Mac OS X 10.6 Server - as gateway

Discussion in 'Mac OS X Server, Xserve, and Networking' started by vladek, Jan 20, 2011.

  1. macrumors newbie

    Jan 20, 2011

    I have problem with Mac Mini Server as Internet gateway.

    Mac Mini Server (438) with two interfaces:
    - AirPort connected to home lan - (en1)
    - Ethernet connected to ISP - (for example) (en0)
    Mac OS X 10.6 with all updates.
    Service order in Network Preferences - Airport (first), Ethernet (last)
    Services - Open Directory, Firewall, NAT, DNS, DHCP

    If Ethernet cable is disconnected from the server then the server works fine:
    - Server Admin works
    - changeip returns correct IP/hostname
    - host return right answers
    - Open Directory and other services work

    If I connect Ethernet cable to server I catch problem:
    - Server Admin does not works - i can not connect thru fqdn, .local name,,,, localhsot
    - changeip returns not correct IP -
    - but host return right answers

    changeip does not help
    change order of network interfaces does not help

    Please help me to configure Mac OS X Server 10.6 as Internet gateway correctly!


    PS. I am sorry for my English.
  2. macrumors newbie

    Feb 8, 2011
    Not sure if it's the only problem, but I'm pretty sure your En0 (ISP/Internet) interface needs to be FIRST in the service order, not last. The LAN interface should be lower in the order than the public IP.

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