ifconfig alias

["John R. Shannon" <john@johnrshannon.com>]

What am I doing wrong?

# ifconfig dc0
dc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        address: 00:03:ba:05:fb:06
        media: Ethernet autoselect (100baseTX full-duplex)
        status: active
        inet6 fe80::203:baff:fe05:fb06%dc0 prefixlen 64 scopeid 0x1
        inet6 fec0:0:101::3 prefixlen 64
        inet 192.168.1.3 netmask 0xfffffff0 broadcast 192.168.1.15
# ifconfig dc0 inet alias 192.168.1.9 netmask 255.255.255.255
ifconfig: SIOCAIFADDR: File exists

OpenBSD 3.6  sparc64

-- 
John R. Shannon
john@johnrshannon.com