IPv6: removal of the autogenerated link-local address of an interface still possible

[Peter Bieringer <pb@xxxxxxxxxxxx>]

Hi,

used kernel: 2.6.9-1.681_FC3

is this behavior still by design? I'm not happy about this because if the 
link-local address is removed, it can't be added easily anymore.

"howto":

# ip -6 addr show dev eth1
3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qlen 1000
   inet6 fe80::200:cbff:fe23:32bb/64 scope link
      valid_lft forever preferred_lft forever
# ip -6 addr del fe80::200:cbff:fe23:32bb/64 dev eth1
# ip -6 addr show dev eth1
Device "eth1" does not exist.
# ip addr show dev eth1
3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
   link/ether 00:00:cb:23:32:bb brd ff:ff:ff:ff:ff:ff


Would it be not better to prevent user space tools from removal of the (one 
and only) autogenerated link-local address?

        Peter
--
Dr. Peter Bieringer                        http://www.bieringer.de/pb/
GPG/PGP Key 0x958F422D                  mailto: pb at bieringer dot de
Deep Space 6 Co-Founder and Core Member     http://www.deepspace6.net/