cmaenginsb
Premium,MVM
join:2001-03-19
Palmdale, CA
| reply to korym
Re: T1 card for Linux-based routers?
You can't plug cable or DSL into a linksys router either. Both cable and dsl require "modems" to translate the signal from either the cable system or the DSL signal that travels down their phone line.
There are routers that include that functionality as well.
A T-1 uses a signal that is completely different from ethernet. It is a time division multiplexed signal that actually is broken into a number of channels.
It's like a conventional modem signal compare to a fax signal. Both send data but do so differently. |
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Kastigador
join:2005-08-17
Cincinnati, OH
| reply to jlramirez
I've been scouring the net trying to gain an understanding of the difference between T1's and other broadband services. i.e. Why can't you plug a T1 line into a consumer linksys router? I know this is probably obvious to everyone posting on here, but I'm knew to this whole arena(just graduated) and I am trying to gain some knowledge. Thanks,
CP |
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korym
Go Wisp's
ExMod 1999-03
join:1999-12-23
Richmond, VA
clubs:
| reply to nwn
Re: Ordered the MT software...
Not yet. Want to wait for the Cyclades card first (Gino's working to send it to me) but I don't think it'll be a problem.
I'll definitely let everyone know how it works out with the Cyclades card.
Thx again!
Regards,
Kory
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nwn
Premium
join:2004-03-05
Centerville, IN
| reply to korym
Great, glad it was that easy.
Did you get the bridging working as well?
Looking forward to hearing how this goes with the Cyclades card. I have been debating about buying another WIC for my Cisco 2600 or going to MT when I need a second T1.
--
Scott |
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korym
Go Wisp's
ExMod 1999-03
join:1999-12-23
Richmond, VA
clubs:
| reply to korym
Howdy all. Here's an update. 
I've ordered and installed the MT software this evening and got the router configured and up and running. I've sent Gino an IM and email, indicating my interest in his Cyclades card. Hope to hear from him soon (hint, hint!)
I'd like to thank nwn, aka Scott for giving me some insight on installing MT this evening. Once I plugged in a static IP to one of the NICs, I was off and running. Really looking forward to working with it.
Now all I have to do is get the T1 card and I believe I'll be good to go.
Thx again, everyone! Your continued help and assistance is very much appreciated and valued (and I mean for just about every post here, FWIW!)
Regards,
Kory
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herr_cain
join:2003-08-29
Rolla, MO
| reply to korym
Re: T1 card for Linux-based routers?
Kory,
I like your ideas for consolidating the 3Com into a Linux box that's more manageable/better in the long run.
Hope it works out for you, seems like you're getting it under control .
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Speelt op | http://www.dutchelitedivision.nl |
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mkaishar
join:2000-12-20
Walnut, CA | reply to korym
You can get lots of info for the fw from sonicusers.com |
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satasi
2nd Little Angel
Premium,MVM
join:2001-07-04
San Antonio, TX
| reply to korym
I was reading this post and the reason you can't plug the T1 straight into the sonicwall router is the T1 signal is digital and connects thru the CSU/DSU and another reason is the T1 is on pins 1&2 transmit...3&4 receive......and yes to your question about bridging the 3com unit and plugging into the Wan port of the sonicwall. SATASI
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He who knows never speak..... He who speaks never knows....... |
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korym
Go Wisp's
ExMod 1999-03
join:1999-12-23
Richmond, VA
clubs:
| reply to stled
said by stled  :Kory, as JdMarti said above. Just use the 3com as a bridge, turn off all other functions, DHCP etc and plug your Sonicwall into it. The 3com shouldn/t have any trouble if it's not handling lan tables and dhcp plus dns services. Thx, Ed and Jack! That's exactly what I wish to do. Unfortunately, I've never worked with this 3COM unit and have been going through the documentation inside and out to make the T1 and Ethernet ports bridge together.
mkaishar, fortunately, the Sonicwall unit is a PRO1260 so it should have plenty of processor. I'm not using it for DHCP and am only running one subnet inside the LAN. I am planning on using the DMZ/OPT port for one mail server. That being said, if I turn the 3COM unit into a bridge, all I should have have to do is plug an Ethernet cable into the Sonicwall's WAN port to the 3COM's Ethernet port and then plug the T1 RJ48 cable into the 3COM's T1 card, yes?
Gino, I sent you an IM, thx.
Appreciate it, all!
Regards,
Kory
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mkaishar
join:2000-12-20
Walnut, CA
 ·Verizon FIOS
1 edit | reply to korym
I would also look at the sonicwall as a bottleneck. Not sure which model you have but if it is the older PRO series, like PRO200, or PRO300 with firmware older than 6.6.0.6 then you will encounter problems with performance, lock ups, etc...
You also do not want to use the sonicwall as a router per se, are you running more than one subnet inside the LAN?
Are you using the DMZ port with public IP's?
Sonicwalls are not true router based firewalls, they are bridge firewalls.
I've used to deal with lots of issues with sonicwalls, although they are good units, they are not very flexible and are expensive as compared to m0n0wall.
One other item if you are running multiple subnets I would stick a linux box with multiple nics behind the sonicwall and running as your internal LAN router, this would separate the networks and prevent one point of failure. |
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aeronet
join:2002-04-05
San Juan, PR
| reply to korym
Korym,
If you are familiar with mikrotik, all you need is this:
»www.cyclades.com/products/products.php?id=6
that would take yout T-1 Sync and you can do whatever you want with it. I have one for sale, hit me offlist if you need it.
Gino |
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stled
join:2001-01-08
Saint Louis, MO | reply to nwn
Kory, as JdMarti said above.
Just use the 3com as a bridge, turn off all other functions, DHCP etc and plug your Sonicwall into it. The 3com shouldn/t have any trouble if it's not handling lan tables and dhcp plus dns services.
Ed |
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nwn
Premium
join:2004-03-05
Centerville, IN | reply to korym
Kory, you might look at ImageStream as well.
--
Scott |
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jlramirez
Premium
join:2004-10-01
Montgomery, IL
clubs:
| reply to superdog
I agree with you on contacting Cisco direct as a consumer buying from ebay, etc. They won't deal with you unless you have a smartnet contract....
Everyone has different experiences with Netopia... That's been my experience... Heck, my most recent is a transition from T1 to DSL (when moved to new home)... Cheap, easy DSL right?? LOL, I received a Netopia 3346N router for DSL from SBC... After problem with sync, etc (and numerous hours checking the actual line) the 3346N was replaced... Still issues... Went with a $15 Speedstream 5660 from ebay to test it and problem went away by getting rid of the Netopia... ($199 value -- Netopia 3346N)...
Either way with any vendor, there's good and bad... Oh well... back to our topic..
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Fiber Optics is the future of high-speed internet access. Stop by the BBR Fiber Optic Forum. |
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superdog
I Need A Drink
Premium,MVM
join:2001-07-13
Lebanon, PA
| reply to jlramirez
said by jlramirez :You can go for the managed router deal as most are using Cisco... Customer's we've had that used the Netopia boxen for T1 connections had nothing but trouble and failures... -JR We run both Cisco and Netopia routers, and so far, we have not had an issue with either one(knock on wood!). What I really like about Netopia, is that they don't care if You bought the router used from ebay, they just answer questions and give You tech support. Cisco is a PITA when it comes to this, and they pretty much tell You to pound sand or buy a new one from a VAR so You get their tech support. I have actually had a Cisco support tech tell me, "Sorry Mr. Wolfe, but since You didn't buy it from us, it's not our problem?, have a good day!", and then promptly hang up the phone!. They wouldn't even send me a copy of their old OS. That just really PO'ed me bigtime.
--
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jlramirez
Premium
join:2004-10-01
Montgomery, IL
clubs:
| reply to korym
You can go for the managed router deal as most are using Cisco... Customer's we've had that used the Netopia boxen for T1 connections had nothing but trouble and failures...
The 3Com card you were referring to is a CSU/DSU interface card for the router. As someone mentioned, and as did I, you can get some deals on routers on ebay (there's plenty of us around here and in the Cisco forum to help config)... But, if on a tight budget, may look at the managed routers from a provider......
-JR
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Fiber Optics is the future of high-speed internet access. Stop by the BBR Fiber Optic Forum. |
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superdog
I Need A Drink
Premium,MVM
join:2001-07-13
Lebanon, PA
| reply to jdmarti1
said by jdmarti1 :What is it you don't like about the 3-Com? I would just look at a switch to link all of this together in a DMZ format. That 3Com is an older unit, and per our phone conversation, it is operating at 38% processor capicity just by logging in and changing settings. It only has a 200Mhz chip in it. In the past, users would complain that the speed was slow, and it was blamed on the T1. The real problem lies with the 3COM unit. It just doesn't have enough horsepower to run a LAN with 140 users, and probably even more MAC's(servers etc.) in it's ARP table. Take a hammer to it, and get something from Cisco or Netopia with a "bigger set" to handle it.:D
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jdmarti1
Jack
join:2004-06-15
Oilton, OK
| reply to Believer
What is it you don't like about the 3-Com? I would just look at a switch to link all of this together in a DMZ format. If the 3-Com has some issues, that is a different story. I would build the Linux router over any of the others, unless you buy Cisco (there are some great deals on 3600 on Ebay). Get the bigger Cisco, that way it can grow with you and not have to be replaced if you ever want to expand. The 2600 series is great for one T1, but do yourself a favor and get the 3600. The Netopia and others all have the same problems. Not enough horsepower. If you use only basic routing functions, and nothing else, you are great. When you start using all of the features they build in to them, they slow way down. Just my .02 |
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Believer
join:2002-07-04
Baltimore, MD
| reply to korym
The smartjack from the telco is not a CSU/DSU. While the specs on your 3Com card don't mention that it has an integrated CSU/DSU, from the looks of the card it does. You can't just connect an ethernet port to the smartjack even if the connectors are the same. Although, you can use just regular Cat5 to connect the smartjack and your T-1 router.
Most new T-1 cards come with an integrated CSU/DSU. In the past, they were separate pieces of hardware. As suggested, go with a used Cisco or a Mikrotik server and drop a PCI T-1 card in. Although, you may want to stick with something your predecessor will understand! |
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korym
Go Wisp's
ExMod 1999-03
join:1999-12-23
Richmond, VA
clubs:
| reply to korym
Well, perhaps I'm thinking the line card for the T1 is also the CSU/DSU (I'm coming into this thing blind and trying to sort everything out). The card that has the "smartjack" (provider's name for the port where the RJ48 cable is) is an Adtran unit. I didn't get a model number and I can't get into the box because the provider has the master key.
This is the router that we're currently using:
»www.3com.com/products/en_US/deta···=3C13700
This is the T1 card within the router:
»www.3com.com/products/en_US/deta···=3C13720 (yep, robbin, this is where the RJ48 plugs into)
I don't see where the card has a built-in CSU/DSU so I'm thinking the Adtran unit is the CSU/DSU and the card simply converts the RJ48 cable into Ethernet?
The router has a separate RJ45 jack that will connect to the Sonicwall (theoretically).
I was told by the Sonicwall rep that I'd have to "bridge" the T1 card and Ethernet jack together so that the router will simply be passing traffic.
Unfortunately, I don't have a lot of money to spend and I just want to get a router that I can plug in and forget about. I'll admit that my Cisco knowledge is fairly weak. Last time I worked with a 2600 was four+ years ago.
I'm thinking something like this might do the trick:
»cgi.ebay.com/ws/eBayISAPI.dll?Vi···RTQ:US:1
Might be an idea (as robbin mentioned, I could troubleshoot it)?
I may even get out of the current T1 contract altogether and shoot for a provider that includes a managed router. I found out that someone signed on with the current provider at $660 per month for FIVE YEARS!!! My jaw hit the floor when I heard that.
Regards,
Kory
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