NATD and available ports

[Andriy Korud]

Hi.
I need to run nat box for ~2000 clients with up to 300.000 active connections.
ipnat doesn't handle such load, so I'm going to try natd - but worry that natd
will simply use all available outgoing ports and then crash.
I have 128 public IP's and in ipnat's configuration just map smaller blocks of
private IP's into certain public IP, but have no idea how can I do this using
natd.

Any suggestions?

Regards,
Andriy Korud.