Re: "ifconfig -vlandev" syntax

From: Bernd Walter (ticso_at_cicely12.cicely.de)
Date: 09/26/05

  • Next message: Lourik Malan: "(no subject)" 
    Date: Mon, 26 Sep 2005 00:54:33 +0200
To: Gavin Atkinson <gavin.atkinson@ury.york.ac.uk>

    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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