

I've always used routers for my networking. What's the difference connectivity-wise with this device?

I already tried configuring my IP address manually, and I can ping myself, but nobody else.

If I tell it to obtain the IP automatically, it says I have "limited or no connectivity", I would imagine because the hub does not function as a DHCP server.

What am I doing wrong and what can I do to get them to connect?

I have same router. My last Linksys had an uplink port. But this one doesn't. I used a hub for while on mine. I ran from regular port to regular port, but for the life of me can't remember if I assigned IP or not. I think I did. Wish I could be of more help.

K, I'm going to assume that the 3com is a hub/switch and that the other device is a router. There is a huge difference between these devices. In ye olde days, hubs put data on ALL the lines. This posed a security risk as it allowed you to "spy" on computers sharing your hub. Switches came along and solved this by only sending data down channels that they know a device is on. A router is an entirerly different beast capable of moving data between different subnets. I highly doubt the 3com device you have is a router. This means it wont do the nifty tasks your mom and pop linksys/belkin/netgear/etc cable/dsl routers do, which are actually route and then some. More likely it is a switch. I will henceforth call your internet cable/dsl thing "router" and your 3com device "hub".

First, if you're going to connect the router to the hub, you either need to use a crossover cable (if using two ethernet ports) or a patch cable (if you use one uplink and one standard port). Without this you'll never be able to connect the router to the hub. This should allow you to recieve DHCP data from the router.

Assuming you still can't get a DHCP address from the router, try manually setting the ip address on all the pcs. They will, of course, all have to be on the same subnet. Once that's setup see if the computers can ping eachother. If they can't something is very wrong.

  HPMCommander said:
It's a hub, not a router.

I'm going to try to make a crossover cable.

585269002[/snapback]

Yeah a crossover might be what you need between the hub and switch port of the router.

You might be able to test the hub out by plugging a cable into two ports of the hub and see if you get a link light on both. I'm thinking a straight through won't get one while a crossover will.

I just realized thats a manageable switch. Not some old crappy regular hub. :p

http://www.3com.com/products/en_US/detail....&sku=3C16611-US

This may provide you with some info.

Look on page 3 of the manual. The button specifies an uplink. You need to use port 12 or 24.

Edited by randy_tho

What happens when you do:

ipconfig /release

followed by:

ipconfig /renew

on the PCs? Also, do you only have 3 PCs or are you leaving the others out of the diagrams for convenience? If you only have 3, stick with the router only. Using the hub would just slow things down.

This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Posts

    • Garmin Dash Cam X310: 4K dash cam on sale at lowest price for $334.99 by Paul Hill Dash cam footage can be vital for drivers who get into accidents as it can be used to help with insurance claims if you’re involved in an accident, outside of that, it can be used for filming your trips or recording freak events such as asteroids burning up in the atmosphere. If you’re still without one, or looking to upgrade, take a moment to read about the Garmin Dash Cam X310 which has been reduced by 16% from $399.99 to $334.99. To briefly touch on the features before we get started, the X310 is a compact 4K Ultra HD touchscreen dash cam with a 140-degree field of view, ensuring it captures everything. There’s also a built-in Clarity Polarizer to reduce glare from the windshield and it features automatic recording. The main attraction of the Garmin Dash Cam X310 is undoubtedly the 4K Ultra HD video which will capture fine details, and the 140-degree field of view that ensures it doesn’t miss anything important. Coupled with this, the Clarity Polarizer helps to reduce glare from the windshield so that your video footage is better. It also includes HDR which improves the night vision. Aside from having a touchscreen, the X310 comes with voice control allowing you to save video and audio hands-free, meaning you can focus on driving. It supports multiple languages - English, German, French, Spanish, Italian, and Swedish. Other features include built-in GPS for recording the location, date, and time of incidents; parking guard and live view for security while parked (required a paid Vault subscription); and its compact design which allows it to sit “virtually unnoticed” on the windshield. Please note that the product description says some jurisdictions may restrict the use of dashcams, so check your local laws before buying. If you are looking for a high-resolution dash cam with voice control and advanced parking surveillance (paid subscription), the X310 could be for you. The main downside of this product is that it’s still at a premium price point, despite it being at its lowest price on Amazon. If you don’t mind this, it could definitely be a great choice for you. Garmin Dash Cam X310: $334.99 (Amazon US) / MSRP $399.99 This Amazon deal is US-specific and not available in other regions unless specified. If you don't like it or want to look at more options, check out the Amazon US deals page here. Get Prime (SNAP), Prime Video, Audible Plus or Kindle / Music Unlimited. Free for 30 days. As an Amazon Associate, we earn from qualifying purchases.
    • I have a Motorola B12, and it's been working pretty solidly for a year now. 
    • yes, which is especially funny considering you no longer have an option to turn them off, so how could this matter to anyone? It would be pretty evil if they waited until after Windows 10 EOL to renew the certs, but based on these dates, it looks like that wouldn't be possible, so no worries that I can see.
  • Recent Achievements

    • Week One Done
      Marites earned a badge
      Week One Done
    • One Year In
      runge100 earned a badge
      One Year In
    • One Month Later
      runge100 earned a badge
      One Month Later
    • One Month Later
      jfam earned a badge
      One Month Later
    • First Post
      TheRingmaster earned a badge
      First Post
  • Popular Contributors

    1. 1
      +primortal
      566
    2. 2
      +FloatingFatMan
      178
    3. 3
      ATLien_0
      173
    4. 4
      Michael Scrip
      129
    5. 5
      Xenon
      119
  • Tell a friend

    Love Neowin? Tell a friend!