Imac sharing my wireless to a PC over ethernet (and switch)

So I've got next to me an imac currently connected via a wireless N time capsule upstairs. I'm trying to get my PC hooked up to my Imac via "Internet Sharing". At this point I have...
Base station wireless-->Imac Downstairs-->Straight through to switch-->Straight through from switch to PC's NIC. I have a constant ping on my PC pinging my router's default gateway, and a ping on my iMac pinging the static IP address I set my PC to (Which is on the same subnet as the rest of my network).
Any ideas why they are just timing out and I have no connectivity?

IP address of my mac connection to the base station is 10.0.1.5, 255.255.255.0 subnet, router (Default gateway) address is 10.0.1.1
IP address of my iMac's ethernet going to the switch is 10.0.1.10, 255.255.255.0 Subnet. "Router: 10.0.1.1"
There's your problem.
You have the SAME subnet for both interfaces on the iMac. This is not valid, and will prevent internet sharing from working
Each interface has to be in a different subnet. If your wireless link is using 10.0.1.x/255.255.255.0 then your wired interface has to use something different. Choose either something else in the 10.x.x.x range (e.g. 10.1.1.x/255.255.255.0), or something completely different (e.g. 192.168.1.x/255.255.255.0).
Your PC will need to have an IP address in the same subnet as the iMac's wired interface and its gateway address should be the address set for the iMac's wired interface.

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IP address of my mac connection to the base station is 10.0.1.5, 255.255.255.0 subnet, router (Default gateway) address is 10.0.1.1
IP address of my iMac's ethernet going to the switch is 10.0.1.10, 255.255.255.0 Subnet. "Router: 10.0.1.1"
There's your problem.
You have the SAME subnet for both interfaces on the iMac. This is not valid, and will prevent internet sharing from working
Each interface has to be in a different subnet. If your wireless link is using 10.0.1.x/255.255.255.0 then your wired interface has to use something different. Choose either something else in the 10.x.x.x range (e.g. 10.1.1.x/255.255.255.0), or something completely different (e.g. 192.168.1.x/255.255.255.0).
Your PC will need to have an IP address in the same subnet as the iMac's wired interface and its gateway address should be the address set for the iMac's wired interface.

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Hello.
Could somebody tell me if there is a Cisco Router that can work ATM over ethernet. This ATM circuits comming from an ethernet interface sholuld be transported as pseudowires through an IP/MPLS Backbone. Routers 12000 can do this? wich version do I need?
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Hi Narayan. Thank you.
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I have an iPod Touch with which I want to connect to the Internet.
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Have you repaired Permissions lately?
Might try trashing these files & reboot...
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okay, so I have my airport express plugged into the sterio, but it's not permitted to be connected to the office network. So, I plug my macbook pro into the ethernet in the wall, and connect to airtunes over the airport. It plays fine for a few minutes then loses the remote speakers.
Is there any way to configure it to know that the only thing it does over airport is airtunes?

for anyone who might be interested, it just started working on its own.

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Running Mavericks. Have a 2 TB surplus Time Capsule that I would like to use to back up an iMac using an ethernet cable between the iMac and the TC rather than wirelessly. (I am trying to avoid yet another Wi-Fi device on my Airport Extreme network and the reduced performance that comes with extending a network.) Indeed I have made this work per Bob Timmons prior posts by hooking the TC to both the iMac and temporarily to the Airport Extreme via ethernet cable.
Due to house configuration, it is not possible for me to permanently run ethernet between the Airport Extreme and the TC. In my experimenting, after setup I unhooked the connection between TC and Airport Extreme and the iMac and I thought the iMac was continuing to recognize the TC and backup to it over ethernet, but after a re-start I cannot get that configuration to work again.
1.     Do I understand that the design of the TC is such that it cannot be used as an attached ethernet hard drive for Time Machine backups unless it is at all times also connected to a [Airport Extreme] router?
2.     If No. 1 above is true, is there any wireless configuration of the TC that would allow for the benefits of ethernet connection to the iMac but not have the permanent router/TC ethernet connection?
3. Finally, if I am out of luck on ethernet only from the iMac, since I don't use the iMac wirelessly for anything, can a create a new network with the TC and have the iMac wirelessly connect with that without a permanent router connection?
Thanks very much

Thanks for your insightful questions and comments!
If you have an Ethernet cable connected to the iMac, the iMac will default to the Ethernet connection, even if wireless is on at the iMac.So, if you want to backup the iMac over wireless, you will have to manually disconnect the Internet Ethernet cable at the iMac every time that you want to back up the iMac. Once the backup over wireless is completed, then you will have to connect the Internet Ethernet cable again to the iMac.
Is this true? I was referring to the ethernet cable running between the iMac and the TC, not the main ethernet connection to my home network. My entire goal here has been to simply hookup the TC to the iMac solely for backup purposes via ethernet. However, you have convinced my I cannot do that without the TC also being connected to the Airport router at the same time., which I believe is not practical for the reasons below. So again, assuming that the iMac is connected to the TC via the TC's separate wireless network, is not the ethernet cable between iMac and TC not used - or will the iMac communicate to the TC via faster ethernet instead of defaulting to the slower wireless network?
The iMac is about 12" away from the iMac and I am not trying to hide it - I just want to use it as a ethernet backup disk!
I guess I'm wondering why.....if the Mac connects to the AirPort Extreme using Ethernet.....you cannot connect the Ethernet cable from the AirPort Extreme to the Time Capsule first, then connect another Ethernet cable from the Time Capsule to your iMac.
Then, the iMac is always connected using Ethernet, and you won't have to use wireless at all. You can backup over the much faster Ethernet connection. Everything will stay connected all the time.....no cable disconnecting.....and you have the best performance as well.
Good question! My newly remodeled house has an ethernet network wired throughout. One ethernet outlet per room. (The Airport Extreme router connects to a Comcast modem via the ethernet network, each in separate rooms. I was able to connect the TC to the Airport router using an 80 foot temporary cable running between rooms.) Maybe there is a way to have the TC "share" the iMac single ethernet port in the room that I am not aware of?   Appreciate your thoughts.
But, again....If the TC and iMac will be close to each other....why mess with wireless and cable swapping when you can do everything over Ethernet, and always stay connected to the AirPort Extreme network.
You are preaching to the choir. I don't want to use wireless at all for backup or even have it on for my iMac. The lack of a connection between TC and Airport router is what seems to be stopping me.
The TC will create both a 2.4 GHz and 5 GHz network automatically. The iMac will look at both signals and choose the best with which to connect. If the iMac has line-of-sight, or is in the same room as the TC, then it will likely connect at the faster 5 GHz connection.
And here is the last puzzle. Assuming that I cannot resolve the ethernet to router issue, I am today backing up to the TC (also connected via ethernet cable to iMac) via the separate WiFi network created by the TC. The backup has worked several times today. Despite this, Airport Utility reports that the TC cannot be found even though it was "previously part of the network." Any ideas on that one?
Thanks

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Please check the speed of your connection on this site.
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Thanks Don.
Before yesterday, the airport extreme base station (AEBS) was connected to my cable from the internet company and working just fine (receiveing a valid IP address and all). Yesterday, I get home from Macworld and my wife tells me we haven't had internet. Upon investigating, I find that the IP address that my AEBS is getting over DHCP is in the 10.xx.xx.xx format. My AEBS is still connected to the cable from my ISP and my computer is getting a full reception over my network with the AEBS, but no internet. I then connect the ISP's cable directly to my iMac over ethernet and PRESTO! a valid IP address in the 64.xx.xx.xx format and internet. My ISP tells me it's probably my AEBS. Today I hard reset the AEBS, re-configured it and got the same negative result (an IP address in the 10.xx.xx.xx format). I have an airport express (express) and decided to try that. I reconfigured it as a base station, and it worked...temporarily. Initially I got a valid IP address in the 64.xx.xx.xx format, internet worked great. I moved it around the room a couple times trying to find an optimal location and it started having the same problem as the AEBS, the only IP address it got from my ISP was an invalid or non-working IP in the 10.xx.xx.xx format. The only similarity between the "outage" of the AEBS and the express is that they were plugged into the same outlet when they went "out". My wife said that yesterday, prior to the AEBS going out, it had accidentaly been unplugged from the wall, and then immediately re-plugged. I'm convinced it's either a power surge issue of some sort which fryed them both (except I am getting an IP address, albeit an imperfect one), incompatible firmware, a virus, or my ISP... I'm really hoping it's the ISP.
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Both ethernet and wireless time-out trying to connect

I'm having a problem with getting my laptops' IP assigned by dhcp. Both over ethernet and wireless.
I have no problem connecting to my WPA connection at home, but now I'm at my parents for a week or two, it refuses to connect to their WEP network.
To connect to my WPA network I run this script from rc.local, which works fine on startup.
ifconfig ra0 up
iwconfig ra0 essid *********
iwconfig ra0 ap **:**:**:**:**:**
iwconfig ra0 rate auto
iwconfig ra0 channel auto
iwconfig ra0 mode Managed
iwconfig ra0 txpower auto
iwpriv ra0 set AuthMode=WPAPSK
iwpriv ra0 set EncrypType=AES
iwpriv ra0 set WPAPSK=***************************************
iwpriv ra0 set TxRate=0
dhcpcd ra0
So for the WEP network, I have commented all that out and changed rc.conf like so:
lo="lo 127.0.0.1"
eth0="dhcp"
ra0="dhcp"
wlan_ra0="ra0 essid ***** key *******************"
WLAN_INTERFACES=(ra0)
INTERFACES=(lo eth0 ra0)
gateway="default gw 192.168.0.1"
ROUTES=(!gateway)
But when I try to connect it just returns "Error, ra0: timed out".
I have also tried modifying rc.local (appropriately i think), but that seems to time-out too.
This wouldn't be so bad if I had the option to connect by ethernet, but that doesnt work either! It also times out, just like the wireless. I don't think it is the router, as all the other computers in the house work fine, both wired and wireless. But I don't think it's a driver issue either, as I can see all the AP's in kismet, and also I used the ethernet port when I first installed Arch a couple of months ago. I assume it's dodgy config files or clashing commands or something, but I've looked in the wiki and other forums etc, and I can't see what I'm doing wrong.
Any help would be very appreciated.
Thank you.
Paul

Make sure about the addresses for the LAN the router at your parents is using - they are not necessarily the same.

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This device also does dvi over ethernet and it mentions dual link capacity.
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Does Lookout have a driver for SLC 5/05 and 1500 over ethernet

Does Lookout communicate with the AB SLC 5/05 over ethernet and the AB 1500 via the Net DNI over ethernet ?

Several years ago (back in Lookout 3.8 days) there was ethernet for AB SLC-5/05, it was a choice on the pull down menu for the communications type. It works great.
then in the days of Lookout 5.X, NI removed the ethernet for AB SLC-5/05. I believe the issue was that some users were having difficulty in understanding the I/O addressing, expecially when they would have an analog input/output card in the chassie. The issue is that RSLogix 'neatly' organizes this I/O table for us, however, NI can only get the I/O table in its 'raw' form. And this caused confusion for users not experienced with how the I/O table is truly layed out. A user can experiment with a bench/test system and see how the I/O is layed out and get a good understanding. But a another method is to write the analog input value to a "N" file address, and use that in Lookout (remember only the I/O is the issue) Also, you can have Lookout write to another "N" file address, and in the SLC, move that "N" address to the Analog Ouput.
I still have a SLC file for Lookout that has the ethernet enabled (works with Lookout V5.x) but I bet Ryan can send you one if you need it.
I have upgraded to Lookout V6.2 and making a driver object to talk to AB SLC-5/05 on ethernet works great. (I love native drivers, and hate using RSLinx OEM to do OPC (for out ControLogix5000 processors)
If a person can work thru how I/O tables are truly layed out (one big matrix actually) go direct and dont' use OPC.
Remember, this isn't a fault/limitation of Lookout or NI, it is how AB layes out their I/0 table, and how the addressing we see in RSLogix is actually not the true representation of the actual matrix. (and this matrix is all that is actually available, AB just makes it more 'readable' because you (or who ever setup the chassie configuration) told RSLogix what cards are in which slot, so RSLogix can minipulate the table to show it to you more 'pretty'.
If NI would add a chassie configuration to the AB SLC driver, then this issue would not exist. But I don't think we want to do that.
Hope this was helpful!
Rich Anderson

Streaming iTunes (shared library) video over ethernet...

I'm hoping someone with combined iTunes and networking savvy might be willing to help me out here. Here's the setup,
I have an Intel iMac hooked up to Fantom 1TB drive via USB 2.0 (iTunes library on external). The iTunes library is shared to an iBook G4 over ethernet via a Linksys Wireless B router (but both comps are wired in for max speed). (To be clear, when I say 'shared' I mean that I open iTunes on the iBook with it's own library and select the shared iMac library from within the iTunes GUI). When I go to play videos over the shared library on the iBook they are quite choppy and slow and I'm wondering where the bottleneck is.
I'm using Cat5e cable (1000Mbs+ so far as I can gather), but the router ports are 10/100 as is the ethernet port on the iBook (max 100Mbs). Further, the iBook has only 32MB of VRAM (although I've upgraded the RAM to 1.12GB). The iMac is running Leopard 10.5.5, iBook running Tiger 10.4.11, both machines running iTunes 8.0.1. I'm presuming that the read and transfer rates of the external are not the issue here because there are no problems viewing on the iMac, but I could be wrong.
So is the bottleneck the 10/100 ethernet ports on the router/iBook, the iBook VRAM, or is there something inherent in iTunes library sharing itself that is causing the delays? I also have an Xbox 360 which reads the same shared library via Rivet/Connect360 over the same network and router and videos are fine on the Xbox which makes me think the problem is with the iBook or iTunes.
I ask because I'm considering upgrading the router, and even replacing the iBook, but if it's something to do with iTunes itself, then there's not much point.
Thanks to any and all who can offer advice.

This evening I tried to narrow down the problem further and I think it boils down to the iBook not being able to process the video data fast enough rather than the transfer rate over the network or something inherent in iTunes.
To do this I shared my library folder on the network and copied a file from it to the iBook's HDD, adding it also to iTunes locally on the iBook. The quality is the same whether I view it:
1) Through the iTunes GUI 'SHARED' library over the network
2) By opening it directly (using Quicktime) over the network through the mounted shared folder in finder
3) Viewing it in Quicktime directly from the iBook's internal HDD
4) Viewing it locally in iTunes from the iBook's HDD
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Hi
I've read various things about this on the forums here, but none of them seem to make a considerable amount of sense seeing as the person just magically works out the problem. So I'll attempt to describe my problem.
I'm trying to share my Intel iMac's Airport connection to another mac running 10.4.6 over ethernet. I'm using crossover cable, and so far I've got the two computers to recognise each other in Network tab of the Finder, so I can mount the other's HD on my desktop if i wanted. BUT, I am having no luck with sharing my internet connection, I have the 'Share my Airport connection over Ethernet' settings ticked in System Preferences on the iMac with airport, but the "light" on the network overview page is orange on both computers, and the one connected with ethernet does not connect to the internet.
Any idea what I may be doing wrong?
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You are sharing one connection from the main unit to a secondary unit. The secondary unit only has access through the main unit, so the system doesn't see a personal web connection, just a web connection. In order to share that connection, it must be seen as a "personal" or directly connected form of network. This is so that somebody can't just steal your connection and then filter it to a billion computers and hack you and really mess up your system. If you want to share that connection, I suggest you invest in a wireless router. Then you can share all peripherals from the main unit and other units in any configuration you wish, and then use your secondary(wireless) unit to share directly to the third unit(crossover cable) without having to set a bunch of manual controls and troubleshoot. Printers, some scanners, and sometimes even dvd burners can be shared across a router. And because the system reads two connections(comp-to-comp and comp-to-web) through the router, you can actually fully network all peripherals to work across each unit, so long as they all run the same versions of OS and software. Just remember, you get what you pay for with routers. $100-$200 should get you something decent and a USB speed-booster card wouldn't hurt if you can get it as part of the whole router package. I've used the same type of configuration and it has saved me days, even weeks of trying to move data onto cds and dvds to move between computers for using with different programs and tasks.
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I have an iMac G5 that has been working fine on my Airport Extreme wireless network for 3 years. Suddenly, I can no longer access the internet over my Airport connection. The computer is on my local Airport network wirelessly (I can access it from my laptop and share files). I can connect to the internet from 4 other computers connected to the same wireless Airport network (2 MacBook Pro's, 1 Powermac G4). In addition, if I connect my iMac to my laptop via a twisted pair ethernet cable and turn on internet sharing on my laptop, my iMac can connect to the internet. All systems are running 10.5.5 and no firewalls in place. I checked my internet preferences and they have not been changed from what they were before when it was working. DOES ANYONE HAVE ANY IDEA WHY SUDDENLY IT STOPPED CONNECTING TO THE INTERNET OVER MY WIRELESS AIRPORT CONNECTION?

Apple Discussions!
Suggest that you cross-post in the AirPort Forums
BTW: Typing in caps is considered shouting in cyber space. We can all hear you. Also, it's very hard to read.
Thank you for your consideration in this matter.

How do I share files between a PowerPC 8100 OS 7.6.1 and an iMac OS 10.7.4 over ethernet

How do I share files between a PowerPC 8100 OS 7.6.1 and an iMac OS 10.7.4 over peer to peer ethernet connection? I'm trying to get data off the old machine so I can retire it for good. Can I just save the data and worry about file conversion later?

Addendum
There is a relatively simple server-based way of avoiding difficulties with incompatible system versions et cetera. It could possibly be of some interest.
I tested the following between a System 7.5.3 PowerBook 540 and a Windows XP PC. It ought to work with a System 7.6.1 Power Macintosh 8100 and a MacOS X 10.7.4 iMac as well.
a) Download and install Microsoft Personal Web Server 1.0 for Macintosh onto the 8100. If the 8100 does not have a direct Internet connection, carry out the download on another computer, and then try to transfer the hqx file (as it is) on a CD-R (burn at a low speed) or a 1.44 MB floppy (use StuffIt Expander to decode the hqx on the 8100). Do not change or add anything after the installation; just leave the files as they are.
http://support.microsoft.com/kb/164571
b) Drag a compressed example archive (we can call it example_file.sit) to the folder My Personal Web Site (there are other files inside this folder; do not worry about them). Ensure that the compression format is compatible with a decompression tool on the receiving computer.
c) Many people have access to a router (wired or wireless) with a built-in Ethernet switch (usually something like four LAN ports). If applicable, disconnect any incoming Internet (the WAN port). If possible/necessary, switch off the wireless (see the router manual for details about this).
d) Switch off both computers (and the router).
e) Connect an AAUI to RJ-45 transceiver (such as the aforementioned Apple Ethernet Twisted-Pair Transceiver) to the AAUI port of the 8100.
f) Connect an Ethernet cable from the transceiver to the first LAN port of the router.
g) Connect an Ethernet cable from the second LAN port of the router to the iMac.
h) Switch on the router.
i) Start the computers.
j) The TCP/IP control panel on the 8100 is set to connect via Ethernet. DHCP Server is used in this case.
k) Open the Microsoft Personal Web Server control panel.
l) Click on the Start button.
m) Wait (can take a while).
n) Notice the exact address at My URL (under Monitor Web Site). Could be something like http://192.168.1.2 (depends on the router).
o) Launch a web browser on the iMac (I did the testing on the PC with Firefox and Safari).
p) Enter the exact address (see n above) in the browser's address field (http://192.168.1.2 in my example). Press Return. A standard web page should appear. Disregard this page for now.
q) Add the exact file name (example_file.sit) to the address shown in the field. The result would be http://192.168.1.2/example_file.sit in my case. Press Return.
r) The file should start to download to the modern computer.
All the above is intended for a local connection only (otherwise security settings become of importance), and should be considered purely experimental. There are further possibilities (including an FTP plug-in), but it also makes everything more complicated. I have not tested the behaviour with large files or with various files types. Sometimes the server may crash. If so, try a restart. Make sure that you have backup copies of important files already at the 8100 before you begin.
Good luck!
Jan

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