Peter N. M. Hansteen wrote:
> lscarne...@veltrac.com.br writes:
>
>> My script is very simple (as you will see below), but by some reason,
>> my machines behind the firewall can't send large emails, or emails
>> with attached files.
>
> You don't offer any details of the other parts of the mail handling
> setup, but my first suspect would be content filtering of some kind
> kicks in noticeably only when there's attachments to be dechiphered.
>
> My other suspect is that
>
>> match in all scrub (no-df)
>
> somehow tickles the receiving end the wrong way. Others have reported
> to me privately that going from 4.4 and
>
> scrub in all
>
> to 4.6 and
>
> match in all scrub (reassemble tcp)
>
> worked OK on most traffic, but slowed down some https traffic
> horribly. Then some apparently random experimentation lead to trying
> different max-mss values and with
>
> match in all scrub (no-df max-mss 1440)
>
> the problem went away. tcpdump output of successful and failing
> connetions would be instructive, along with the actual error messages,
> if any.
>
> - P
I too have this feeling, that things somehow got really slow,
since scrub went away and match in scrub came.
I'm using match in all scrub (no-df max-mss 1440)
but some pages get weird TCP DUP ACKS, OUT-OF-ORDER Packets and
Previous Segment Lost (Wireshark slang).
Wikipedia is such a page for example - takes about 10 seconds to load
sometimes.
I don't think I had this with 4.5.
I'm running an Alix 2c3 board, with pppoe to DSL.
OpenBSD 4.6-current (GENERIC) #452: Thu Dec 10 15:52:44 MST 2009
dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
RTC BIOS diagnostic error 80<clock_battery>
cpu0: Geode(TM) Integrated Processor by AMD PCS ("AuthenticAMD" 586-class)
499 MHz
cpu0: FPU,DE,PSE,TSC,MSR,CX8,SEP,PGE,CMOV,CFLUSH,MMX
real mem = 268009472 (255MB)
avail mem = 251064320 (239MB)
RTC BIOS diagnostic error 80<clock_battery>
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 01/27/08, BIOS32 rev. 0 @ 0xfceb2
pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000
pcibios0: pcibios_get_intr_routing - function not supported
pcibios0: PCI IRQ Routing information unavailable.
pcibios0: PCI bus #0 is the last bus
bios0: ROM list: 0xe0000/0xa800
cpu0 at mainbus0: (uniprocessor)
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 1 function 0 "AMD Geode LX" rev 0x31
glxsb0 at pci0 dev 1 function 2 "AMD Geode LX Crypto" rev 0x00: RNG AES
vr0 at pci0 dev 9 function 0 "VIA VT6105M RhineIII" rev 0x96: irq 10,
address 00:0d:b9:12:6b:04
ukphy0 at vr0 phy 1: Generic IEEE 802.3u media interface, rev. 3: OUI
0x004063, model 0x0034
vr1 at pci0 dev 10 function 0 "VIA VT6105M RhineIII" rev 0x96: irq 11,
address 00:0d:b9:12:6b:05
ukphy1 at vr1 phy 1: Generic IEEE 802.3u media interface, rev. 3: OUI
0x004063, model 0x0034
vr2 at pci0 dev 11 function 0 "VIA VT6105M RhineIII" rev 0x96: irq 12,
address 00:0d:b9:12:6b:06
ukphy2 at vr2 phy 1: Generic IEEE 802.3u media interface, rev. 3: OUI
0x004063, model 0x0034
ath0 at pci0 dev 12 function 0 "Atheros AR2413" rev 0x01: irq 9
ath0: AR2413 7.8 phy 4.5 rf 5.6, FCC2A*, address 00:1d:0f:af:98:88
glxpcib0 at pci0 dev 15 function 0 "AMD CS5536 ISA" rev 0x03: rev 0, 32-bit
3579545Hz timer, watchdog, gpio
gpio0 at glxpcib0: 32 pins
pciide0 at pci0 dev 15 function 2 "AMD CS5536 IDE" rev 0x01: DMA, channel 0
wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <SanDisk SDCFX3-2048>
wd0: 4-sector PIO, LBA, 1953MB, 4001760 sectors
wd0(pciide0:0:0): using PIO mode 4, DMA mode 2
pciide0: channel 1 ignored (disabled)
ohci0 at pci0 dev 15 function 4 "AMD CS5536 USB" rev 0x02: irq 15, version
1.0, legacy support
ehci0 at pci0 dev 15 function 5 "AMD CS5536 USB" rev 0x02: irq 15
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "AMD EHCI root hub" rev 2.00/1.00 addr 1
isa0 at glxpcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com0: console
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
usb1 at ohci0: USB revision 1.0
uhub1 at usb1 "AMD OHCI root hub" rev 1.00/1.00 addr 1
biomask e1ef netmask ffef ttymask ffff
mtrr: K6-family MTRR support (2 registers)
nvram: invalid checksum
vscsi0 at root
scsibus0 at vscsi0: 256 targets
softraid0 at root
root on wd0a swap on wd0b dump on wd0b
WARNING: / was not properly unmounted
clock: unknown CMOS layout
WARNING: clock time much less than file system time
WARNING: using file system time
WARNING: CHECK AND RESET THE DATE!
