Comments on: How to create an IP Alias in Mac OS X using ifconfig

By: Will

Will — Tue, 26 Oct 2010 22:50:10 +0000

That would be ideal, but as far as I can tell IPAliases.conf is only in Snow Leopard Server by default. I’m sure you could manually create the appropriate file and enable ipaliases in /etc/hostsconfig though I haven’t tested this.

- Will

By: Sean Wong

Sean Wong — Tue, 26 Oct 2010 21:32:47 +0000

Please note, this is a one time shot, not persistent. Should the server reboot/lose power you’ll have to do this again.

The recommended way is to modify /etc/IPAliases.conf

for any clarification, please man IPAliases.conf

By: Augusts Popular Posts: iPhone Ringtones, Internet Explorer, iPhone Tethering, Hackintosh Dells, IP Aliasing - OS X Daily

Thu, 03 Sep 2009 02:00:32 +0000

[...] How to create an IP Alias in Mac OS X using ifconfig – create an IP Alias to make your LAN administration and general networking life easier [...]

By: Fox Mulder

Fox Mulder — Tue, 01 Sep 2009 05:28:37 +0000

@Terrence Brown

IP aliasing is the ability to add more than one IP address to a network interface or resource allowing a node on a network to have multiple connections to a network. For example, if a client or network resource uses DHCP and therefore has a dynamic (changing) IP address, another machine can connect to that client consistently by using an IP alias that will act as a static IP. This makes it so you adjust settings to connect to something like 10.0.0.10 reliably, rather than manually reentering the newly assigned and randomized dynamic address (10.0.0.7 etc). To an average computer user, you could call that a ‘trickier network situation,’ as you say.

There’s nothing to pay for with IP Aliasing, it’s a free technology that’s been around in the networking and UNIX world for decades. It’s also widely used by Systems Administrators and IT professionals, which is why Apple has included it in their operating system.

By: Terrence Brown

Terrence Brown — Tue, 01 Sep 2009 04:38:46 +0000

What do “trickier network situation” and “certain network resources” mean? Do they mean, “trickier network situation where you should be denied access but that won’t stop us from helping you access certain network resources normally forbidden to you because you either haven’t paid or haven’t the clearance?”

By: Twitted by berneau25

Twitted by berneau25 — Fri, 07 Aug 2009 05:57:33 +0000

[...] This post was Twitted by berneau25 [...]

By: Khürt Williams

Khürt Williams — Thu, 06 Aug 2009 23:00:38 +0000

This is so cool. Thanks for the tip.

By: CrackTheMac

CrackTheMac — Thu, 06 Aug 2009 03:33:54 +0000

Great tip especially with my screwy LAN but this is what worked for me:

sudo ifconfig en0 alias 192.168.1.101 netmask 255.255.255.255

might be a version thing so if the above doesn’t work try that (depending on your IP and netmask)