Date: Mon, 26 Sep 2005 00:54:33 +0200 From: Bernd Walter <ticso@cicely12.cicely.de> To: Gavin Atkinson <gavin.atkinson@ury.york.ac.uk> Cc: Yar Tikhiy <yar@comp.chem.msu.su>, freebsd-current@freebsd.org, freebsd-net@freebsd.org Subject: Re: "ifconfig -vlandev" syntax Message-ID: <20050925225432.GH552@cicely12.cicely.de> In-Reply-To: <1127686105.23447.35.camel@buffy.york.ac.uk> References: <20050922104104.GA13539@comp.chem.msu.su> <20050925213741.GG15981@odin.ac.hmc.edu> <1127686105.23447.35.camel@buffy.york.ac.uk>
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On Sun, Sep 25, 2005 at 11:08:25PM +0100, Gavin Atkinson wrote: > On Sun, 2005-09-25 at 14:37 -0700, Brooks Davis wrote: > > On Thu, Sep 22, 2005 at 02:41:05PM +0400, Yar Tikhiy wrote: > > > Hi folks, > > > > > > As our ifconfig(8) is growing more options for special interface > > > types, inconsistencies sneak into their syntax. In particular, > > > -vlandev takes a useless argument (vlan(4) cannot attach to more > > > than one parent anyway) while, e.g., -carpdev doesn't need one. > > > Personally, I like the latter since having to type unneeded words > > > on the command line annoys me. Do you think that making -vlandev > > > need no arguments in CURRENT would break many existing things? > > > > I agree the argument is useless. Unfortunatly, it's going to be hard to > > deprecate the old syntax so we may need to keep it around. > > There's also the issue that the "vlan" and "vlandev" options have to be > specified in that order, which is counter-intuitive and undocumented. > > leeloo# ifconfig vlan14 vlandev fxp0 vlan 14 > ifconfig: must specify both vlan tag and device > leeloo# ifconfig vlan14 vlan 14 vlandev fxp0 > leeloo# > > Also, you can't set both the vlan and IP address information: > leeloo# ifconfig vlan14 vlan 14 vlandev fxp0 inet W.X.Y.Z netmask 255.255.255.0 > ifconfig: inet: bad value > > As a result of this, the only way to create vlans from rc.conf seems to > be in two stages, by renaming the interface: > > cloned_interfaces="vlan14" > ifconfig_vlan14="vlan 14 vlandev fxp0 name somename" > ifconfig_somename="inet W.X.Y.Z netmask 255.255.255.0" The follwing always worked for me, no need to rename: cloned_interfaces="vlan1" ifconfig_vlan1="inet 1.2.3.4/29 vlan 1 vlandev fxp0" What doesn't work is this: ifconfig_vlan1_alias0="1.2.3.4/32" I had to configure them by a selfdone script. -- B.Walter BWCT http://www.bwct.de bernd@bwct.de info@bwct.de
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