Ztratovost na sitovem rozhrani routeru

[Bc. Radek Krejca]

Dobry den,

  mam FreeBSD jako router a mam problem s tim, ze mi neco nestiha
  (nafackoval bych si za definici "neco nestiha", ale nevim, kde co
  hledat, takze vubec netusim, co jeste zkusit).

  Chovani je nasledujici:

  Dam-li ping z jakehokoliv pocitace na tento router, je ping
  ztratovy, pri zatizenem routeru az 15 %. Navic rychlost kolisa v
  radu desitek ms.

  Dam-li z tohoto routeru ping na ten pocitac, ze ktereho pingal ze
  ztratou, jede ping bez problemu. Provedl jsem jiz vymenu sitove
  karty, vysledek vice mene stejny.

  V sysctl jsem nastavoval toto:
--------------------------------------------
net.inet.tcp.blackhole=1
#net.inet.icmp.log_redirect=1
net.inet.icmp.drop_redirect=1

net.inet.ip.fastforwarding=1
net.inet.tcp.recvspace=262144
net.inet.tcp.sendspace=262144
kern.ipc.maxsockbuf=33554432
kern.ipc.nmbclusters=32768
--------------------------------------------

Firewall je vypnut.

Vypnuto je i vse, co by mohlo sahat do paketu.

uname:
--------------------------------------------
FreeBSD server 6.1-RELEASE-p12 FreeBSD 6.1-RELEASE-p12 #3: Mon Feb 25 13:09:18 CET 2008
--------------------------------------------
a jeste dmesg:
--------------------------------------------
Copyright (c) 1992-2006 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 6.1-RELEASE-p12 #3: Mon Feb 25 13:09:18 CET 2008
    root at server:/usr/obj/usr/src/sys/DL360-G4
ACPI APIC Table: <HP     00000083>
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 3.00GHz (3000.12-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf43  Stepping = 3
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x641d<SSE3,RSVD2,MON,DS_CPL,CNTX-ID,CX16,<b14>>
  AMD Features=0x20000000<LM>
  Logical CPUs per core: 2
real memory  = 1073688576 (1023 MB)
avail memory = 1045954560 (997 MB)
ioapic1: Changing APIC ID to 9
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 24-47 on motherboard
ioapic2 <Version 2.0> irqs 48-71 on motherboard
ioapic3 <Version 2.0> irqs 72-95 on motherboard
kbd1 at kbdmux0
acpi0: <HP P54> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x908-0x90b on acpi0
cpu0: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 2.0 on pci0
pci13: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> at device 4.0 on pci0
pci6: <ACPI PCI bus> on pcib2
pcib3: <ACPI PCI-PCI bridge> at device 0.0 on pci6
pci7: <ACPI PCI bus> on pcib3
pcib4: <ACPI PCI-PCI bridge> at device 0.2 on pci6
pci10: <ACPI PCI bus> on pcib4
em0: <Intel(R) PRO/1000 Network Connection Version - 3.2.18> port 0x5000-0x503f mem 0xfdfe0000-0xfdffffff,0xfdf80000-0xfdfbffff irq 72 at device 1.0 on pci10
em0: Ethernet address: 00:1b:21:09:9b:c0
em1: <Intel(R) PRO/1000 Network Connection Version - 3.2.18> port 0x5040-0x507f mem 0xfdf60000-0xfdf7ffff,0xfdf00000-0xfdf3ffff irq 73 at device 1.1 on pci10
em1: Ethernet address: 00:1b:21:09:9b:c1
pcib5: <ACPI PCI-PCI bridge> at device 6.0 on pci0
pci3: <ACPI PCI bus> on pcib5
pcib6: <ACPI PCI-PCI bridge> at device 28.0 on pci0
pci2: <ACPI PCI bus> on pcib6
ciss0: <HP Smart Array 6i> port 0x4000-0x40ff mem 0xfdef0000-0xfdef1fff,0xfde80000-0xfdebffff irq 24 at device 1.0 on pci2
ciss0: [GIANT-LOCKED]
bge0: <Broadcom BCM5704C Dual Gigabit Ethernet, ASIC rev. 0x2100> mem 0xfde70000-0xfde7ffff irq 25 at device 2.0 on pci2
miibus0: <MII bus> on bge0
brgphy0: <BCM5704 10/100/1000baseTX PHY> on miibus0
brgphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, 1000baseTX-FDX, auto
bge0: Ethernet address: 00:16:35:5b:89:b4
bge1: <Broadcom BCM5704C Dual Gigabit Ethernet, ASIC rev. 0x2100> mem 0xfde60000-0xfde6ffff irq 26 at device 2.1 on pci2
miibus1: <MII bus> on bge1
brgphy1: <BCM5704 10/100/1000baseTX PHY> on miibus1
brgphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, 1000baseTX-FDX, auto
bge1: Ethernet address: 00:16:35:5b:89:b3
uhci0: <UHCI (generic) USB controller> port 0x2000-0x201f irq 16 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <UHCI (generic) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <UHCI (generic) USB controller> port 0x2020-0x203f irq 19 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <UHCI (generic) USB controller> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
pci0: <base peripheral> at device 29.4 (no driver attached)
pci0: <base peripheral, interrupt controller> at device 29.5 (no driver attached)
ehci0: <Intel 6300ESB USB 2.0 controller> mem 0xfbee0000-0xfbee03ff irq 23 at device 29.7 on pci0
ehci0: [GIANT-LOCKED]
usb2: EHCI version 1.0
usb2: companion controllers, 2 ports each: usb0 usb1
usb2: <Intel 6300ESB USB 2.0 controller> on ehci0
usb2: USB revision 2.0
uhub2: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub2: 4 ports with 4 removable, self powered
pcib7: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci1: <ACPI PCI bus> on pcib7
pci1: <display, VGA> at device 3.0 (no driver attached)
pci1: <base peripheral> at device 4.0 (no driver attached)
pci1: <base peripheral> at device 4.2 (no driver attached)
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel 6300ESB UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x500-0x50f irq 18 at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
acpi_tz0: <Thermal Zone> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
sio0: <Standard PC COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
fdc0: <floppy drive controller (FDE)> port 0x3f2-0x3f5 irq 6 drq 2 on acpi0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xcbfff,0xee000-0xeffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 3000124500 Hz quality 800
Timecounters tick every 1.000 msec
acd0: CDROM <TSSTcorpCD-ROM TS-L162C/N203> at ata0-master UDMA33
da0 at ciss0 bus 0 target 0 lun 0
da0: <COMPAQ RAID 1  VOLUME OK> Fixed Direct Access SCSI-0 device
da0: 135.168MB/s transfers
da0: 69459MB (142253280 512 byte sectors: 255H 32S/T 17433C)
Trying to mount root from ufs:/dev/da0s1a
--------------------------------------------

Bohuzel nemohu na tomto stroji moc experimentovat, protoze je v tuto
chvili stale jeste aktivni a do doby, nez bude pripraveno jine
reseni, musi jeste zustat na svem miste. Pokud bude treba jeste dodat
nejake vypisy a podklady, rad dodam.

Diky moc.

Radek

-- 
S pozdravem,
 Bc. Radek Krejca
 STARNET, s. r. o.
 radek at ceskedomeny.cz