Hi list,

I'd like to build a firewall (OpenBSD 4.3 i386) using one em0 interface
(management only), and two pcnX interface, which are based AT-2701FTX
cards. Those cards are seen by OpenBSD as the following devices:

pcn0 at pci1 dev 7 function 0 "AMD 79c970 PCnet-PCI" rev 0x54, Am79c976,
rev 4: irq 9, address 00:15:77:77:6a:b2
acphy0 at pcn0 phy 1: AC101 10/100 PHY, rev. 11
ifmedia_set: no match for 0x20/0xffffffff
pcn1 at pci1 dev 8 function 0 "AMD 79c970 PCnet-PCI" rev 0x54, Am79c976,
rev 4: irq 11, address 00:15:77:9c:17:b4
acphy1 at pcn1 phy 1: AC101 10/100 PHY, rev. 11
ifmedia_set: no match for 0x20/0xffffffff

The interfaces are up and running, but as soon as there's traffic on
those interfaces, they throw CRC errors; from dmesg:

Jul 18 12:00:02 puffy newsyslog[28063]: logfile turned over
Jul 18 12:00:02 puffy syslogd: restart
Jul 18 12:00:03 puffy /bsd: pcn0: CRC error
Jul 18 12:00:53 puffy /bsd: pcn0: CRC error
Jul 18 12:01:27 puffy last message repeated 3 times
Jul 18 12:10:34 puffy last message repeated 2 times
Jul 18 12:16:55 puffy last message repeated 6 times
Jul 18 12:17:03 puffy /bsd: pcn0: CRC error
Jul 18 12:17:18 puffy last message repeated 3 times
Jul 18 12:18:03 puffy /bsd: pcn0: CRC error
Jul 18 12:18:07 puffy /bsd: pcn0: CRC error
Jul 18 12:20:46 puffy last message repeated 10 times

and so on.

Is that known behaviour on this cards? How can I help to fix this problem?

Best,

Timo

-----

full dmesg:

OpenBSD 4.3 (GENERIC) #698: Wed Mar 12 11:07:05 MDT 2008
    [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel(R) Pentium(R) 4 CPU 2.26GHz ("GenuineIntel" 686-class) 2.26 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF
real mem  = 534810624 (510MB)
avail mem = 509075456 (485MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 04/28/03, BIOS32 rev. 0 @ 0xffe90,
SMBIOS rev. 2.3 @ 0xf0450 (67 entries)
bios0: vendor Dell Computer Corporation version "A06" date 04/28/2003
bios0: Dell Computer Corporation OptiPlex GX260
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
acpi at bios0 function 0x0 not configured
pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfeae0/176 (9 entries)
pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82801BA LPC" rev 0x00)
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0xb800! 0xcb800/0xe800 0xda000/0xe800
0xe8800/0x1800
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel 82845G Host" rev 0x01
agp0 at pchb0: aperture at 0xe8000000, size 0x8000000
vga1 at pci0 dev 2 function 0 "Intel 82845G Video" rev 0x01
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
uhci0 at pci0 dev 29 function 0 "Intel 82801DB USB" rev 0x01: irq 9
uhci1 at pci0 dev 29 function 1 "Intel 82801DB USB" rev 0x01: irq 11
uhci2 at pci0 dev 29 function 2 "Intel 82801DB USB" rev 0x01: irq 10
ehci0 at pci0 dev 29 function 7 "Intel 82801DB USB" rev 0x01: irq 3
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
ppb0 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0x81
pci1 at ppb0 bus 1
pcn0 at pci1 dev 7 function 0 "AMD 79c970 PCnet-PCI" rev 0x54, Am79c976,
rev 4: irq 9, address 00:15:77:77:6a:b2
acphy0 at pcn0 phy 1: AC101 10/100 PHY, rev. 11
ifmedia_set: no match for 0x20/0xffffffff
pcn1 at pci1 dev 8 function 0 "AMD 79c970 PCnet-PCI" rev 0x54, Am79c976,
rev 4: irq 11, address 00:15:77:9c:17:b4
acphy1 at pcn1 phy 1: AC101 10/100 PHY, rev. 11
ifmedia_set: no match for 0x20/0xffffffff
em0 at pci1 dev 12 function 0 "Intel PRO/1000MT (82540EM)" rev 0x02: irq
10, address 00:0b:db:4f:18:8f
ichpcib0 at pci0 dev 31 function 0 "Intel 82801DB LPC" rev 0x01: 24-bit
timer at 3579545Hz
pciide0 at pci0 dev 31 function 1 "Intel 82801DB IDE" rev 0x01: DMA,
channel 0 configured to compatibility, channel 1 configured to compatibility
wd0 at pciide0 channel 0 drive 0: <ST310211A>
wd0: 16-sector PIO, LBA, 9541MB, 19541088 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <HL-DT-ST, CD-ROM GCR-8481B, 1.06> SCSI0
5/cdrom removable
cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2
ichiic0 at pci0 dev 31 function 3 "Intel 82801DB SMBus" rev 0x01: irq 11
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 256MB DDR SDRAM non-parity PC2100CL2.5
spdmem1 at iic0 addr 0x51: 256MB DDR SDRAM non-parity PC2100CL2.5
auich0 at pci0 dev 31 function 5 "Intel 82801DB AC97" rev 0x01: irq 11,
ICH4 AC97
ac97: codec id 0x41445374 (Analog Devices AD1981B)
ac97: codec features headphone, 20 bit DAC, No 3D Stereo
audio0 at auich0
usb1 at uhci0: USB revision 1.0
uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb2 at uhci1: USB revision 1.0
uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb3 at uhci2: USB revision 1.0
uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1
isa0 at ichpcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
biomask ff6d netmask ff6d ttymask ffef
mtrr: Pentium Pro MTRR support
softraid0 at root
root on wd0a swap on wd0b dump on wd0b
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