Creating Dual Ethernet ports and separateing Internet vs. LAN

I have a situation in a shared office where I would like to be on the LAN so as to be able to share files and peripheral equipment such as printers, but I would like to have my own dedicated highspeed DSL service instead of what is provided and shared by the rest of the LAN. What is the best way to go about this?
Can I install a second Ethernet card in my G5 and have the connection from the DSL modem go directly into that port? If so, how would I tell the computer to use that port for Internet instead of using the other used for LAN? I mean since technically I would have dual Internet services coming to my machine (one through my LAN and the other through the secondary Ethernet port) how could it know which one to access?
PowerMac G5 Dual 2GH Mac OS X (10.4.6)

Also, as a follow up question, can I use any Ethernet card or are there Mac specific one that I need to get?

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Dual Ethernet Ports, and Air Port Wifi

I have a early 2008 and 2009 Mac Pro and was wondering if there was a way to connect both ethernet ports and the airport wifi as one "adress" so i would essentially have 3x the bandwith for downloading/uploading, etc.
This is in both Snow Leopard and Win XP Via Boot Camp

You might start by reviewing this thread and associated links:
http://www.insanelymac.com/forum/index.php?showtopic=57382.
Apparently it should be possible to link the ethernet ports together but not the wireless.

Looking for an Access Point with 2 Ethernet ports and powered via PoE

Hi Gurus,
I am looking for an Access Point with 2 Ethernet ports and the access point can be powered via PoE. I have been assigned with a requirement where the rooms need to have access point as well as an Ethernet Cable provided from the Access Point as a backup for connectivity.
The room only has one data cable coming from the main IT room as well does not have a spare power socket to power the Access Point. Will be good if it can be centrally controlled or controller based.
Any recommendations?
Regards
J

For the backup plan, the cheapest solution may be to just run a couple new cat5e drops to the room(est cost $250). If not then purchase a small Cisco POE switch for the room(est cost $2k). For wireless I would purchase a POE enabled Cisco AP. But you will need to verify the POE switch/blade you will be connecting the AP to can power the AP you buy. I got burned by that issue when we purchased some Cisco 1251 AP's with dual radios and they needed more power than our 4500 POE blades could handle. We were told we would need to purchase new 48 port 10/100/1000 blades or power injectors. Our Cisco sales vendor took the heat for that mistake.
Posted by WebUser Steven Kinney from Cisco Support Community App

Question with regard to dual ethernet ports

First let me say that I am a novice at networking, so this may be a stupid question. I had my network plugged into on of the ethernet ports and was unable to access a forum I visit. I could access most every other website, but not this particular one. I switched the ethernet cable to the other port and the problem resolved itself. Why would I be able to access it from the one port and not the other?
G5 quad core Mac OS X (10.4.6) 1 gig of Ram

Hi Jaya,
Thank you very much for your correspondence and I am very sorry to
mislead you.
What I would like to do is to link an existing partner record with
an existing lead record. Since both records already exist, I set
the rowid to both records. However I got the error.
Could you please give me an advice?
Thanks,
Naoyuki

I have a iMac g4 swivel and it seems that the ethernet port and the optical drive are not working.

Is there any troubleshooting I can try, short of replacing everything?
I really love this version of the iMac and want to use it in place of my eMac for some home business inventory and printing work.
I need the ethernet to work because the printer can only connect that way. It's a great laserjet from HP (1998 version) and it works like a champ.
As for the disc drive... I would love to install office or iwork but as I said nothing seems to mount. I also can't upgrade it to Tiger. It's running Panther and I can live with that I suppose.
I have wondered if I could exchange parts from the eMac (Motherboard, Optical Drive, Hard Drive) since its bulkyness takes up so much room.
Any ideas?
Thanks
And yes I have a modern macbook pro as well.

You can use the dvd drive on your macbook via target disk mode.
"Installing OS X 10.4 'Tiger' on DVD-Challenged Macs Using FireWire Target Disk Mode"
http://lowendmac.com/misc/06/0710.html
1) Do you have a router? Do you communicate to the internet via wifi?
connect the printer to a router with an ethernet port. This will be an input eithernet port.
You may need to change ip addresses on your printer or on your network.
2) usb to ethernet dongle
Apple USB EN Adapter Network adapter - Hi-Speed USB
http://www.google.com/products/catalog?oe=utf-8&rls=org.mozilla:en-US:unofficial &client=firefox-a&q=usb+to+ethernet+dongle&um=1&ie=UTF-8&tbm=shop&cid=1255179391 6678370799&sa=X&ei=L7xdTsDTGsXz0gHdvazcAg&ved=0CF8Q8wIwAw
verify that the dongle will work on your machine. Any drivers needed?
3) You can firewire to for TCP/IP ( ethernet) to comunicate between macs. Connect your printer to your macbook. Use firewire to communicate between macs. Enable printer sharing.

A20m Trouble with Ethernet Card and the Internet

I have a A20m Thinkpad that is not connecting to the internet. At first my problem was that I did not have an ethernet card as detailed on this forum post.
http://forums.lenovo.com/t5/Legacy-ThinkPads-A-I-V-300-600/A20m-Network-Controller-Driver/m-p/219725...
Thus I bought this ethernet card and installed it.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190223756432
From what I can tell I installed it correctly and then I preceded to install the drivers for this card. The ones located on this page.
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-4K4PWT
It seemed to work well and the controller shows up in hardware devices.
That went well, but I still cannot connect to the internet. I thought it might be the card itself but after running the 3Com NIC Utilities that came with the drivers it said that there were no problems with the card.
Also of note I have noticed that there are no lights on the port where the ethernet cable is plugged in. I am not sure if there should be. Any help people could offer would be most appreciated. This Thinkpad is running windows XP.

Called them up today and basically I got them to pay for shipping this time. They told me they did not have any more new ones of my model and are not willing to ship me a suitable new replacement model after all this trouble and just gonna keep on shipping me refurbished until we find one that works (the heck? ...his quotes). So basically by the time I get my 2nd refurbished replacement (and assume it actually works this time) my computer would been down for over 2 months.
I am currently saving up for a 9800gt from evga since they are budget priced now (heard they actually have a good customer service and good quality cards) and based on my experience with MSI I can't recommend their products to anyone now sadly.
Hopefully MSI will send me out a tested a verified to word refurbished card this time.

WRT160NL blinking Ethernet ports and wireless LED

I have a 2-3 month old WRT160NL that has been working fine until 2-3 days ago I noticed that the Ethernet port thats connected to a computer and the wireless LED has started blinking rapidly. Even after a power cycle that this blinking happens. Router seems to function ok BUT by internet connect has slowed down specially the wireless part. Any ideas? I have a wireless printer that's connected to this router and I can not even ping it anymore. It never did this before and I have not changed any settings lately. I have borrowed a friend's WRT160NL and no blinking on his router and provides me with a fast connection and my wireless printer works using his WRT160NL.
Any help is appreciated, else I'll probably return this router under warantee.
Thank you.

thanks for the replies. figured out the problem. the router is secure. for some reason the wireless connection between the wireless printer and the router has dropped low which made the router to send out "more packets or signals" to keep the connection going which explains the very constant blinking on the wireless light. when i moved the printer a little closer the blinking stopped. this probably would explain my "slower" internet connections specially with wireless. i just fiddled around with the linksys antenna and things look ok. im just currently trying to figure out how to "extend" that wireless reach from the router to the printer -- maybe a high gain antenna.
thank you.

I set up a router thru my ethernet port and now i am unable to get airport to work.

I recently configured a router connected to my Macbook Pro thru my ethernet port. I am now unable to use Airport at all! Ive tried Network diagnostics to turn it back on and it wont even recognize it , please help

Read the user manual that came w/your router and/or contact their tech support/forums.

I have a current 2TB Time Capsule. I would like to add more ethernet ports for needed expansion. Will an Airport Extreme conflict with the Time Capsule for needed ethernet ports and will wireless from both units conflict?

I own a current 2TB Time Capsule and I need to expand my network system to include more ethernet (wired) ports. I am considering an Airport Extreme that would give me enough wired ports. Will the wireless capabilities of both units conflict with each other? I only need one wireless network. Thank you for any help.

While you could certainly add an AirPort Extreme to provide additional Ethernet ports, you could also save about $150 by purchasing an inexpensive switch, such as one of these:
http://www.amazon.com/D-Link-DGS-1005G-5-Port-Gigabit-Desktop/dp/B003X7TRWE/
http://www.amazon.com/TRENDnet-Unmanaged-GREENnet-Auto-Negotiation-Auto-MDIX/dp/ B001QUA6R0/
Consumer grade Ethernet switches typically come in five and eight port configurations. Just be aware that a five port switch only conveys the ability to add three additional devices. An eight port switch conveys the ability to add six additional devices.
An 8 port switch provides twice the capacity of a 5 port switch for considerably less than twice the cost. The price difference between the two is often only $10 or so.
I just checked, the 8 port version of the Trendnet switch above costs exactly $4 more.
An AirPort Extreme is a very flexible full featured wireless router, and would provide three additional LAN ports for wired devices. If all you need is a few more ports though, it's overkill.

Can the MacBook Pro use 10GBASE-T ethernet cables and achieve internet speeds of up to 10 gigabytes a second?

I was wondering if I could use a Cat6 cable with my macBook pro and achieve internet speeds up to 10 gigabytes a second without using a Thunderbolt to 10GBASE-T ethernet adapter.

joshuafromwaterford wrote:
10 gigabytes a second without using a Thunderbolt to 10GBASE-T ethernet adapter.
The 10GBASE-T standard allows for max 10Gbit/s. Gigabits, not gigabytes.

Poor network performance on wired ethernet port and airport

I'm using Leopard 10.5.1 on a home network comprised of a new, fully up-to-date (firmware wise) D-link wireless router and a couple ethernet hubs. I initially had problems because of old router firmware, but buying the new router and making sure firmware was up-to-date seems to have solved the connection problems. What I now experience is that whichever network cennection I am using, wireless or wired ethernet port, will slow down so slow that it's impossible to get any web content, upload files to my local server, or sent emails with any kind of attachment. Turning off the connection I am using, either wired ethernet or airport, and switching to the other solves the problem for a short time, usually a couple days or so. Then that connection with slow down and I have to switch back - again solving the problem. So to keep my network connection alive, I have to keep switching back and forth between the wired ethernet and the airport connection.
The rest of my network consists of several Windows machines including a Windows 2000 server. None of these devices ever have any problems with network access.
I've tried playing with the advanced settings with no luck. Does anyone know of a specific setting that might be the culprit?

Hi ,
Maybe you can try to disable checksum offloading and jumbo frames on the Physical NIC (ESX platform) to check result .
Best Regards
Elton Ji
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Dual Ethernet Ports

My server has 2 ethernet ports. Is there any advantage to having both of them connected to the switch? If so, how do I set it up for best throughput?

Actually yes there is. You can bond those two nics together to form one logical link. Of coarse the switch your using needs to support Aggregated links as well as your os. In most cases this is quite hard to setup and can actually hinder performance if setup incorrectly. If done correctly will add more throughput and have a layer of failover capability such as to another core switch in your network.

"Example on reading combined signals from a serial port and separating them for display purposes". I am a beginner in Labview and would appreciate if anyone help with that

I am working on a wireless vital sign monitor. I have 3 signals; heart rate and temperature. I filter and amplify the signals before converting them into digital form. I then pass them via MAX232 before passing them to RS232 serial cable.
I am therefore working on a program to receive the combined signal and separate them.
I have come across serial read and write examples on ni.com but am looking for one where I can actually separate combined signals and display them separately.

Reading the serial port will give you a string. How you divide the channels depends on how the data was formatted before it was sent over the serial channel.
If you are designing the instrument, as it seems from your query, then you can set up any form you wish. If your data is always floating point numeric, you could use space or tab characters to separate data words. You could use and XML format. If the instrument is provided by a vendor, contact them for the protocol.
If tabs are used between words and returns between sets of readings, the resutlant string can be interpretted by the Spreadsheet String to Array function in LV.
Things to avoid are characters often used by serial communications systems as control characters. Carraige returns are
often used as command terminators by serial protocols, but may also be used by the port.
Lynn

Ethernet port lit, no internet

I am having 2 problems with networking on my v570.
when hard-wire connected to a time warner arris modem, the computer sometimes recognizes the network but does not get internet access.
when connected to an airport extreme via the same modem, it connects to the internet but speeds are drastically low. when I hardwire connect a mac to the modem, it's blazing fast.
something seems to be wrong with the connectivity
re: http://support.lenovo.com/en_US/diagnose-and-fix/detail.page?DocID=HT001712
thanks,
chad
Solved!
Go to Solution.

If you have a Broadcom wifi, you will most likely be getting between 65-72mbps connection, that`s only a max of 8MB download speed.
What connection speed is your wifi getting, and what brand of wifi card do you have Intel, Atheros or Broadcom.
EDIT : what wifi connection speed and the reliability of the connection depends on any interfierence around you, from other wifi, bluetooth, dect phones, gas\elec meters, baby monitor, micowaves and the list goes on and on.
Also what router you have can affect your wifi connection speed.
The program in the link below, will show you all the wifi router in your area, the more the harder your notebook and router has to work to get a good connection.
http://www.metageek.net/products/inssider/
John.
Win7 Lenovo Ideapad Z580 i5-3210m HD4000 Win7 x64 8gb 1600MHz Samsung 830 256GB SSD

Standard TCP/IP Port missing from drop down "Create a new port and add a new printer"

Somehow someone was on my print server and made some changes or added some software. I found that the "HP Universal Print Monitor" was my only other choice besides Local Port when I went to add a new printer on my 2012 print server
"Standard TCP/IP Port" was gone. I ended removing this from the registry (see below) as I could not find any other way to uninstall it. After this was removed I did reboot and I can still add a normal Standard TCP/IP Port under print
management in the ports section but this option is gone in the drop down when you add a printer under printers.
Any idea how to get this option back into the drop down list?
HKLM\SYSTEM\CURRENTCONTROLSET\CONTROL\Print\MONITORS\HP Universal Print Monitor

I followed these instructions and everything is correct and still do not have the tcp/ip option
Restore missing Standard TCP/IP Port type for Printer
Filed under:
Tips n Tricks — Rahul Patel @ 5:01 pm
If the TCP/IP port option is missing you need to re-add it.
First, make sure that the following files are in C:\Windows\System32\:
tcpmib.dll
tcpmon.dll
tcpmon.ini
tcpmonui.dll
If they are missing, you will need to copy them there from either the i386 directory (if you have one) or from the original install CD.
Then, copy the following lines to NOTEPAD and save the file to your desktop as “printer.reg”
Windows Registry Editor Version 5.00
      [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Monitors\Standard TCP/IP Port]
      “Driver”=”tcpmon.dll”
      [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Monitors\Standard TCP/IP Port\Ports]
“LprAckTimeout”=dword:000000b4
“StatusUpdateInterval”=dword:0000000a
“StatusUpdateEnabled”=dword:00000001
Once it’s saved to your desktop, double-click printer.reg and say “OK” to the warning that you will be adding the keys to your registry.
Reboot the Server and the TCP/IP port option should be back.

Creating Dual Ethernet ports and separateing Internet vs. LAN

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