Removing aliases removes primary IP
spil.oss at googlemail.com
Fri Mar 21 03:15:11 PDT 2008
Somehow the man-page for ifconfig is confusing....
In the examples:
Add the IPv6 address 2001:DB8:DBDB::123/48 to the interface em0:
# ifconfig em0 inet6 2001:db8:bdbd::123 prefixlen 48 alias
Note that lower case hexadecimal IPv6 addresses are acceptable.
Remove the IPv6 address added in the above example, using the / character
as shorthand for the network prefix, and using delete as a synonym for
the canonical form of the option -alias:
# ifconfig em0 inet6 2001:db8:bdbd::123/48 delete
Lesson for me is that you should have only one 'command' per
invocation where I had 2. alias is not an atribute/option of the
setting I was trying to do....
On 20/03/2008, Pietro Cerutti <gahr at freebsd.org> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
> Pietro Cerutti wrote:
> | 2) you remove an alias which the 'delete' argument. Since you don't
> | specify which alias to be removed, the lowest IP number is removed. In
> | your case, the lowest IP number happens to be your primary :-)
> Maybe someone with a doc@ commit bit could commit the following patch,
> since this behavior is not documented in ifconfig(8).
> - --- ifconfig.8.orig 2008-03-20 15:34:17.000000000 +0100
> +++ ifconfig.8 2008-03-20 15:34:43.000000000 +0100
> @@ -205,7 +205,8 @@
> ~ .Li 0xffffffff
> ~ is most appropriate.
> ~ .It Fl alias
> - -Remove the network address specified.
> +Remove the network address specified, or the one with the lowest
> +value if none is specified.
> ~ This would be used if you incorrectly specified an alias, or it
> ~ was no longer needed.
> ~ If you have incorrectly set an NS address having the side effect
> - --
> Pietro Cerutti
> gahr at FreeBSD.org
> PGP Public Key:
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.8 (FreeBSD)
> -----END PGP SIGNATURE-----
More information about the freebsd-questions