[asterisk-users] Iptables configuration to handle brute force registrations?

[Gilles]

Hello

	I'm no expert of iptables, and it seems like it can handle banning
IP's that are trying to register and fail too many times.

I'd like to use this feature instead of having to install a second
tool such as SSHGuard or BFS that parses the logs and reconfigure
iptables on the fly.

Is there a good iptables configuration that I could use as reference? 

FWIW, the kernel is uClinux 2.6.13.9, iptables is 1.3.6, ans it's a
single-homed host so there's no need to handle the FORWARD chain.

Thank you.