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  • 10:29:58 am on April 11, 2013 | # | 0
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    Change internet default route in Mac OS X to USB HSDPA modem stick with LAN’ certain subnet routed via a gateway in WiFi (en1).

    In my case DNS will go with the modem interface setting remain routed via USB modem stick

    before routing:

    $ netstat -nr
 
Routing tables
 
Internet:
Destination        Gateway            Flags        Refs      Use   Netif Expire
default            10.64.64.64        UGSc           72      137    ppp0
default            link#4             UCSI            0        0     en0
default            10.1.1.1          UGScI           0        0     en1

    Delete and add routes (desired LAN subnet 192.168.1.0/24:

    sudo route -n delete default 10.1.1.1
sudo route -n add default 10.64.64.64
sudo route -n add 192.168.1.0/24 10.1.1.1

    after routing:

    $ netstat -nr
 
Routing tables
 
Internet:
Destination        Gateway            Flags        Refs      Use   Netif Expire
default            10.64.64.64        UGSc           21        0    ppp0
default            link#4             UCSI            0        0     en0
default            10.1.1.1          UGScI           0        0     en1
10.1.1/24         link#5             UCS             6        0     en1
...
192.168.1         10.1.1.1          UGSc            0        0     en1
...
     


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