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7.44 How do you disable IP Forwarding at 9.x?

To accomplish what you want, use the following commands as root:

        adb -w /hp-ux /dev/kmem
        ipforwarding/W 0
        ipforwarding?W 0
        CTRL-D

If you install a new kernel, you have to repeat these steps.

NOTE:  These commands disable IP forwarding completely:  if the
       system is configured as a gateway, no IP forwarding will
       occur.  This workaround is NOT supported.

(Thanks to Colin Wynd (colin@col.hp.com)