(usagi-users 02502) Limit on number of IP addresses

["Craig, Dave" <dwcraig@xxxxxxxxxxxx>]

Just out of curiosity, why isn't there a limit on the number of IPv6
addresses that may be configured?  This could be similar to the limit
placed on IPv6 routes through /proc/sys/net/ipv6/route/max_size.  That
way it would not be possible for a system administrator to configure
enough IPv6 addresses that there isn't enough kernel memory available
for other tasks, making the system unavailable.  This is a contrived
case because it would take a _lot_ of IPv6 addresses.  It is
theoretically possible for the system to be made unavailable through
what seems like a safe configuration interface.  In the worst case,
these IPv6 addresses could be statically configured, so on reboot, the
system would reconfigure the addresses before an administrator can log
in and remove the IPv6 addresses configured.  Even on reboot the system
would remain unavailable.

Thank you for your consideration,
	Dave Craig

Qualcomm, Inc.