[mdlug] SOLVED: iptables problem

[David Relson]

G'day,

My upgrade a couple months back upgraded the kernel (2.6.8 to 2.6.12),
glibc (2.3.5 to 2.3.6), and iptables (1.2.9 to1.3.3).  As I hadn't
rebooted, the 2.6.8 kernel was still running.

Evidently glibc 2.3.6 and iptables 1.3.3 were built with kernel
2.6.12 headers.  Also the size of the structure used for setsockopt
data had changed.  The result of passing the 2.6.12 structure size to
the 2.6.8 kernel was "EINVAL - optlen invalid in setsockopt()."

The solution was to downgrade the iptables package.  

Thanks to all who suggested things to check.

All is now fine.

Regards,

David