Mac Pro :: Sharing Internet Over Second Ethernet Port?
Feb 12, 2007
Recently got a Mac pro. However my room only has one network socket going into my router, this goes to ethernet port 1. Internet works fine, no issues. However my old desktop (that the MP replaced) can't get online now - no second network port from the router into the room the computers are in. I have a crossover cable that I've used to connect the 2nd MP ethernet port to the PC ethernet port. However I can't get internet access on the PC. If the PC and port 2 are on their own subnet (not the router/port 1 subnet) I can get file sharing going between the MP & PC, but cannot figure out how to get the router/MP/PC on the same subnet together using both ethernet ports of the MP. I have already tried enabling internet sharing under system prefs etwork, but it doesnt work. Network: Router (connected to internet) at 192.168.1.1 - connected to mac MP port 1 - 192.168.1.2 - works fine in connecting to the net MP port 2 - 192.168.255.1 - works in networking to PC for filesharing PC - 192.168.255.2 - works in networking to Mac for filesharing Any combination of 192.168.1.xxx for the MP port 2 and PC, they can't fileshare anymore and there is still no internet for the PC. Anyone know how to do this?
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Mar 23, 2008
I'm renting a house for the week with several friends, and there's only one ethernet port. I figured I could plug one friend's Powerbook G4 into the ethernet, go into Sharing, turn on Internet Sharing, and then nearby computers could borrow the connection - this isn't working. The network doesn't even display on my other friend's powerbook. The little upwards arrow does not display ontop of the airport icon in the menubar, which I think it's supposed to, what's going wrong? I have "Personal Web Sharing" turned on under "Services," still no go...
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May 22, 2012
For specific reasons, I needed to connect my Synology DS211 NAS to my iMac directly via its ethernet port. I discovered that if I share my wireless internet connection (coming from my cable modem/wireless router) from wireless to ethernet, then the NAS would get the IP stuff it needed to show up. did that, voila, NAS is acting like a glorified external hard drive. BUT, when I did that, I lost all internet connectivity on my iMac. Still have full wireless signal. preferences pane says I'm fully connected to my network with an IP address, but safari always fails to pull up any webpages, saying I'm not connected to the internet.As soon as turn off the ethernet PORT, it all starts working again. And to make it even crazier, I discovered that if I leave sharing my wireless internet via my ethernet port ON, but turn off the ethernet port (in pref pane), I can STILL access the NAS just like before. That makes no sense - I'm sharing my internet via a port I have turned off, but it works? Anyway, why would Iose my airport wireless internet connection when the ethernet port is on - configured manually?
Info:
eMac 1.25GHz & iMac Intel 2.0GHz Intel, Mac OS X (10.5.8), 80GB external FW, 1GB RAM, Superdrive(DL)
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Dec 10, 2010
So far I haven't been able to get an airport connected computer to share its connection via ethernet with another. Am I doing something wrong or is this not possible?
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Dec 27, 2010
ive successfully done this before with 10.5 and xp and am trying to replicate with 10.6 and win7.
my imac connects to internet via airport. i want to share that internet with a win7 box via ethernet cable. i've turned on internet sharing in sys prefs but to no avail.
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Jan 18, 2010
I know the steps for internet sharing airport card's internet access to another computer via ethernet cable, but how do i set it up to share it with a router via ethernet cable?
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Aug 4, 2005
At the moment, I have an ADSL modem/router (1 port) connected to my switch (ethernet port 1 on the server and all my clients are also connected into this same switch). ADSL router has IP address 192.168.2.222 (assigned manually - outside my DHCP range). X Serve operates as DHCP for everything else and I put the default gateway as 192.168.2.222. Internet works fine on all computers (including server). But I want the ADSL modem/router to be connected to ethernet port 2 on X-Serve (not straight into the switch). If I just unplug the ADSL router from the switch and plug it into port 2 of the X-Serve, the server can access the internet, but all clients can no longer. Anyone have *any* clue how to fix this?! It doesn't seem that complicated, I feel I have done everything right.
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Feb 20, 2010
Is it possible to share the internet through a protected ethernet network on os x?.. and if so, how can I do it?
I'm well aware that I can make a protected wireless network.
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Mar 19, 2012
I've been trying to connect over internet sharing from my Macbook pro to my i-pad 2 and am having some issues I hope someone can adress. I go to Settings>Sharing from ethernet then to wifi. I name the network choose a channel then add a password from there I get this error message.
Are you sure you want to turn on Internet sharing?
If your computer is connected to a network, turning on Internet sharing may affect the network settings of other computers and disrupt the network. Contact your system administrator before turning on Internet sharing.
Info:
MacBook Pro
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Mar 11, 2010
I was wondering if anyone knows if its possible to share my LAN internet to an XBOX 360 using the Apple USB ethernet cable (for the Macbook Air) on my Macbook Pro 13"? I've tried several routers, and all have them have failed me giving me massive timeouts and sudden disconnects. I think this should be a good solution.
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Jun 17, 2014
I have a Late 2013 MBP Retnia. I have WiFi access via a captured portal. I have other WiFi and Wired (Ethernet) devices that can not authenticate to a captured portal.
Question:
1) On the single MBP mentioned can I connect to the captured portal WiFi via one band (say 2.4) and then become a WiFI hotspot with the other band (say 5)?
2) On the single MBP mentioned can I connect to the captured portal WiFi via one band (say 2.4) and then share the Internet connection to the Thunderbolt Ethernet connector?
Info:
MacBook Pro with Retina display, OS X Mavericks (10.9.3)
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Aug 25, 2009
i share a house with my brother, lucky me He got a PC with Vista in his room. I got a lovely imac in my room. He gets the broadband cable direct into his room. It averages 40 mbps download , 1.67 upload. We use a wireless Netgear router one thats suppose to handle N wireless and i pick the wireless up on the airport extreme in my imac. Unfortunately i only get about 12 mbps download , 1.20 upload, even though i'm only in the next room. We both play WOW online. It works so much better on his PC cos of the internet speed. Could I use a gigabit ethernet connection between the PC and imac, to share the internet and still play WOW independently?
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May 20, 2009
I was just wondering if any other macrumorsmembers have been in the situation where there's no wifi, no decent 3G, but ethernet ports available to use, but you don't have a computer handy? Would it be possible that you could create an ethernet cable one end, dock the other, and literally connect e.g. an iPhone into the ethernet? At my place of work, there's no signal (dodgy GPRS/flakey Edge), some wifi, but in halls of residence, you get 1 ethernet port, and you can't put a wireless router onto it. It would seem that it would be an interesting solution, if it was possible.
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Aug 11, 2009
How many of you would like to see a HDMI Port? Why the miniDisplay port? Why not remove ethernet jack and miniDisplay port and replace it with a HDMI port. That way one HDMI cable feeds digital video AND audio. Am I the only one thinking of this?
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Mar 21, 2008
is there a adapter with both a usb port and an eternet port?
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Jan 1, 2010
I'm running OSX 10.5.8 on a Macbook Pro, and today I've been unable to connect to the internet via ethernet or wi-fi, unless I'm in safe mode. Then everything seems to work as it should, which makes me believe that this is a software issue rather than a hardware problem. I've tried making a new account with administrator priveleges, but that doesn't solve my issue. Does anyone have any advice on how I can connect to the internet under my normal user account, rather than in safe mode? I should note that I won't be able to get my hands on my repair CD or perform a clean install of OSX because that stuff is at home, and I'm in college. Also, I'm at a university and don't have a router. I just use the campus-wide wi-fi. Finally, my roommate has no problem accessing the internet in our room via ethernet or wi-fi, but I do. Thanks for the help everyone.
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Feb 5, 2009
Is it possible to use the second ethernet port on the Mac Pro to output internet to another computer or router?
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May 9, 2008
Basically, I have a wireless router in my house that my Mac Pro connects to from a seperate room. I have an xbox 360 in my room with the Mac Pro. Without buying the $100 360 wireless adapter, could I configure it so I could run my 360 into my Mac Pro's ethernet port and piggy back off of my Mac's wireless connection to get on Xbox Live?
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Jun 14, 2009
I used the MacRumors Buyer's Guide for several months to find the best time to buy a MacBook. I'd never had a Mac before and found it to be so valuable. I hope someone in the forum can be as helpful as the site has been.
Yesterday I bought a new MacBook Pro 13" and as a store option the RAM was doubled to 4GB. Everything has worked well so far, in both OS X and Windows XP through Boot Camp, except for either OS accessing the LAN cable on my home ADSL. Both my portable modem (EMobile network in Japan) and the wireless seem to work with no issue, and both OS will recognize the ethernet port. I'm concerned that perhaps the ethernet adapter was modified when the store installed the memory.
I can remove the ethernet cable from one computer (where it works without any settings changes on my Windows notebook) and plug the same cable into the MacBook and it will not be recognized. The Mac OS error is that no cable is inserted.
However, as it's my first Mac, I didn't know if perhaps some new settings are required to make things work smoothly. Is there any DNS settings etc. that must be set for it to connect? Also is there some kind of connection diagnostic that will specify the location of the error in the machine? I'd like to exhaust any option before shipping this back to the store to be repaired or replaced.
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Jan 3, 2010
First I have an early 2008 Mac Pro with 2 Ethernet ports. Port 1 works but port 2 doesn't. Do I have to lug this BIG machine into an store or do they come to the house and fix it. I have the 3 year Apple Care. The closest store to me is 75 miles away.
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Nov 11, 2010
I'm looking to add a second ethernet port to my MacBook Pro using this product designed for the MacBook Air: [URL:...] Comments on the Apple site indicate that the device can be used with other computers, but I want to make completely sure it's going to do what I want it to do before I make the purchase. The reason I'm looking to do this is that I want to link my MB (via ethernet) to another laptop running Windows 7 Ultimate and use the Microsoft Remote Desktop Client to operate programs installed on the WIndows machine. The catch is that the internet at my current location (a university accommodation building) is also supplied by ethernet LAN and has some kind of detection system that prevents unauthorised routers from accessing the internet. So basically what I want to do is have the university LAN/internet running into the existing ethernet port on my Mac and then connect the ethernet port on the windows machine to the USB/Ethernet adapter plugged into one of the Mac's USB ports. The Windows machine does not have to have internet access. Is this possible? Will I be able to configure the two ethernet ports separately to operate two network connections? I understand the connections would require a different subnet mask and possibly a static IP for the computer-computer connection. That was a bit long-winded in the end.
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Jul 27, 2008
i have my mac pro using one ethernet port for net connection can i put a sec cable in the other port connect it to my macbook pro and share the connection?
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Nov 14, 2008
I want to set up my dual gigabit ethernet as a network team; one for incoming traffic and one for outgoing traffic. (My machine acts as a server, with 2 internal raid striped 1 TB hard drives, and 2 external raid striped 1 TB hard drives (time machine for the computer); and 2 10,000 RPM raptor drives striped as my boot drive. Anyways, enough about that.) How do I do this? I currently have both ports connected to my Airport extreme wireless N with Gigabit, is there a way to do what I want to do with these products, or is there something else that I need to get as well?
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Apr 19, 2009
i have a macbook and an airport express, which is plugged into a cable modem. i plan to buy a samsung blu-ray player (model 1600), which can plug into an ethernet port or, for more money, use wireless. i'd like to use an ethernet cable because I think the airport express gets overloaded sometimes (music stops if two computers using wireless, for example) and the wireless attachment for the blu-ray player is a little pricey. how do i create a second ethernet port? do i plug a router into my cable modem and then plug the airport express into one of the router's ethernet ports? if i do that, will it just work or is there some set-up work to do?
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May 17, 2009
I've had the 13" aluminum macbook since October 2008 and I've never had a problem with the wireless or an Ethernet connection. I turned on my computer the other day and I couldn't connect to the internet through my ethernet port. I've determined it's not my connection (friend's macbook connects fine) and I've tried connecting to other ports around my campus and it still doesnt work. On network settings, the light is green, cable detected, assigned an ip address and dns but it simply times out when I try to connect to anything (firefox, itunes store, mail, etc.). I'm fairly new to mac os x.
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Sep 16, 2009
Internet, file sharing and screen sharing all work on Ethernet Port 1. None of these work on Ethernet Port 2. Would anyone happen to know how to fix this problem?
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Oct 27, 2009
I have added a new switch to my network and it seems that ethernet port 1 does not work on this new switch. My network consist of dhcp server>switch 1>switch 2. Switch 1 is in my entertainment center and had ethernet port 1 connected to this switch since I have had my computer but when plugged into switch 2 which I have just added to my workstation and on the switch there is no lights and in system preferences port 1 flashes between not connected and no ip address. For port 2 it connects fine and both ports are set for dhcp. I have tried different cables setting a static address and can not find a reason why it won't work.
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Dec 2, 2009
Can I connect a wireless router to the second ethernet port of my MacPro? I have the main ethernet cord from the modem connected to my ethernet port 1, then I connected my router to my computer through ethernet 2, thinking that it would broadcast the internet connection. However, it is not working. The router is broadcasting, but the internet isn't working (and the light indicating internet connection on the router is yellow, not green). Is this something that isn't possible? Or do I need to change settings (not just plug and go)?
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Jul 18, 2010
Is it possible to somehow use both ethernet ports on the mac together for faster internet browsing?
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Mar 23, 2012
What is the process used to direct certain IP addresses or a range of IP addresses to the second ethernet connection on a Mac Pro? I have a set of Mac Pros that use the first connection for internet access and corporate server connections using Samba. But the second ethernet connection is used for a lan between the Mac Pros and printers. It currently works but it take a bit for the "connect to servers" dialog to connect to a Mac Pro on the lan because I think it is searching Connection 1 first which has hundreds of Windows servers attached to it. And it takes several minutes to connect if our service has an interruption on Connection 1. All of the Mac Pros and printers are set up to use a manual IP address (192.168...) The Mac Pro workstations use Snow Leopard and we have a Mac Pro Server running Lion Server that we use to conntrol a network RAID.
Info:
Mac Pro, Mac OS X (10.6.5)
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