MBP on G5 over airport sharing internet (Firewall issue)

Got my ADSL/router modem (intertex IX66 edflc) with two e/net ports feeding one PC and my G5 quad with airport fitted. Recently got a Mac book Pro. Originally i could not get my MBP to get an internet connection using dhcp from the G5. The for some odd reason i got one then lost it again. Then i regained it again so i noted the ip the MBP gained, it was 10.0.2.2 which i understand is what the G5 would issue when its sharing its internet connection. So i setup a manual Ip address, mask and router and i all worked very well. No dropouts or anything bad, apart from some more range from the quad would be nice.
However the problem with this story is that the MBP looses its internet connection (not Airport network) if i switch the G5 Firewall on. I have Personal web sharing on as required on both G5 & MBP.
So is it possible to get internet connection sharing from my G5 and still have my firewall on (as i don't like it off) ? I would have thought the elegance of OS X would allow me to get good wireless networking without having to kill my G5 firewall... Or am i doing something wrong ?
MBP & Quad all up to date with patches etc...

Niel - Thanks for the good suggestion.
When tracking the blocked ports in the logs, i noticed that the ports were constantly increasing upwards and so couldn't open them u. So i tried to revert the MBP to DHCP and after 60 seconds it hooked-up to the G5 even with the firewall on and all protective modes also on (stealth, udp blocked...?).
So with a little patience on start-up i get a good wifi connection, but when changing from one website to another there is a noticable delay as it loads-up. Each page has about a 3 second delay to load. Any ideas what's causing this ?

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Airport and internet compatiblity issues

when i open Network Utility click on info and look at the network interface(en1) my IP starts with 144 instead of 192 does anybody know how to change it.
iMac 20inch Mac OS X (10.4.6)

I don't think that it is going to matter whether you connect to your DSL modem with Airport or with ethernet. It is the way the modem is configured that determines your Mac's IP address. The modem appears to be configured to negotiate your internet connection for you, probably using PPPoE to connect with your ISP and be assigned your external IP address and using DHCP to assign a local (internal) IP to anything that makes up your LAN, even if it is just your lone iMac.
There is a little app that you can get that appears in your finder menu bar that will tell you both your internal and external IP address, called IPMenu. Mine is installed in Apps/Utilities and is in a startuo item in my user account, so it isalways there without me having to remember to run it. Here is a link;
IPMenu

MBP C2D internet sharing over Airport

I have DSL connected to my MBP C2D over ethernet and want share this connection over the MBP Airport so other computers can wirelessly access the internet. While other computers can see and connect to the shared Airport connection on the MBP, however there is no internet available. I suspect this is because the MBP C2D is using 802.11N frequency and my other computers are G. How can I force the MBP to transmit in G?
Thanks

Whatever the problem is, it is certainly not related to the G or N standard.
Do you have "Personal Web Sharing" enabled under System Preferences-Sharing-Services? If not - try it.
Under System Preferences - Sharing - Internet review the "Airport Options...", some network names (containing special characters) and encryption settings (40-bit WEP with 5 char password or 128-bit WEP with 13 char password are normally most compatible) can cause problems. On some Windows systems you will need to set the Gateway and DNS IP addresses for the connection manually to point to the shared computer's IP address for Internet functionality to work flawlessly).
HTH,
Uwe

Sharing internet with Windows over AirPort

My G5 tower is connected to typical home router via ethernet. This gives it flawless internet connectivity.
To give better wireless access to mobile devices that come to that room for a visit in the far corner of the house where the G5 is located, I got a used AirPort Extreme card for the G5 and installed it, making sure to attach the antenna connector and small t-shaped external antenna (provided with original G5) plugged in the back.
When I powered the G5 back on, it immediately saw the AE card and told me to review settings and press Apply. Under Network prefs, under "Location: Automatic", I chose "Show: AirPort." An AirPort ID is shown, along with the default setting below: "By default, join 'Automatic.'" I left all other network settings as they are--I am not trying to use AirPort to connect the G5 to the main wireless router, since it already has ethernet.
I went to the "Sharing" pref and chose the third pane under it, "Internet". I configured it to read: Share your connection from built-in ethernet . . . using (checkbox on) AirPort. I clicked on the AirPort options in this same pane, and typed in a network name: "ABC wi-fi". Channel is Automatic, and--to keep things simple for now--I left encryption off. I pressed OK to close that small dialog, then hit "Start" in the Sharing/Internet pane, which makes its status message change to "Internet sharing on: sharing your built-in ethernet connection." Success! Well, no.
The AirPort icon in the menu bar was a blank quarter-pie. So I clicked on it, and saw the "open internet sharing" option. A panel appeared where I could turn airport on. I did. The grayed-out Network line of the pane then showed the name of the network I had created back in the Sharing dialog: "ABC wi-fi." And the signal level indicator shows full power, all to the right. All set? Nope! When I go to my Windows laptop and find this new network, I see two new options: One, strangely, is the "Computer Name" shown in the Sharing pref panel, and clicking on it to connect doesn't work. The other option is the network I actually named and shared, "ABC wi-fi," but when I attempt to connect to it, Windows (actually Intel PROSet/Wireless Wi-Fi Connection Utility) insists on stepping me through a series of complex security settings, when it would seem that no security should be required since I didn't enable encryption on the AirPort connection.
Giving up on those security settings, I go back to the Sharing control panel and turn sharing off. I hit the AirPort options button and turn encryption on I leave on WEP 40-bit, which requires me to type in a five character string. I do so. I click OK and restart internet sharing. Again, I am given confirmation of "Internet sharing on: sharing your built-in ethernet connection." I try to connect from Windows again, but am not even presented with the complex security options. It just says "Unable to connect," even though it can clearly see the SSID. I try the same a few more times--no luck. I go get an iPod touch and select the new G5-based network--type in the five characters required for WEP 40-bit, and jump right on. Why can't my Windows 7 laptop connect?

Good advice from rccharles, do try that, but I'm wondering if it might be related to Digitally sign communications, even though this talks about server & connecting the other way...
http://allinthehead.com/retro/218/accessing-a-windows-2003-share-from-os-x

Airport iPhone Internet Sharing

hi,
I am trying to configure so that I can surf the internet on my iPhone through internet sharing my airport on MBP.
I have configured IP addresses manually and set the manual proxy to 10.0.0.1 on port 8080. When I ping the iPhone it responds between 6 & 8 times and then drops off never responding again until I start and stop airport and internet sharing. When i open Safari on the iPhone it instantly says it cannot find the server.
Personal Web Sharing is turned on. What am I missing here? This did work until I disconnected yesterday. Nothing changed in my settings and even though browsing was slow on the iPhone it was able to access webpages through Safari.
I'm thinking it is something to do with port 8080 ... it has become disabled for some reason.
Any ideas or pointers anyone?

I've been having the same problems as everyone else here. Trying to share internet connection from my ethernet wired iMac to my MacBook and my iPhone. Tried all the workarounds, but nothing works, or lasts very long.
Yesterday, I finally talked with AppleCare for over an hour. All their suggestions (trashing preferences, changing settings, etc.) failed, as well. The AppleCare person then put me on hold to speak to an engineer, who told her that Snow Leopard no longer supports Internet Sharing as of 10.6.1.
Not willing to accept that answer, I had them set up an appointment at the Apple Store Genius Bar for me, and after chatting with the Genius for a while, he also confirmed that Internet Sharing is no longer supported under Snow Leopard. Apparently, there were many hardware issues that the engineers decided to circumvent, and so did not include support for Internet Sharing with the internal airport in Macs. They said that the Airport it is intended to receive, not to send a signals! Yet, it worked fine, doing just that, under Tiger and Leopard! The only fix he could offer was to wipe my drive and take me back to 10.5, which I declined.
However both the guy at the Genius Bar and the lady at AppleCare inferred that Apple "may" release another update to fix this issue, if they get enough complaints and bug reports.
So, there you have it. Apple no longer officially supports Internet Sharing in Snow Leopard.

Printer Sharing works over wired network not over Airport - Why is this ?

Computer A (eMac, 10.2.8) has HP Laserjet connected via USB. Settings : Printer Sharing On, Firewall Off.
Computer B (G4 iBook, OS 10.3.9) when connected via ethernet cable (via router which shares my DSL line) can see and print the HP Laserjet.
Computer B when Airport turned on to join network via AX (plugged into router) cannot see any shared printers. Nor can I add Rendezvous, Appletalk or other printers.
I only just added Airport capability to the iBook, other network features (internet access, file-sharing with eMac etc) all seem to work fine.
If I plug the Ethernet cable in, computer B can now see the shared printer. If I then unplug the Ethernet cable, reverting the computer B to Airport access only, I can see and print to the shared printer.
Clearly, therefore I can print over Airport to the shared printer, but the mechanism of plugging in and then unplugging the ethernet cable isn't exactly an advert for Apple simplicity and elegance.
Would anyone care to enlighten me as to what is going on and how to fix it properly ?
Kind Regards
Eoin sharkey
UK

Greg,
many thanks for the prompt reply, and this looks a good suggestion. To clarify; I have a wired router (Netgear, can't remember exact model) and 2 Airport Express (which I call AX-A and AX-B). I use AX-A as a wireless access point and it is wired into the Netgear router. AX-B is used to provide internet access to an older iMac in a remote part of the house (not that my house is very big or anything, and is not (I believe) relevant to my printer sharing issue.
I am now using AX-A to allow my iBook to join the network. I will check when I return home, but believe the AX is already set up not to distribute IP addresses - these are from the (wired) router.
Cheers
Eoin,
UK

How can I use Internet Sharing with Firewall on ?

Hi,
My PowerMac G5 is connected to the internet via Ethernet. I share the connection to a Powerboog via Airport using internet sharing. Everything is working fine except when I turn the Firewall on. After reading http://docs.info.apple.com/article.html?artnum=107653 I tried opening port 443 but it still does'nt work. I'd like to be able to use internet sharing with the firewall on. Anyone can help me ? Thanks!

Hmmm, how curious... I never had to do that in 10.4.7 or 10.4.8... the only ones I ever tried Internet Sharing with.
I'm wondering if turning the Firewall on after the Internet sharing is what's doing it? Just for kicks you might try turning off Internet Sharing, then Firewall on, then turn on Internet Sharing.
If that doesn't work, then I'd personally try trashing...
/Library/Preferences/com.apple.sharing.firewall.plist
Then reboot and try the Firewall again.

Airport network and sharing Internet connection

Hello all,
I have hit this problem with sharing an internet connection on an airport network. Maybe its a simple fix, maybe it a "can not be done", answer.
My set up may be a little hard to describe. To explain, completely wireless set up in my network, 1 x imac and 1 x powerbook, all on airport and using an airport express. This includes my new printer. All connected through airport express network, call it network A.
Up till now i had a modem with an ether net cable plugged into the airport express. All was fine.
I am in jakarta, the cable internet providers here are hopeless, slow connection speed.
Last month a new wireless internet service was released. Called 3.5 G. Its lightning fast and reliable. Basically you get a wireless USB modem attach it to your computer and you are always connected to the internet wirelessly. You can travel anywhere with it. The 3.5G is primarily for mobile phones but i use it just for internet. This modem is connected to my powerbook and works great.
Now, the useless cable internet connected to my airport express is still connected for my Imac to use.
My problem is that i would like to share my high speed internet connection from my laptop to my imac. Problem is that when i allow sharing from my laptop, the intenet works fine on both machines but on the powerbook, which is doing the sharing you get an arrow symbol through the airport icon at the top.
The laptop can NOT access the local airport express network A. Hence i cannot use the printer or see the imac. That is my problem, i cannot print from the powerbook unless i stop sharing. When you share an internet connection the sharing computer seems to create another computer to computer network and does not join the existing arirport network.
This is probably a little confusing. Hopefully, someone may have some ideas. My alternative is to buy a new fixed position modem/router for the 3.5G system. Its about $600. Ouch.
Any ideas
thanks for the interest.
joe

Selamat Phil Smith,
Actually do we know each other, cause i know a phil smith.
Actually an ether net cable is OK for the short term. But if i get another computer it may get complex. Spent a lot removing cables too.... Looks like i will have to buy the special modem router... Painful $600.
This share internet thing over airport looks like a great idea till you realise it disables access to the ariport network for the computer doing the sharing.
Cheers and thanks for the idea
joe

Internet Sharing and Firewall

I am having a difficult time using internet sharing to download files and access email using Mail. I can go online with my browser, but other services like Mail and downloading files doesn't seem to work.
I feel like this is a firewall issue. Can someone tell me how to configure my firewall settings to work better with Internet Sharing?
I am using a G5 Mac to Internet Share to my MacBook via Airport.
Thanks for your help.

If you need help opening the right port in the Shaing
Pref Pane... give a hollar.:-)
Maybe you can help me? I tried to set up new openings in the Firewall pane, but it didn't seem to do anything. Am I in the wrong place? I did this on the mini that is doing the sharing. I selected "new..." and typed 110, 25 in the TCP field.
(I first noticed the "browser ok / mail not ok" issue when using Parallels, and then saw the same with Mail in OS X. Connecting directly to an Airport Express works fine, so it looks like it's the sharing.)
mini dual core, MacBook C2D Mac OS X (10.4)

XP can't connect to iMac-based AirPort for Internet Sharing

(I apologize if there's already an answer to my issue out there somewhere; I promise that I searched for it before posting)
Hello!
I have an iMac running Tiger (and connected to the internet via ethernet -> cable modem), and I want to use it as a hub for encrypted Internet Sharing. I have two other machines, an older iMac and a WinXP laptop. As you might expect, I have no problem whatsoever setting up the network and getting the old iMac to see it, connect, and so on. The XP machine can see the network, and, when encryption is off, can connect to it, but I really want to run encryption.
I'm sure I'm not the first person to run into this problem, and I have found a couple of websites that discuss it -- however, I can't seem to make it work. Does anyone out there in forum land know of a step-by-step tutorial that would cover setting up encrypted Internet Sharing (over AirPort) on an iMac so that another iMac and an XP machine can connect? Any guidance you can offer would be most welcome.
Thanks in advance,
Dieter

Just to give a bit of an update, I chatted with Apple support, and in essence they told me that I had to take this up with the manufacturer of my XP laptop's wireless card -- understandable, given that my old iMac works just fine on the network (so the problem really isn't on the Mac end of things).
I tried using the information at http://www.macosxhints.com/article.php?story=20030803030354585, but no dice, unfortunately; maybe that will work for someone else, however.
I also found out something new -- I thought my XP laptop could connect to my AirPort network when encryption was off, but I was wrong. Instead, it just says "trying to connect," but nothing ever happens. But I CAN use the XP box to connect to other wireless networks in the neighborhood (shh, don't tell). So it looks like there's a deeper issue.
Please -- I know that someone out there has an answer; I really need to be able to make this work.
Thanks again,
Dieter
iMac dual core Mac OS X (10.4.5)

Can you use Airport for internet and Gigabit Ethernet for file sharing?

i would like to complicate my network setup by using my Airport connection to the internet for internet access and then use the Gigabit Ethernet connection between my G5 tower and the MacBook Pro for file sharing, Compressor's distributed rendering, and possibly iTunes music/video sharing for Front Row.
is this possible? could i just run a cat 6 cable between the two and network them together? or do i need to get a Gigabit Switch?
i suppose i could just try running the cable between them and see what happens. i don't think these new machines require cross-over cables since the ethernet ports auto-detect that now, but is a cat 5e or cat 6 cable required for Gigabit speed?
thanks,
scott
PowerMac G5 2.5GHz Mac OS X (10.4.5)

Yes it would work. The Ethernet network would be used for local file transfers and the Airport for internet. However you will need to make sure Ethernet is at the top of the list of network ports in the Network Preferences.

Sharing airport express internet connection with router and wired network

Dear,
I want to set up the following network, but can't succeed.
Components:
2 Powermacs quad G5's (airport and two ethernet ports)
2 Powerbooks G4 (airport and 1 ethernet port)
1 broadband wired router (1 Wan and 4 Lan ports)
1 airport express
1 cable internet connection.
1 LaCie Ethernet Disk mini 300 GB
The internet connection is at the other site of the office (little architecture office). It is not possible to get the internetconnection directly to the desk wth the computer. 1 Powermac G5 is set up to share his internet connection. (Share via airport with ethernet 1). The ethernet 1 port is connected to the Wan port of the wired router. The other Powermac G5's ethernet 1 port is connected to Lan 1 of the router. The LaCie Ethernet Disk mini 300 GB is connected to the the Lan 2 of the router.
All the conputers get their IP adresses bij DHCP. The router is set to distribute IP adresses. Without the router and the LaCie everything works fine. There is internet connection on every computer and filesharing in between them is possible.
I like to be able to do the following.
Use airport connection on the two powerbooks, for internet and access to the network. Use the wired connection between the powermacs and the lacie for filesharing. On the second powermac use internetconnection through the router. With this configuration is it possible to copy files fast between the powermacs and the lacie harddisk.
At the moment I'm trying to get internet connection on the second powermac. The ethernet port gives me a proper IP-adress and tells me that I can connect to the internet, but it won't let me go on the internet and when I turn the airport back on, safari buggs. Without the ethernet cable connected I can go on the internet without anny problem, but off cours the fast filesharing isn't possible any more.
A drawing of the desired network can be downloaded at the folowing website
http://homepage.mac.com/maesen_jeroen/FileSharing14.html
Is there a possible sollution to this problem?
thank you verry much
Jeroen

Disable the DHCP server on your wired router. Since your Power Mac G5 Jeroen is sharing Internet, it is already providing DHCP.
Use airport connection on the two powerbooks, for internet and access to the network.
Sorry, but it is not possible for the PowerBooks to access the subnet created by the Power Mac G5 Jeroen.
Use the wired connection between the powermacs and the lacie for filesharing.
Shouldn't be a problem.
On the second powermac use internetconnection through the router.
On Power Mac G5 Jeroen, you will need to disable the firewall or open the ports through the firewall needed by Power Mac G5 Nico to access the Internet.
Is there a possible sollution to this problem?
What you have is incredibly complicated. A much simpler solution is to
Get a 2nd AirPort Express (AX).
Use WDS to wirelessly connect the 2 AXs.
Connect an Ethernet switch (or hub) to the Ethernet port on the 2nd AX.
Connect all of your Ethernet clients (2 Power Mac G5s and LaCie) to this switch (or hub).
In this configuration your PowerBooks will have wireless access and all of your Ethernet devices will get IP addresses from the AX connected to the Internet.

Airport and internet sharing turns off by itself

Hi everyone, I have an imac that I purchased earlier this year, and I use internet sharing to get internet for my ipod touch. Until a few months ago, this worked fine but now airport and internet sharing turn off every time I restart the computer and I have to turn both back on every time. Is anyone else experiencing this problem or know hot to fix it?

Hi and Welcome to Apple Discussions...
Download and install the v10.5.8 combo update available here.
http://support.apple.com/downloads/MacOS_X_10_5_8_ComboUpdate
One of the "fixes" includes: - compatibility and reliability issues when joining AirPort networks.
After the installation, repair disk permissions.
Quit any open applications/programs. Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. That can be ignored. As long as you see, "Permissions Repair Complete" when it's finished... you're done. Quit Disk Utility and restart your Mac.
Carolyn

Can't share internet over airport anymore

I’ve got DSL hardwired to a G5.
It has an airport that used to share my internet connection wirelessly to several laptops.
The other day, I restarted the tower, and I was unable to reconnect to the web from the laptops.
The little airport icon with the antenna/up arrow doesn't show up anymore.
I can use the airport on the tower – the card still seems to work so that’s not it. Something in my G5 system (10.4.6) won’t allow internet sharing to airports anymore.
HELP
Eric

Have you gone to system preferences -->sharing-->internet
check to see if it is switched on.

Sharing Internet with AirPort

Hello
Okay to start my iMac here is connected directly to a DSL modem with no router through Ethernet. I saw that you can share Ethernet connections and use AirPort to create a Computer-to-Computer network and enable internet connection sharing. Would this work properly with a Windows XP computer with a wireless card in? I want to be able to get that computer on the net.

Okay to start my iMac here is connected directly to a
DSL modem with no router through Ethernet. I saw that
you can share Ethernet connections and use AirPort to
create a Computer-to-Computer network and enable
internet connection sharing.
System Preferences > Sharing > Internet
Share built-in-ethernet connection via Airport.
Would this work properly
with a Windows XP computer with a wireless card in?
Yes, but you won't be able to use a password with an XP PC therefore is not recommended.
I would recommend getting a wireless router.
iFelix

MBP on G5 over airport sharing internet (Firewall issue)

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