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You are here: MacNN Forums > Enthusiast Zone > Networking > networking two macs......

networking two macs......
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rich82fox
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Feb 19, 2008, 08:16 AM
 
hi

I want to directly link my Mac Pro to my Powermac g4

do I specifically need a CROSSED ethernet cable - or will any ethernet cable do?

rich
PowerMac G5 Dual 1.8GZ, 2GB RAM, 150 & 300 GB Internal Hard Drives, AGP Geoforce 5200 64MB Graphics Card, Superdrive.
     
Sherman Homan
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Feb 19, 2008, 08:49 AM
 
Gigabit ethernet does not require crossover cables, both the G4 and the MacPro have 'em, so you should be good to go with a regular cable.
     
ghporter
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Feb 19, 2008, 08:56 AM
 
For best results, you'll want a high-quality cable, preferably a Cat6 cable. It's not "required" to connect the two machines, but it will give the connection an extra level of immunity from noise.

Glenn -----OTR/L, MOT, Tx
     
mduell
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Feb 19, 2008, 12:14 PM
 
Originally Posted by Sherman Homan View Post
Gigabit ethernet does not require crossover cables
Auto MDI/MDI-X is optional, not mandatory, for 1000BASE-T (802.3ab); see clause 40.4.4 in IEEE 802.3-2005.
     
Sherman Homan
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Feb 19, 2008, 12:40 PM
 
Right, that is why I said 'does not require", or am I missing your point?
     
Simon
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Feb 19, 2008, 03:38 PM
 
Originally Posted by Sherman Homan View Post
Right, that is why I said 'does not require", or am I missing your point?
He's trying to make the point that Auto MDI (the detection if a port is backwards and subsequent connection re-match) is not a requirement for Gigabit so in principal you go out and find a Gigabit port that doesn't do Auto MDI and in such a case you'd actually need a crossover cable.

That entire (pedantic) point is moot though because we are on a Mac board and all current Macs support Auto MDI. They have for quite a while actually. Furthermore the OP is trying to connect two Macs that support Auto MDI as well. So the OP definitely doesn't need a crossover cable (just like about 99.9% of the Mac users out there) and your advice was absolutely right.
     
rich82fox  (op)
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Feb 19, 2008, 04:08 PM
 
FORGOT TO MENTION

I will also be networking my Mac Pro to my iBook G3 (clamshell)

will that require a crossover network cable?

rich
PowerMac G5 Dual 1.8GZ, 2GB RAM, 150 & 300 GB Internal Hard Drives, AGP Geoforce 5200 64MB Graphics Card, Superdrive.
     
ghporter
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Feb 19, 2008, 09:19 PM
 
No crossover needed-the Mac Pro has an "autosensing" Ethernet adapter which adjusts as needed.

Glenn -----OTR/L, MOT, Tx
     
Simon
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Feb 20, 2008, 03:53 AM
 
Yep. That's exactly the point. Since the MP does Auto MDI it will adapt to whatever comes from the iBook regardless to the typ of Ethernet cable you use.
     
   
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