Has anyone tried a tcpdump | more ? Or a tcpdump | grep?
When I try to pipe tcpdump output to either more or grep I don't get any
network data output. Anyone have any explanation for this behavior?
This issue's on OpenBSD 3.6. Here's a dmesg from the host in case it helps.
OpenBSD 3.6 (GENERIC) #59: Fri Sep 17 12:32:57 MDT 2004
[EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel Pentium II ("GenuineIntel" 686-class, 512KB L2 cache) 267 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,MMX
real mem = 100245504 (97896K)
avail mem = 84336640 (82360K)
using 1249 buffers containing 5115904 bytes (4996K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(d4) BIOS, date 03/06/98, BIOS32 rev. 0 @ 0xfd7ad
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
pcibios0 at bios0: rev 2.1 @ 0xfd740/0x8c0
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdf50/160 (8 entries)
pcibios0: PCI Interrupt Router at 000:04:0 ("Intel 82371FB ISA" rev 0x00)
pcibios0: PCI bus #1 is the last bus
WARNING: can't reserve area for I/O APIC.
bios0: ROM list: 0xc0000/0x8000
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel 82443LX AGP" rev 0x03
ppb0 at pci0 dev 1 function 0 "Intel 82443LX AGP" rev 0x03
pci1 at ppb0 bus 1
vga1 at pci1 dev 0 function 0 "Cirrus Logic CL-GD5465" rev 0x03
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
pcib0 at pci0 dev 4 function 0 "Intel 82371AB PIIX4 ISA" rev 0x01
pciide0 at pci0 dev 4 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel
0 wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <QUANTUM FIREBALL SE3.2A>
wd0: 16-sector PIO, LBA, 3079MB, 6306048 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <LG, CD-ROM CRD-8322B, 1.02> SCSI0 5/cdrom
removable
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2
uhci0 at pci0 dev 4 function 2 "Intel 82371AB USB" rev 0x01: irq 11
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
"Intel 82371AB Power Mgmt" rev 0x01 at pci0 dev 4 function 3 not configured
le1 at pci0 dev 6 function 0 "AMD 79c970 PCnet-PCI" rev 0x25: irq 5
le1: address 00:60:b0:f7:1d:a8
le1: 8 receive buffers, 2 transmit buffers
le2 at pci0 dev 10 function 0 "AMD 79c970 PCnet-PCI" rev 0x25: irq 10
le2: address 00:60:b0:cd:39:8f
le2: 8 receive buffers, 2 transmit buffers
le3 at pci0 dev 12 function 0 "AMD 79c970 PCnet-PCI" rev 0x25: irq 11
le3: address 00:60:b0:ee:fa:b3
le3: 8 receive buffers, 2 transmit buffers
isa0 at pcib0
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>
sysbeep0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom0: console
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
biomask fb4d netmask ff6d ttymask ffef
pctr: 686-class user-level performance counters enabled
mtrr: Pentium Pro MTRR support
dkcsum: wd0 matched BIOS disk 80
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302
The following disclaimer was inserted automatically and is outside my
control.
This message may contain information that is privileged, confidential and
exempt from disclosure under applicable law. If you are not the intended
recipient of this message you may not store, disclose, copy, forward,
distribute or use this message or its contents for any purpose. If you have
received this communication in error, please notify us immediately by return
e-mail and delete the original message and any attachments from your e-mail
system. Thank you.
