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Date:      Sat, 25 May 2002 09:10:02 -0700 (PDT)
From:      Ruslan Ermilov <ru@FreeBSD.org>
To:        freebsd-bugs@FreeBSD.org
Subject:   Re: bin/38533: 'ifconfig ifname down delete' does not deletes aliases
Message-ID:  <200205251610.g4PGA2J06752@freefall.freebsd.org>

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The following reply was made to PR bin/38533; it has been noted by GNATS.

From: Ruslan Ermilov <ru@FreeBSD.org>
To: Eugene Grosbein <eugen@grosbein.pp.ru>
Cc: bug-followup@FreeBSD.org
Subject: Re: bin/38533: 'ifconfig ifname down delete' does not deletes aliases
Date: Sat, 25 May 2002 19:04:05 +0300

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 On Sat, May 25, 2002 at 11:50:18PM +0800, Eugene Grosbein wrote:
 > Ruslan Ermilov wrote:
 >=20
 > > > > > I have an interface with primary and aliased addresses
 > > > > > and try to clear them all and take interface down.
 > > > > > So I type
 > > > > >
 > > > > >       ifconfig fxp0 down delete
 > > > > >
 > > > > > And I see that primary address (with correct netmask) is removed
 >                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 > > > > > but alias (with netmask 255.255.255.255) is still here.
 > > > > >
 > > > > It would be very sad if it did.
 > > > >
 > > > > `delete' is just another alias for `-alias'.  It deletes the address
 > > > > specified, or the first address (in this family) if no address was
 > > > > specified, of the interface.
 > > > >
 > > > > This PR can be closed.
 > > >
 > > > Then it should preserve original netmask, I guess.
 > > >
 > > Umm, preserve the original netmask of _what_?
 >=20
 > Of primary IP being removed.
 >=20
 I don't quite follow, sorry.  Suppose you have two IP addresses
 from different networks bound to an interface.  If you delete
 one address, it just gets deleted.  Nothing else should be
 done.
 
 > > > Well, if 'ifconfig down delete' doesn't deletes all interfaces' IP,
 > > > if there an easy way to perform this task?
 > > > If not, I think this command is good candidate.
 > > >
 > > ifconfig rl0 inet | tail +2 | xargs -n1 ifconfig rl0 delete
 >=20
 > Thanks. I'd like to have some more intuitive for non-script work :-)
 >=20
 There is no ioctl(2) to delete all addresses.
 
 
 Cheers,
 --=20
 Ruslan Ermilov		Sysadmin and DBA,
 ru@sunbay.com		Sunbay Software AG,
 ru@FreeBSD.org		FreeBSD committer,
 +380.652.512.251	Simferopol, Ukraine
 
 http://www.FreeBSD.org	The Power To Serve
 http://www.oracle.com	Enabling The Information Age
 
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