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Date:      Wed, 25 Oct 2000 17:47:30 +0100
From:      John Murphy <john253@crosswinds.net>
To:        john@off2on.com
Cc:        questions@freebsd.org
Subject:   Re: HELP PLEASE
Message-ID:  <8k0evskedrnst9ef87ergrf049a3lsko6u@4ax.com>

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John Hotine wrote:
>I am trying to compile a custom kernel to setup ipfilter 3.4.11 and nat
>to firewall the office where I work, my box is a pentium3 with two
>linksys nics DC0 DC1.... I can compile a custom kernel and it runs fine
>but when I add in one or all the lines for ipfilter and nat(options
>IPFILTER, options IPFIREWALL, options IPDIVERT)and run make,  I get ipv6
>errors(at least I think thats what they are ipv6 is listed numerous time
>s in the errors)...
>
>Another problem is when I comment out any or all(I have no SCSI devices)
>of the SCSI lines from the kernel I get some probe error when running
>make?
>
>when I try to specify my processor type by commenting out the other 3
>except for  I586_CPU I get a proccessor undefined and it locks up
>
>I have been trying hard to get this working I have mainly been reading
>from the FreeBSD Diary and online Manual...
>I would be happy to just get ipfilter and nat up and running...
>Sorry is this message is too long, I would GREATLY appreciate any help
>you can give me

As you say you don't have SCSI devices and you get errors referenced
to IPv6, I have marked lines with '*' that you can comment out.
Also note that you should use a name other than GENERIC for your
custom kernel.  See section 7.3 of the FreeBSD handbook for more info.

I'm not sure what class of processor is a PentiumIII but it certainly
isn't a 386 or 486, so you can certainly remove support for those two.
One of the first lines in dmesg should tell you which it is.

#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
#    http://www.FreeBSD.org/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ./LINT configuration file. If you =
are
# in doubt as to the purpose or necessity of a line, check first in LINT.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.246.2.8 2000/07/20 02:51:02 =
msmith Exp $

machine		i386
*cpu		I386_CPU
*cpu		I486_CPU
cpu		I586_CPU
cpu		I686_CPU
ident		GENERIC     # call it something else here and compile as the new =
name
maxusers	32

#makeoptions	DEBUG=3D-g		#Build kernel with gdb(1) debug symbols

#options 	MATH_EMULATE		#Support for x87 emulation
options 	INET			#InterNETworking
*options 	INET6			#IPv6 communications protocols
options 	FFS			#Berkeley Fast Filesystem
options 	FFS_ROOT		#FFS usable as root device [keep this!]
options 	SOFTUPDATES		#Enable FFS soft updates support
options 	MFS			#Memory Filesystem
options 	MD_ROOT			#MD is a potential root device
options 	NFS			#Network Filesystem
options 	NFS_ROOT		#NFS usable as root device, NFS required
options 	MSDOSFS			#MSDOS Filesystem
#options 	CD9660			#ISO 9660 Filesystem
#options 	CD9660_ROOT		#CD-ROM usable as root, CD9660 required
options 	PROCFS			#Process filesystem
options 	COMPAT_43		#Compatible with BSD 4.3 [KEEP THIS!]
*options 	SCSI_DELAY=3D15000	#Delay (in ms) before probing SCSI
options 	UCONSOLE		#Allow users to grab the console
options 	USERCONFIG		#boot -c editor
options 	VISUAL_USERCONFIG	#visual boot -c editor
options 	KTRACE			#ktrace(1) support
options 	SYSVSHM			#SYSV-style shared memory
options 	SYSVMSG			#SYSV-style message queues
options 	SYSVSEM			#SYSV-style semaphores
options 	P1003_1B		#Posix P1003_1B real-time extensions
options 	_KPOSIX_PRIORITY_SCHEDULING
options		ICMP_BANDLIM		#Rate limit bad replies
options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev

# To make an SMP kernel, the next two are needed
#options 	SMP			# Symmetric MultiProcessor Kernel
#options 	APIC_IO			# Symmetric (APIC) I/O
# Optionally these may need tweaked, (defaults shown):
#options 	NCPU=3D2			# number of CPUs
#options 	NBUS=3D4			# number of busses
#options 	NAPIC=3D1			# number of IO APICs
#options 	NINTR=3D24		# number of INTs

device		isa
device		eisa
device		pci

# Floppy drives
device		fdc0	at isa? port IO_FD1 irq 6 drq 2
device		fd0	at fdc0 drive 0
device		fd1	at fdc0 drive 1

# ATA and ATAPI devices
device		ata0	at isa? port IO_WD1 irq 14
device		ata1	at isa? port IO_WD2 irq 15
device		ata
device		atadisk			# ATA disk drives
device		atapicd			# ATAPI CDROM drives
device		atapifd			# ATAPI floppy drives
#device		atapist			# ATAPI tape drives
options 	ATA_STATIC_ID		#Static device numbering
#options 	ATA_ENABLE_ATAPI_DMA	#Enable DMA on ATAPI devices

# SCSI Controllers
*device		ahb		# EISA AHA1742 family
*device		ahc		# AHA2940 and onboard AIC7xxx devices
*device		amd		# AMD 53C974 (Teckram DC-390(T))
*device		dpt		# DPT Smartcache - See LINT for options!
*device		isp		# Qlogic family
*device		ncr		# NCR/Symbios Logic
*device		sym		# NCR/Symbios Logic (newer chipsets)
*options		SYM_SETUP_LP_PROBE_MAP=3D0x40
				# Allow ncr to attach legacy NCR devices when=20
				# both sym and ncr are configured

*device		adv0	at isa?
*device		adw
*device		bt0	at isa?
*device		aha0	at isa?
*device		aic0	at isa?

# SCSI peripherals
*device		scbus		# SCSI bus (required)
*device		da		# Direct Access (disks)
*device		sa		# Sequential Access (tape etc)
*device		cd		# CD
*device		pass		# Passthrough device (direct SCSI access)

# RAID controllers
#device		ida		# Compaq Smart RAID
#device		amr		# AMI MegaRAID
#device		mlx		# Mylex DAC960 family
#device		twe		# 3ware Escalade

# atkbdc0 controls both the keyboard and the PS/2 mouse
device		atkbdc0	at isa? port IO_KBD
device		atkbd0	at atkbdc? irq 1 flags 0x1
device		psm0	at atkbdc? irq 12

device		vga0	at isa?

# splash screen/screen saver
pseudo-device	splash

# syscons is the default console driver, resembling an SCO console
device		sc0	at isa? flags 0x100

# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
#device		vt0	at isa?
#options 	XSERVER			# support for X server on a vt console
#options 	FAT_CURSOR		# start with block cursor
# If you have a ThinkPAD, uncomment this along with the rest of the PCVT =
lines
#options 	PCVT_SCANSET=3D2		# IBM keyboards are non-std

# Floating point support - do not disable.
device		npx0	at nexus? port IO_NPX irq 13

# Power management support (see LINT for more options)
device		apm0    at nexus? disable flags 0x20 # Advanced Power Management

# PCCARD (PCMCIA) support
#device		card
#device		pcic0	at isa? irq 10 port 0x3e0 iomem 0xd0000
#device		pcic1	at isa? irq 11 port 0x3e2 iomem 0xd4000 disable

# Serial (COM) ports
device		sio0	at isa? port IO_COM1 flags 0x10 irq 4
device		sio1	at isa? port IO_COM2 irq 3
device		sio2	at isa? disable port IO_COM3 irq 5
device		sio3	at isa? disable port IO_COM4 irq 9

####  NOTE. If you only have two serial ports you can comment out the =
last
####  two lines above, and save some IRQs.

# Parallel port
device		ppc0	at isa? irq 7
device		ppbus		# Parallel port bus (required)
device		lpt		# Printer
device		plip		# TCP/IP over parallel
device		ppi		# Parallel port interface device
#device		vpo		# Requires scbus and da


# PCI Ethernet NICs.
#device		de		# DEC/Intel DC21x4x (``Tulip'')
#device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
#device		tx		# SMC 9432TX (83c170 ``EPIC'')
#device		vx		# 3Com 3c590, 3c595 (``Vortex'')
#device		wx		# Intel Gigabit Ethernet Card (``Wiseman'')

# PCI Ethernet NICs that use the common MII bus controller code.
device		miibus		# MII bus support
device		dc		# DEC/Intel 21143 and various workalikes
#device		rl		# RealTek 8129/8139
#device		sf		# Adaptec AIC-6915 (``Starfire'')
#device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
#device		ste		# Sundance ST201 (D-Link DFE-550TX)
#device		tl		# Texas Instruments ThunderLAN
#device		vr		# VIA Rhine, Rhine II
#device		wb		# Winbond W89C840F
#device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')

# ISA Ethernet NICs.
#device		ed0	at isa? port 0x280 irq 10 iomem 0xd8000
#device		ex
#device		ep
# WaveLAN/IEEE 802.11 wireless NICs. Note: the WaveLAN/IEEE really
# exists only as a PCMCIA device, so there is no ISA attatement needed
# and resources will always be dynamically assigned by the pccard code.
#device		wi
# Aironet 4500/4800 802.11 wireless NICs. Note: the declaration below =
will
# work for PCMCIA and PCI cards, as well as ISA cards set to ISA PnP
# mode (the factory default). If you set the switches on your ISA
# card for a manually chosen I/O address and IRQ, you must specify
# those paremeters here.
#device		an
# Xircom Ethernet
#device		xe
# The probe order of these is presently determined by =
i386/isa/isa_compat.c.
*device		ie0	at isa? port 0x300 irq 10 iomem 0xd0000
*device		fe0	at isa? port 0x300
*device		le0	at isa? port 0x300 irq 5 iomem 0xd0000
*device		lnc0	at isa? port 0x280 irq 10 drq 0
*device		cs0	at isa? port 0x300
*device		sn0	at isa? port 0x300 irq 10

# Pseudo devices - the number indicates how many units to allocated.
pseudo-device	loop		# Network loopback
pseudo-device	ether		# Ethernet support
pseudo-device	sl	1	# Kernel SLIP
pseudo-device	ppp	1	# Kernel PPP
pseudo-device	tun		# Packet tunnel.
pseudo-device	pty		# Pseudo-ttys (telnet etc)
pseudo-device	md		# Memory "disks"
*pseudo-device	gif	4	# IPv6 and IPv4 tunneling
*pseudo-device	faith	1	# IPv6-to-IPv4 relaying (translation)

# The `bpf' pseudo-device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
pseudo-device	bpf		#Berkeley packet filter

# USB support
device		uhci		# UHCI PCI->USB interface
device		ohci		# OHCI PCI->USB interface
device		usb		# USB Bus (required)
device		ugen		# Generic
#device		uhid		# "Human Interface Devices"
#device		ukbd		# Keyboard
#device		ulpt		# Printer
#device		umass		# Disks/Mass storage - Requires scbus and da
#device		ums		# Mouse
# USB Ethernet, requires mii
#device		aue		# ADMtek USB ethernet
#device		cue		# CATC USB ethernet
#device		kue		# Kawasaki LSI USB ethernet
options 	IPFILTER
options 	IPDIVERT
options		IPFIREWALL

-------------------------------------------------------------------------

Note that IPFILTER and IPFIREWALL are two different firewalls.  Please
choose one or the other.  Personally I've only used IPFIREWALL.

Also note that unless you have firewall rules already in place, you will
'lock yourself out'.  'It is suggested that you set firewall_type=3Dopen
in /etc/rc.conf when first enabling this feature'

HTH
John.


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