I'm dealing with old software that uses old NAT traversal techniques. I
specifically need to select the NAT variation as defined by RFC 3489
(section 5).
Generally I've used nat-to's 'static-port' option and gotten around this
issue. After adding some clients host-side, it seems like NAT traversal
isn't working.
Suppose I have this NAT rule:
pass out on $external_int from <conenat> nat-to $external_int static-port
What NAT variation does OpenBSD implement by default?
Wikipedia page on NAT variation (port translation):
http://en.wikipedia.org/wiki/Network_address_translation#Methods_of_port_translation
