ifconfig can't remove aliases

[Philippe Pegon]

oHmEr wrote:
> hello,
> 
> i have a problem with ifconfig: it refuses to delete an ipv6 alias for an
> incomprehensible reason. here's what i'm doing :
> 
> $ uname -a
> FreeBSD homer.cload.net 6.0-RELEASE FreeBSD 6.0-RELEASE #4: Sun Nov 27
> 19:01:40 CET 2005     root at homer.cload.net:/usr/obj/usr/src/sys/HOMER 
> i386
> $ ifconfig dc0
> dc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         options=8<VLAN_MTU>
>         inet6 fe80::248:54ff:fe12:76fb%dc0 prefixlen 64 scopeid 0x1
>         inet6 2001:7a8:b138::1 prefixlen 64
>         inet 192.168.2.253 netmask 0xffffff00 broadcast 192.168.2.255
>         inet6 2001:7a8:b138:caca:caca:caca:caca:1 prefixlen 64
>         inet6 2001:7a8:b138::caca:1 prefixlen 48
>         ether 00:48:54:12:76:fb
>         media: Ethernet autoselect (100baseTX <full-duplex>)
>         status: active
> $ sudo ifconfig dc0 inet6 -alias 2001:7a8:b138::1
> ifconfig: ioctl (SIOCDIFADDR): Can't assign requested address
> 
> other ipv6 addresses can't be removed too. is it a bug ? what can cause
> this error ?

try :

$ sudo ifconfig dc0 inet6 2001:7a8:b138::1 delete

or

$ sudo ifconfig dc0 inet6 2001:7a8:b138::1 -alias

in ifconfig(8) :

SYNOPSIS
      ifconfig [-L] [-k] [-m] interface [create] [address_family] 
[address [dest_address]] [parameters]

parameters is in the end (like delete or -alias)

--
Philippe Pegon