NAT � �� ? (alex123)

Fri, 03 Oct 2008 13:04:20 GMT

�� ۣ� �� :

NAT, REDIRECT AND LSNAT
First redirect all the traffic to nat instance 123:

ipfw add nat 123 all from any to any

Then to configure nat instance 123 to alias all the outgoing traffic with
ip 192.168.0.123, blocking all incoming connections, trying to keep same
ports on both sides, clearing aliasing table on address change and keep-
ing a log of traffic/link statistics:

ipfw nat 123 config ip 192.168.0.123 log deny_in reset same_ports

Or to change address of instance 123, aliasing table will be cleared (see
reset option):

ipfw nat 123 config ip 10.0.0.1

To see configuration of nat instance 123:

ipfw nat 123 show config

To show logs of all the instances in range 111-999:

ipfw nat 111-999 show

To see configurations of all instances:

ipfw nat show config

Or a redirect rule with mixed modes could looks like:

ipfw nat 123 config redirect_addr 10.0.0.1 10

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NAT � �� ? (alex123)