|  | 
 | Thi file is for use with FreeBSD 4.x and 5.x only. | 
 |  | 
 | To build a kernel for use with the loadable kernel module, follow these | 
 | steps: | 
 | 	1. For FreeBSD version: | 
 | 		4.*	 do	make freebsd4 | 
 | 		5.*	 do	make freebsd5 | 
 |  | 
 | 	2. do "make install-bsd" | 
 | 	   (probably has to be done as root) | 
 |  | 
 | 	3. Run "BSD/kupgrade" | 
 |  | 
 | 	4. build a new kernel | 
 |  | 
 | 	5. install and reboot with the new kernel | 
 |  | 
 | 	6. use modload(8) to load the packet filter with: | 
 | 		modload if_ipl.o | 
 |  | 
 | 	7. do "modstat" to confirm that it has been loaded successfully. | 
 |  | 
 | There is no need to use mknod to create the device in /dev; | 
 | - upon loading the module, it will create itself with the correct values, | 
 |   under the name (IPL_NAME) from the Makefile.  It will also remove itself | 
 |   from /dev when it is modunload'd. | 
 |  | 
 | To build a kernel with the IP filter, follow these steps: | 
 |  | 
 | 	1. For FreeBSD version: | 
 | 		4.*	 do	make freebsd4 | 
 | 		5.*	 do	make freebsd5 | 
 |  | 
 | 	2. do "make install-bsd" | 
 | 	   (probably has to be done as root) | 
 |  | 
 | 	3.  run "FreeBSD/kinstall" as root | 
 |  | 
 | 	4. build a new kernel | 
 |  | 
 | 	5. | 
 |           b) If you are using FreeBSD-3 or later: | 
 | 	   create devices for IP Filter as follows (assuming it was | 
 |            installed into the device table as char dev 20): | 
 | 	      mknod /dev/ipl c 79 0 | 
 | 	      mknod /dev/ipnat c 79 1 | 
 | 	      mknod /dev/ipstate c 79 2 | 
 | 	      mknod /dev/ipauth c 79 3 | 
 | 	      mknod /dev/ipsync c 79 4 | 
 | 	      mknod /dev/ipscan c 79 5 | 
 |  | 
 | 	6. install and reboot with the new kernel | 
 |  | 
 | Darren Reed | 
 | darrenr@pobox.com |