Hi all,
So, I have an OpenBSD 7.0 router on a PC Engines APU3 (I'll put `dmesg`
in shortly), which directly connects to a NBN-supplied modem (network
termination device / "NBN Connection box"). For reasons unknown, PPPoE
traffic is emitted to the router on VLAN ID 2.
I have the following configuration:
> vk4msl-gap# cat /etc/hostname.em2
>
> up mtu 1526
> vk4msl-gap# cat /etc/hostname.vlan2
> vnetid 2
> parent em2
> txprio 1
> up mtu 1508
> vk4msl-gap# cat /etc/hostname.pppoe0
>
> inet 0.0.0.0 255.255.255.255 NONE \
> pppoedev vlan2 authproto chap \
> authname u...@example.com \
> authkey hunter2 up
> dest 0.0.0.1
> inet6 eui64
> !/sbin/route add default -ifp pppoe0 0.0.0.1
> !/sbin/route add -inet6 default -ifp pppoe0 fe80::%pppoe0
> !sleep 5
> !/sbin/pfctl -f /etc/pf.conf
> !/usr/local/sbin/restart-dhcp6c
> !sleep 5
> !/sbin/pfctl -f /etc/pf.conf
This had been working fine for ages… but the past week it's been up and
down like a yo-yo. I suspect it is *NOT* my end, but rather, common
equipment in our area because others in my street (oddly enough,
related ISPs) have the same problem with connectivity. *BUT* I need to
appease L1 tech support, some of whom think a serial port is where
sailors go for breakfast.
Sometimes, the connection drops out, then returns on its own, some
minutes later.
Sometimes it does not return until I reboot the router.
> Aug 8 19:04:48 vk4msl-gap /bsd: pppoe0: host unique tag found, but it
> belongs to a connection in state 3
> Aug 8 19:04:48 vk4msl-gap /bsd: pppoe: received PADO but could not find
> request for it
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe0: host unique tag found, but it
> belongs to a connection in state 3
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe: received PADO but could not find
> request for it
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe0: host unique tag found, but it
> belongs to a connection in state 3
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe: received PADO but could not find
> request for it
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe0: host unique tag found, but it
> belongs to a connection in state 3
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe: received PADO but could not find
> request for it
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe0: host unique tag found, but it
> belongs to a connection in state 3
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe: received PADO but could not find
> request for it
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe0: host unique tag found, but it
> belongs to a connection in state 3
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe: received PADO but could not find
> request for it
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe0: host unique tag found, but it
> belongs to a connection in state 3
> Aug 8 19:04:49 vk4msl-gap /bsd: pppoe: received PADO but could not find
> request for it
> Aug 8 19:05:44 vk4msl-gap /bsd: pppoe0: received unexpected PADO
> Aug 8 19:05:45 vk4msl-gap last message repeated 13 times
> Aug 8 19:06:08 vk4msl-gap dhcp6c[11939]: client6_send: transmit failed:
> Network is down
> Aug 8 19:06:47 vk4msl-gap /bsd: pppoe0: received unexpected PADO
> Aug 8 19:06:47 vk4msl-gap last message repeated 6 times
> Aug 8 19:06:47 vk4msl-gap /bsd: pppoe0: host unique tag found, but it
> belongs to a connection in state 3
> Aug 8 19:06:47 vk4msl-gap /bsd: pppoe: received PADO but c
> Aug 8 19:06:47 vk4msl-gap /bsd: ould not fi
> Aug 8 19:06:47 vk4msl-gap /bsd: nd
> Aug 8 19:06:47 vk4msl-gap /bsd: requ
> Aug 8 19:06:47 vk4msl-gap /bsd: est
> Aug 8 19:06:47 vk4msl-gap /bsd: fo
> Aug 8 19:06:47 vk4msl-gap /bsd: r i
> Aug 8 19:06:47 vk4msl-gap /bsd: t
> Aug 8 19:06:48 vk4msl-gap /bsd: pppoe0: host unique tag found, but it
> belongs to a connection in state 3
That's an excerpt of /var/log/messages.
I no
te t
he o
dd w
rapp
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he t
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in t
he l
og,
no i
dea
why
that
happ
ens.
I note that odd wrapping does not occur in `dmesg` output. I'll see if
I can get some PPPoE frames when the link is next down. I'm not sure
if there's a way to force a PADI attempt, man page does not mention
any. Presumably the "state 3" is some-sort of offline state, I'd have
to read the source to figure what that is.
Should OpenBSD maybe respond to other PADO requests, or does it _have_
to respond to only the PADO replying to its PADI -- is that a PPPoE
requirement?
Have there been any significant changes in the PPPoE driver between 7.0
and 7.1?
The following is my `dmesg`:
OpenBSD 7.0 (GENERIC.MP) #0: Sun May 15 02:01:36 MDT 2022
t...@syspatch-70-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 4261076992 (4063MB)
avail mem = 4115894272 (3925MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xdffb7020 (7 entries)
bios0: vendor coreboot version "4.0.7" date 03/02/2017
bios0: PC Engines APU3
acpi0 at bios0: ACPI 4.0
acpi0: sleep states S0 S1 S2 S3 S4 S5
acpi0: tables DSDT FACP SSDT APIC HEST SSDT SSDT HPET
acpi0: wakeup devices PWRB(S4) PBR4(S4) PBR5(S4) PBR6(S4) PBR7(S4) PBR8(S4)
UOH1(S3) UOH3(S3) UOH5(S3) XHC0(S4)
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD GX-412TC SOC, 998.26 MHz, 16-30-01
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,MWAIT,SSSE3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,TOPEXT,DBKP,PERFTSC,PCTRL3,ITSC,BMI1,XSAVEOPT
cpu0: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 2MB 64b/line
16-way L2 cache
cpu0: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative
cpu0: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: AMD GX-412TC SOC, 998.14 MHz, 16-30-01
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,MWAIT,SSSE3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,TOPEXT,DBKP,PERFTSC,PCTRL3,ITSC,BMI1,XSAVEOPT
cpu1: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 2MB 64b/line
16-way L2 cache
cpu1: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative
cpu1: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 2 (application processor)
cpu2: AMD GX-412TC SOC, 998.14 MHz, 16-30-01
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,MWAIT,SSSE3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,TOPEXT,DBKP,PERFTSC,PCTRL3,ITSC,BMI1,XSAVEOPT
cpu2: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 2MB 64b/line
16-way L2 cache
cpu2: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative
cpu2: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: AMD GX-412TC SOC, 998.34 MHz, 16-30-01
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,MWAIT,SSSE3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,TOPEXT,DBKP,PERFTSC,PCTRL3,ITSC,BMI1,XSAVEOPT
cpu3: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 2MB 64b/line
16-way L2 cache
cpu3: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative
cpu3: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative
cpu3: smt 0, core 3, package 0
ioapic0 at mainbus0: apid 4 pa 0xfec00000, version 21, 24 pins
ioapic1 at mainbus0: apid 5 pa 0xfec20000, version 21, 32 pins, remapped
acpihpet0 at acpi0: 14318180 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PBR4)
acpiprt2 at acpi0: bus 1 (PBR5)
acpiprt3 at acpi0: bus 2 (PBR6)
acpiprt4 at acpi0: bus 3 (PBR7)
acpiprt5 at acpi0: bus -1 (PBR8)
acpibtn0 at acpi0: PWRB
acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
acpicmos0 at acpi0
acpicpu0 at acpi0: C2(0@400 io@0x1771), C1(@1 halt!), PSS
acpicpu1 at acpi0: C2(0@400 io@0x1771), C1(@1 halt!), PSS
acpicpu2 at acpi0: C2(0@400 io@0x1771), C1(@1 halt!), PSS
acpicpu3 at acpi0: C2(0@400 io@0x1771), C1(@1 halt!), PSS
cpu0: 998 MHz: speeds: 1000 800 600 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "AMD 16h Root Complex" rev 0x00
pchb1 at pci0 dev 2 function 0 "AMD 16h Host" rev 0x00
ppb0 at pci0 dev 2 function 2 "AMD 16h PCIE" rev 0x00: msi
pci1 at ppb0 bus 1
em0 at pci1 dev 0 function 0 "Intel I211" rev 0x03: msi, address
00:0d:b9:4a:f9:f8
ppb1 at pci0 dev 2 function 3 "AMD 16h PCIE" rev 0x00: msi
pci2 at ppb1 bus 2
em1 at pci2 dev 0 function 0 "Intel I211" rev 0x03: msi, address
00:0d:b9:4a:f9:f9
ppb2 at pci0 dev 2 function 4 "AMD 16h PCIE" rev 0x00: msi
pci3 at ppb2 bus 3
em2 at pci3 dev 0 function 0 "Intel I211" rev 0x03: msi, address
00:0d:b9:4a:f9:fa
ccp0 at pci0 dev 8 function 0 "AMD 16h Crypto" rev 0x00
xhci0 at pci0 dev 16 function 0 "AMD Bolton xHCI" rev 0x11: msi, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "AMD xHCI root hub" rev 3.00/1.00
addr 1
ahci0 at pci0 dev 17 function 0 "AMD Hudson-2 SATA" rev 0x40: apic 4 int 19,
AHCI 1.3
ahci0: port 0: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, ADATA_IMSS316-25, S180> naa.5707c18100a1ce88
sd0: 244198MB, 512 bytes/sector, 500118192 sectors, thin
ehci0 at pci0 dev 18 function 0 "AMD Hudson-2 USB2" rev 0x39: apic 4 int 18
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "AMD EHCI root hub" rev 2.00/1.00
addr 1
ehci1 at pci0 dev 19 function 0 "AMD Hudson-2 USB2" rev 0x39: apic 4 int 18
usb2 at ehci1: USB revision 2.0
uhub2 at usb2 configuration 1 interface 0 "AMD EHCI root hub" rev 2.00/1.00
addr 1
piixpm0 at pci0 dev 20 function 0 "AMD Hudson-2 SMBus" rev 0x42: SMI
iic0 at piixpm0
iic1 at piixpm0
pcib0 at pci0 dev 20 function 3 "AMD Hudson-2 LPC" rev 0x11
sdhc0 at pci0 dev 20 function 7 "AMD Bolton SD/MMC" rev 0x01: apic 4 int 16
sdhc0: SDHC 2.0, 50 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, dma
pchb2 at pci0 dev 24 function 0 "AMD 16h Link Cfg" rev 0x00
pchb3 at pci0 dev 24 function 1 "AMD 16h Address Map" rev 0x00
pchb4 at pci0 dev 24 function 2 "AMD 16h DRAM Cfg" rev 0x00
km0 at pci0 dev 24 function 3 "AMD 16h Misc Cfg" rev 0x00
pchb5 at pci0 dev 24 function 4 "AMD 16h CPU Power" rev 0x00
pchb6 at pci0 dev 24 function 5 "AMD 16h Misc Cfg" rev 0x00
isa0 at pcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com0: console
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
wbsio0 at isa0 port 0x2e/2: NCT5104D rev 0x52
vmm0 at mainbus0: SVM/RVI
dt: 445 probes
scsibus2 at sdmmc0: 2 targets, initiator 0
sd1 at scsibus2 targ 1 lun 0: <SD/MMC, SM16G, 0080> removable
sd1: 15193MB, 512 bytes/sector, 31116288 sectors
uhub3 at uhub1 port 1 configuration 1 interface 0 "Advanced Micro Devices Hub"
rev 2.00/0.18 addr 2
uhub4 at uhub2 port 1 configuration 1 interface 0 "Advanced Micro Devices Hub"
rev 2.00/0.18 addr 2
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
root on sd0a (5afce21eca82ba68.a) swap on sd0b dump on sd0b
pppoe0: received unexpected PADO
pppoe0: received unexpected PADO
pppoe0: received unexpected PADO
pppoe0: received unexpected PADO
pppoe0: received unexpected PADO
pppoe0: received unexpected PADO
pppoe0: received unexpected PADO
pppoe0: received unexpected PADO
pppoe0: host unique tag found, but it belongs to a connection in state 3
pppoe: received PADO but could not find request for it
pppoe0: host unique tag found, but it belongs to a connection in state 3
pppoe: received PADO but could not find request for it
pppoe0: host unique tag found, but it belongs to a connection in state 3
pppoe: received PADO but could not find request for it
pppoe0: host unique tag found, but it belongs to a connection in state 3
pppoe: received PADO but could not find request for it
pppoe0: host unique tag found, but it belongs to a connection in state 3
pppoe: received PADO but could not find request for it
Regards,
--
Stuart Longland (aka Redhatter, VK4MSL)
I haven't lost my mind...
...it's backed up on a tape somewhere.
