Can someone tell me why this command:

   gifconfig gif0 inet 198.145.117.53 206.123.31.102

produces this output:

   gifconfig: ioctl (SIOCSIFPHYADDR): no such interface

when I try to hook up to the 6bone?  netstat -i produces the following
lines (among others) so I think the interface really exists.

Name  Mtu   Network       Address              Ipkts Ierrs    Opkts Oerrs Colls
ppp1  1500  <Link>                            163340    74   168396     0     0
ppp1  1500  198.145.117   p03pm1.paclink.co   163340    74   168396     0     0
gif0* 1280  <Link>                                 0     0        0     0     0
gif0* 1280  3ffe:b00:c18: 3ffe:b00:c18:1fff        0     0        0     0     0

and ifconfig produces:

ppp1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
        inet 198.145.117.53 --> 198.145.117.22 netmask 0xffffff00 
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
        inet6 3ffe:b00:c18:1fff::41 -> 3ffe:b00:c18:1fff::40 prefixlen 127

Did I compile something wrong?  Am I doing something wrong?  Any hints?

Jon