network utility.app: wrong interface names

Discussion in 'Mac Basics and Help' started by Cancelliere, Aug 26, 2010.

  1. Cancelliere macrumors newbie

    Joined:
    Sep 1, 2007
    Location:
    Parma - Italy
    #1
    In network utility.app I have the following settings:

    1. Airport (en1), IP 192.168.2.1, inactive
    2. Firewire (fw0), IP 192.168.1.9, active, 144 Mbit/s
    3. Ethernet (en0), no IP, inactive

    Why Airport and Firewire are "swapped"? I have never connected to my LAN with Firewire cable (I do not even know how to do it) and I am connected with Airport (everything works fine). Another strange behaviour is that:

    Code:
    MacBookPro:~ christian$ ifconfig fw0
    fw0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 4078
    	lladdr e8:06:88:ff:fe:f2:a6:f0 
    	media: autoselect <full-duplex>
    	status: inactive
    MacBookPro:~ christian$ ifconfig en0
    en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
    	ether c4:2c:03:0b:d5:f4 
    	inet 192.168.2.1 netmask 0xffffff00 broadcast 192.168.2.255
    	media: autoselect
    	status: inactive
    MacBookPro:~ christian$ ifconfig en1
    en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
    	ether 58:b0:35:7b:9a:ae 
    	inet6 fe80::5ab0:35ff:fe7b:9aae%en1 prefixlen 64 scopeid 0x4 
    	inet 192.168.1.9 netmask 0xffffff00 broadcast 192.168.1.255
    	media: <unknown subtype>
    	status: active
    
    With ifconfig if seems that Airport is en1 and Ethernet is en0... but who gave it that strange 192.168.2.X address? I have only one LAN which has a 192.168.1.X address.

    Cheers
    Christian
     
  2. wrldwzrd89 macrumors G5

    wrldwzrd89

    Joined:
    Jun 6, 2003
    Location:
    Solon, OH
    #2
    Firewire can be used for a direct connection between two Macs. It is NOT meant to be used to connect to an Ethernet/wireless network.

    As for your other questions... I have no idea! Check your preferred connection order in Network (System Preferences), though.
     

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