Date: Thu, 21 Feb 2008 12:35:23 +0000 From: "Siraj Shaikh" <siraj.shaikh@gmail.com> To: Mel <fbsd.questions@rachie.is-a-geek.net> Cc: freebsd-questions@freebsd.org Subject: Re: IP Aliasing Message-ID: <3b2ddd940802210435n5d460dc1l82615e927255e2a6@mail.gmail.com> In-Reply-To: <200802211333.36144.fbsd.questions@rachie.is-a-geek.net> References: <3b2ddd940801280627m6d747cd1g27682bcd9e50ceb7@mail.gmail.com> <200801290234.m0T2YtLn074403@banyan.cs.ait.ac.th> <3b2ddd940802210407j7b83059duabadeccaec53a26c@mail.gmail.com> <200802211333.36144.fbsd.questions@rachie.is-a-geek.net>
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On 21/02/2008, Mel <fbsd.questions@rachie.is-a-geek.net> wrote:
> On Thursday 21 February 2008 13:07:08 Siraj Shaikh wrote:
>
> > ifconfig_ed0_alias0="inet 127.0.0.251 netmask 0xffffffff"
> > ifconfig_ed0_alias1="inet 127.0.0.252 netmask 0xffffffff"
> > ifconfig_ed0_alias2="inet 127.0.0.253 netmask 0xffffffff"
> >
> > Just want to know, as I want to configure about 253 addresses as an
> > alias on a single machine (along with the primary address, this will
> > be 254 address, a whole C-class subnet) - and would like these entries
> > to hold when I boot. Also, is there any shortcut to adding a range of
> > net/host address or would I have to add a line for each address?
>
>
> Yes and yes. Yes it needs one line per alias and yes, there's a shortcut:
>
> for i in $(jot - 0 254); do
> echo ifconfig_ed0_alias${i}="\"inet 127.0.0.$((i+1)) netmask 0xffffffff\""
> done >>/etc/rc.conf
>
> Wouldn't do this with 127.0.0 btw, but I figured you wouldn't. You'd also have
> to make a provision for the main IP, but then again, it's easier to remove
> the specific line by hand.
> --
>
> Mel
>
Thanks Mel - very helpful indeed
Siraj
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