Return to BSD News archive
Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.wildstar.net!serv.hinet.net!news.uoregon.edu!news.rediris.es!minerva.ibernet.es!uunet!in2.uu.net!206.28.134.7!news.cybercom.net!news.cybercom.net!rhuff
From: rhuff@shell1.cybercom.net (Robert Huff)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: natd + telnet = system crash
Date: 19 Apr 1997 02:15:26 GMT
Organization: Cyber Access Internet Services (617) 876-5660
Lines: 303
Distribution: world
Message-ID: <RHUFF.97Apr18221526@shell1.cybercom.net>
NNTP-Posting-Host: shell1.cybercom.net
Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:39308
I'm trying to run NATD; everything works fine for the
masqueraded machine. Locally I can run everything (ftp, ping,
http) _except_ telnet. If I start telnet across the masqueraded
interface I get a kernel panic within 15-20 seconds.
I am appending (1) DDB crash info; (2) NATD init file; (3)
kernel config file; and (4) boot probe results. I have
firewall=YES in sysconfig, and rc.firewall set to "open".
Robert Huff
fatal trap 12:
page fault in kernel mode
fault virtual address
0xf1fa200
fault code
supervisor read, page not present
instruction poiinter
0x8:0xf0145cce
stack pointer
0x10:0xefbffdec
frame pointer
0x10:0xefbffdf0
code segment
base 0x0 limit 0xffff type 0x1b
DPL 0 pres 1 def 32
gran 1
eflags
interrupt enabled, resume, IOPL = 0
current process
natd
interrupt mask
tty
kernel
type 12 trap code = 0
stopped at
_pppfcs+0x16 xorb (%edx,%dl)
#!/bin/sh
if [ $# != 1 ]
then
echo "usage: natd.test ifname"
exit 1
fi
#ipfw -f flush
ipfw add 5000 divert 32000 ip from any to any via $1 in
ipfw add 5100 divert 32001 ip from any to any via $1 out
#ipfw add 65534 pass ip from any to any
ipfw show
/sbin/natd -i 32000 -o 32001 -n $1
#
# GENERIC -- Generic machine with WD/AHx/NCR/BTx family disks
#
# For more information read the handbook part System Administration ->
# Configuring the FreeBSD Kernel -> The Configuration File.
# The handbook is available in /usr/share/doc/handbook or online as
# latest version from the FreeBSD World Wide Web server
# <URL:http://www.FreeBSD.ORG/>
#
# An exhaustive list of options and more detailed explanations of the
# device lines is present in the ./LINT configuration file. If you are
# in doubt as to the purpose or necessity of a line, check first in LINT.
#
# $Id: GENERIC,v 1.77.2.4 1997/02/22 20:31:24 joerg Exp $
machine "i386"
#cpu "I386_CPU"
cpu "I486_CPU"
#cpu "I586_CPU"
#cpu "I686_CPU"
ident COMPOSTELLA
maxusers 25
options MATH_EMULATE #Support for x87 emulation
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
options NFS #Network Filesystem
options MSDOSFS #MSDOS Filesystem
options "CD9660" #ISO 9660 Filesystem
options PROCFS #Process filesystem
options "COMPAT_43" #Compatible with BSD 4.3 [KEEP THIS!]
options SCSI_DELAY=4 #Be pessimistic about Joe SCSI device
options BOUNCE_BUFFERS #include support for DMA bounce buffers
options UCONSOLE #Allow users to grab the console
options FAILSAFE #Be conservative
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
options IPFIREWALL #firewall
options IPFIREWALL_VERBOSE #print information about
# dropped packets
options "IPFIREWALL_VERBOSE_LIMIT=100" #limit verbosity
options IPDIVERT #divert sockets
#options TCPDEBUG
options DDB # kernel debugger
#
# These three options provide support for System V Interface
# Definition-style interprocess communication, in the form of shared
# memory, semaphores, and message queues, respectively.
#
options SYSVSHM
options SYSVSEM
options SYSVMSG
#
# This option includes a MD5 routine in the kernel, this is used for
# various authentication and privacy uses.
#
options "MD5"
config kernel root on sd1
controller isa0
#controller eisa0
controller pci0
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
disk fd0 at fdc0 drive 0
#disk fd1 at fdc0 drive 1
#tape ft0 at fdc0 drive 2
#controller wdc0 at isa? port "IO_WD1" bio irq 14 vector wdintr
#disk wd0 at wdc0 drive 0
#disk wd1 at wdc0 drive 1
#controller wdc1 at isa? port "IO_WD2" bio irq 15 vector wdintr
#disk wd2 at wdc1 drive 0
#disk wd3 at wdc1 drive 1
#options ATAPI #Enable ATAPI support for IDE bus
#options ATAPI_STATIC #Don't do it as an LKM
#device wcd0 #IDE CD-ROM
# A single entry for any of these controllers (ncr, ahb, ahc, amd) is
# sufficient for any number of installed devices.
#controller ncr0
#controller amd0
#controller ahb0
controller ahc0
#controller bt0 at isa? port "IO_BT0" bio irq ? vector bt_isa_intr
#controller uha0 at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr
#controller aha0 at isa? port "IO_AHA0" bio irq ? drq 5 vector ahaintr
#controller aic0 at isa? port 0x340 bio irq 11 vector aicintr
#controller nca0 at isa? port 0x1f88 bio irq 10 vector ncaintr
#controller nca1 at isa? port 0x350 bio irq 5 vector ncaintr
#controller sea0 at isa? bio irq 5 iomem 0xc8000 iosiz 0x2000 vector seaintr
controller scbus0
device sd0
#device od0 #See LINT for possible `od' options.
device st0
device cd0 #Only need one of these, the code dynamically grows
#device wt0 at isa? port 0x300 bio irq 5 drq 1 vector wtintr
#device mcd0 at isa? port 0x300 bio irq 10 vector mcdintr
#controller matcd0 at isa? port 0x230 bio
#device scd0 at isa? port 0x230 bio
# syscons is the default console driver, resembling an SCO console
#device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
device vt0 at isa? port "IO_KBD" tty irq 1 vector pcrint
options PCVT_FREEBSD=210 # pcvt running on FreeBSD >= 2.0.5
options XSERVER # include code for XFree86
#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=2 # IBM keyboards are non-std
# Mandatory, don't remove
device npx0 at isa? port "IO_NPX" irq 13 vector npxintr
#
# Laptop support (see LINT for more options)
#
#device apm0 at isa? disable # Advanced Power Management
#options APM_BROKEN_STATCLOCK # Workaround some buggy APM BIOS
# PCCARD (PCMCIA) support
#controller crd0
#device pcic0 at crd?
#device pcic1 at crd?
device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr
device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr
#device sio2 at isa? disable port "IO_COM3" tty irq 5 vector siointr
#device sio3 at isa? disable port "IO_COM4" tty irq 9 vector siointr
device lpt0 at isa? port? tty irq 7 vector lptintr
#device lpt1 at isa? port? tty
#device mse0 at isa? port 0x23c tty irq 5 vector mseintr
#device psm0 at isa? disable port "IO_KBD" conflicts tty irq 12 vector psmintr
# Order is important here due to intrusive probes, do *not* alphabetize
# this list of network interfaces until the probes have been fixed.
# Right now it appears that the ie0 must be probed before ep0. See
# revision 1.20 of this file.
device de0
#device fxp0
#device vx0
device ed0 at isa? port 0x340 net irq 9 vector edintr
#device ed0 at isa? port 0x340 net irq 2 iomem 0xd8000 vector edintr
#device ed1 at isa? port 0x300 net irq 5 iomem 0xd8000 vector edintr
#device ie0 at isa? port 0x360 net irq 7 iomem 0xd0000 vector ieintr
#device ep0 at isa? port 0x300 net irq 10 vector epintr
#device ex0 at isa? port 0x300 net irq 10 iomem 0xd0000 vector exintr
#device fe0 at isa? port 0x300 net irq ? vector feintr
#device ix0 at isa? port 0x300 net irq 10 iomem 0xd0000 iosiz 32768 vector ixintr
#device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr
#device lnc0 at isa? port 0x280 net irq 10 drq 0 vector lncintr
#device ze0 at isa? port 0x300 net irq 5 iomem 0xd8000 vector zeintr
#device zp0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zpintr
#
# for the SoundBlaster 16
#
controller snd0
device sb0 at isa? port 0x220 irq 7 conflicts drq 1 vector sbintr
device sbxvi0 at isa? drq 5
device sbmidi0 at isa? port 0x330
pseudo-device loop
pseudo-device ether
pseudo-device log
#pseudo-device sl 1
# ijppp uses tun instead of ppp device
pseudo-device ppp 1
#pseudo-device tun 1
pseudo-device pty 24
#pseudo-device gzip # Exec gzipped a.out's
# KTRACE enables the system-call tracing facility ktrace(2).
# This adds 4 KB bloat to your kernel, and slightly increases
# the costs of each syscall.
#options KTRACE #kernel tracing
Apr 7 08:15:13 compostella /kernel: Copyright (c) 1992-1996 FreeBSD Inc.
Apr 7 08:15:13 compostella /kernel: Copyright (c) 1982, 1986, 1989, 1991, 1993
Apr 7 08:15:13 compostella /kernel: The Regents of the University of California. All rights reserved.
Apr 7 08:15:13 compostella /kernel:
Apr 7 08:15:13 compostella /kernel: FreeBSD 2.2.1-RELEASE #0: Sat Apr 5 23:55:03 EST 1997
Apr 7 08:15:13 compostella /kernel: root@compostella.cybercom.net:/usr/src/sys/compile/COMPOSTELLA
Apr 7 08:15:13 compostella /kernel: CPU: i486DX (486-class CPU)
Apr 7 08:15:13 compostella /kernel: real memory = 67108864 (65536K bytes)
Apr 7 08:15:13 compostella /kernel: avail memory = 62341120 (60880K bytes)
Apr 7 08:15:13 compostella /kernel: Probing for devices on PCI bus 0:
Apr 7 08:15:13 compostella /kernel: chip0 <Intel 82439> rev 3 on pci0:0
Apr 7 08:15:13 compostella /kernel: chip1 <Intel 82371SB PCI-ISA bridge> rev 1 on pci0:7:0
Apr 7 08:15:13 compostella /kernel: chip2 <Intel 82371SB IDE interface> rev 0 on pci0:7:1
Apr 7 08:15:13 compostella /kernel: vga0 <VGA-compatible display device> rev 1 int a irq 12 on pci0:17
Apr 7 08:15:14 compostella /kernel: de0 <Digital 21140 Fast Ethernet> rev 17 int a irq 10 on pci0:18
Apr 7 08:15:14 compostella /kernel: de0: ZNYX ZX34X 21140 [10-100Mb/s] pass 1.1
Apr 7 08:15:14 compostella /kernel: de0: address 00:c0:95:f8:17:ad
Apr 7 08:15:14 compostella /kernel: de0: enabling 100baseTX port
Apr 7 08:15:14 compostella /kernel: ahc0 <Adaptec 2940 Ultra SCSI host adapter> rev 0 int a irq 11 on pci0:19
Apr 7 08:15:14 compostella /kernel: ahc0: aic7880 Single Channel, SCSI Id=7, 16 SCBs
Apr 7 08:15:14 compostella /kernel: ahc0 waiting for scsi devices to settle
Apr 7 08:15:14 compostella /kernel: (ahc0:0:0): "IBM OEM 0663H12 s x" type 0 fixed SCSI 2
Apr 7 08:15:14 compostella /kernel: sd0(ahc0:0:0): Direct-Access 958MB (1962030 512 byte sectors)
Apr 7 08:15:14 compostella /kernel: (ahc0:1:0): "SEAGATE ST3610N 9290" type 0 fixed SCSI 2
Apr 7 08:15:14 compostella /kernel: sd1(ahc0:1:0): Direct-Access 510MB (1046206 512 byte sectors)
Apr 7 08:15:14 compostella /kernel: Probing for devices on the ISA bus:
Apr 7 08:15:14 compostella /kernel: vt0 at 0x60-0x6f irq 1 on motherboard
Apr 7 08:15:14 compostella /kernel: vt0: generic, 80 col, color, 8 scr, mf2-kbd, [R3.20-b24]
Apr 7 08:15:14 compostella /kernel: sio0 at 0x3f8-0x3ff irq 4 on isa
Apr 7 08:15:14 compostella /kernel: sio0: type 16550A
Apr 7 08:15:14 compostella /kernel: sio1 at 0x2f8-0x2ff irq 3 on isa
Apr 7 08:15:14 compostella /kernel: sio1: type 16550A
Apr 7 08:15:15 compostella /kernel: lpt0 at 0x378-0x37f irq 7 on isa
Apr 7 08:15:15 compostella /kernel: lpt0: Interrupt-driven port
Apr 7 08:15:15 compostella /kernel: lp0: TCP/IP capable interface
Apr 7 08:15:15 compostella /kernel: fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
Apr 7 08:15:15 compostella /kernel: fdc0: NEC 72065B
Apr 7 08:15:15 compostella /kernel: fd0: 1.44MB 3.5in
Apr 7 08:15:15 compostella /kernel: npx0 on motherboard
Apr 7 08:15:15 compostella /kernel: npx0: INT 16 interface
Apr 7 08:15:15 compostella /kernel: sb0 not found at 0x220
Apr 7 08:15:15 compostella /kernel: sbxvi0 not found
Apr 7 08:15:15 compostella /kernel: sbmidi0 not found at 0x330
Apr 7 08:15:15 compostella /kernel: IP packet filtering initialized, divert enabled, logging limited to 100 packets/entry
Apr 7 08:15:15 compostella named[80]: starting. named 4.9.4-P1 Tue Mar 25 12:43:20 GMT 1997 jkh@time.cdrom.com:/usr/obj/usr/src/usr.sbin/named
Apr 7 08:15:15 compostella named[81]: Ready to answer queries.
Apr 7 08:15:17 compostella lpd[129]: restarted
Apr 7 08:15:22 compostella pppd[177]: pppd 2.2.0 started by root, uid 0
Apr 7 08:15:56 compostella pppd[177]: Connect: ppp0 <--> /dev/cuaa1
Apr 7 08:15:59 compostella pppd[177]: local IP address 206.28.134.45
Apr 7 08:15:59 compostella pppd[177]: remote IP address 206.28.134.16
Apr 7 08:16:15 compostella ntpdate[185]: step time server 192.31.216.30 offset 1.160724