Please, observe this behaviour with attention:
root@pulgon:> ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:C0:26:A3:68:F5 inet addr:163.117.139.43 Bcast:163.117.139.255 Mask:255.255.255.0 inet6 addr: fe80::c0:26a3:68f5/10 Scope:Link <------------ inet6 addr: fe80::2c0:26ff:fea3:68f5/10 Scope:Link
Peter