IP Aliasing
Siraj Shaikh
siraj.shaikh at gmail.com
Thu Feb 21 12:35:24 UTC 2008
On 21/02/2008, Mel <fbsd.questions at 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
More information about the freebsd-questions
mailing list