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  1. Senior Member ssnyderu2's Avatar
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    #1

    Default Whats better to get?

    My lab currently has 3 2811 routers and 3 3750 switches. I dont like moving the console cable from devise to devise. To control them all from 1 PC I can get a 2509/2511 terminal server, or I can put together a PC that has 2 serial port add in cards. Each card has 4 serial ports for a total of 8 serial ports. The cost would be about the same, but I am thinking the experience with the terminal server would be a nice plus.

    Thoughts?
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  3. They are watching you NetworkNewb's Avatar
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    #2
    When I had my lab going, I bought a bunch of Console cables, one for each router and switch. Then hooked them all up with Serial to USB cables, and bought a USB hub and had them all hooked to my computer at once at the one USB port.
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    #3
    Go to Ebay and look for a used Digi CM-48 or CM-32. Those let you connect to Cisco console ports using plain straight-through Ethernet cables. They should be cheaper than the combination of an old 2500-series router with octal cables.
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    #4
    Can you not simply SSH or Telnet into your devices?
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  6. Senior Member
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    #5
    you could also look at getting a nm-16a or nm-32a network module for one of your 2811 routers. it could serve double duty as a terminally server also. Just depends on how much you will reloading that router, as when it would be reloaded you'd lose all your console connections. But, you can always put the network module in an old and cheap 2600 router. Then you'd have a stand alone solution. and, depending on configuration, an extra router when you need one.

    I've used usb hubs, digi, 2509/11, and others. They all take a certain amount of working with cables and configuration, etc. to get up and running. And, of course, they always break when your doing something. With some solutions, you are on your own trying to fix it. reboot your pc, check the cables, settings, etc. Make sure you have it all documented. and spares for inexpensive components like extra cables.

    as far as the 2509/11, there are a lot of documents online for setting them up. And, many people will help you out with them. But, those octal cable are short and if you break a connector, you now have a 7 port octal cable. But, you can get ethernet extenders. extend the cables to what length or configuration you like. And, you have a sacrificial connector at the end that you can replace when it breaks. I have never used the extenders, but I have broken connectors.
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  7. Senior Member dontstop's Avatar
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    #6
    I bought a 2821 for $30AUD and an NM16A $60AUD from eBay. Using that as an 8 port (up to 16) terminal server. I also installed 3 very low speed 80mm fans in the 2821 to reduce the noise. Whisper quiet now
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    #7
    Quote Originally Posted by rob42 View Post
    Can you not simply SSH or Telnet into your devices?
    Thats what I'm wondering too. Doesn't your hardware allow you to setup ssh / telnet on it?

    I would have thought that you'd only need your console cable for initial config then you could just ssh into everything.
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  9. Senior Member dontstop's Avatar
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    #8
    Quote Originally Posted by rob42 View Post
    Can you not simply SSH or Telnet into your devices?
    Console access is always best as it allows you to totally break Layer 1-3 and still have access to the devices.
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  10. Senior Member ssnyderu2's Avatar
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    #9
    Thanks for all the great ideas. I did not realize there were so many options.
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  11. Senior Member ssnyderu2's Avatar
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    #10
    Went with a 2620 and an NM-32a. The 32a is overkill, but it was only $5 more than the 16a, so why not? Still need to pick up the octo cable. After I get the octo cable i will be down $100.00.

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  12. Burn Baby Burn! Cisco Inferno's Avatar
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    #11
    I was going to say Digi CM32 or CM48.

    maybe $40 tops
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  13. Senior Member ssnyderu2's Avatar
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    #12
    Quote Originally Posted by Cisco Inferno View Post
    I was going to say Digi CM32 or CM48.

    maybe $40 tops
    I considered that, but when I looked on eBay the cheapest I saw was $180. Of course today I look and find one for $46. Here is the link, they have 5.

    Digi CM32 50000838-05 C 32 Port Console Server RJ-45 CM-32/ 5490 | eBay
    2017 Goals: CCNA R&S
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  14. Senior Member mikeybinec's Avatar
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    #13
    Although you already have bought something I use Perle Systems serial cards

    Buy Perle SPEED 2 LE Serial Card
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