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yg17

macrumors Pentium
Original poster
Aug 1, 2004
15,030
3,009
St. Louis, MO
Is there a way to make Internet Sharing share an ethernet connection over Wifi, but, not use DHCP and instead act as a regular switch? I'm in a dorm, and IT isn't a huge fan of DHCP servers besides their own running on the network. Thanks
 
yg17 said:
Is there a way to make Internet Sharing share an ethernet connection over Wifi, but, not use DHCP and instead act as a regular switch? I'm in a dorm, and IT isn't a huge fan of DHCP servers besides their own running on the network. Thanks
Just get a router.
 
Turn off 'Distribute IP addresses' in the network tab of the Airport admin utility & the airport will act as a bridge, your laptop will use the existing network for its DHCP settings.
 
evil_santa said:
Turn off 'Distribute IP addresses' in the network tab of the Airport admin utility & the airport will act as a bridge, your laptop will use the existing network for its DHCP settings.

Im not using an Airport base station. I'm using internet sharing on my G5 so my Powerbook gets wireless
 
Are you trying to make the Airport Wireless network point you trying to share static, or the Ethernet link to your DSL / Cable modem?


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840quadra said:
Are you trying to make the Airport Wireless network point you trying to share static, or the Ethernet link to your DSL / Cable modem?


Not quite sure what you mean exactly


I have my G5 plugged into the campus network, and my G5 has an Airport card in it. Id like to use OSX's internet sharing feature to allow my PowerBook to access the internet over Wifi since there isn't campus wireless in my dorms. However, if IT discoveres a DHCP server on the network, they aren't too happy and will ban people from the network for a few days, so I'm trying to avoid that.
 
yg17 said:
Not quite sure what you mean exactly


I have my G5 plugged into the campus network, and my G5 has an Airport card in it. Id like to use OSX's internet sharing feature to allow my PowerBook to access the internet over Wifi since there isn't campus wireless in my dorms. However, if IT discoveres a DHCP server on the network, they aren't too happy and will ban people from the network for a few days, so I'm trying to avoid that.

Ok that answers my question., but why don't you make a secure wireless network and not broadcast the SSID?


Anyway
I believe the answer is yes, as I have done similar (the opposite actually) with my Ibook sharing it's cable connection to an older mac, while the ibook connected Wirelessly to my cable modem.

What you will need to do is setup a static IP address on your Airport wireless computer sharing the connection, it has to be on a unique network and subnet when compared to your Built In Ethernet connection your G5 is using to get out.

Example below

On Airport card on the G5
IP = 192.168.2.1
netmask= 255.255.255.0
Router = NONE
DNS Servers = NONE

Airport on iBook
IP = 192.168.2.2
Netmask = 255.255.255.0
Router = 192.168.2.1
DNS Server = (You will have to get this (or these) IP addresses off of your OTHER connection on the G5( Built In Ethernet)) As the DNS servers are on the outside network.

I know this setup works the other way around (sharing the Built In Ethernet) so I don't see why the opposite wouldn't work.

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