I recently rescued some hardware from the trashpile and have a question regarding it’s ethernet bypass port. Specifically a Citrix SD-WAN 210 Appliance.
Two of the ports are setup as a bypass (I believe hardware relay that is default closed). These ports show up in Linux but stay in a DOWN state even when plugged in, and I can confirm they are operating in a bypass mode. I’m hoping to find a way to disable that bypass, so the ports are usable under linux.
It’s a pretty standard Intel C3000 platform. Plugging in serial during boot showed a BIOS, from there you can boot a USB and install linux as normal.
My two theories is that it’s either a feature of the Intel I211 chipset, or something totally custom (I imagine it’d be simple to do on the PHY).
I also have a dump of the original linux install, which I may try looking through.
lscpu:
Summary
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 39 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1
Vendor ID: GenuineIntel
BIOS Vendor ID: Intel(R) Corporation
Model name: Intel(R) Atom(TM) CPU C3338 @ 1.50GHz
BIOS Model name: Intel(R) Atom(TM) CPU C3338 @ 1.50GHz
CPU family: 6
Model: 95
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 1
Stepping: 1
BogoMIPS: 3000.00
Flags: 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 ht tm pbe syscall nx pdpe1gb r
dtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 mon
itor ds_cpl vmx est tm2 ssse3 sdbg cx16 xtpr pdcm sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave rdrand lahf_lm 3dnowprefetc
h cpuid_fault epb cat_l2 ssbd ibrs ibpb stibp tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust smep erms mpx rdt_a rdseed smap cl
flushopt intel_pt sha_ni xsaveopt xsavec xgetbv1 xsaves dtherm arat pln pts vnmi md_clear arch_capabilities
Virtualization features:
Virtualization: VT-x
Caches (sum of all):
L1d: 48 KiB (2 instances)
L1i: 64 KiB (2 instances)
L2: 4 MiB (2 instances)
NUMA:
NUMA node(s): 1
NUMA node0 CPU(s): 0,1
Vulnerabilities:
Gather data sampling: Not affected
Itlb multihit: Not affected
L1tf: Not affected
Mds: Not affected
Meltdown: Not affected
Mmio stale data: Not affected
Reg file data sampling: Mitigation; Clear Register File
Retbleed: Not affected
Spec rstack overflow: Not affected
Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl
Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Spectre v2: Mitigation; Retpolines; IBPB conditional; IBRS_FW; STIBP disabled; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected
Srbds: Not affected
Tsx async abort: Not affected
lspci:
Summary
00:00.0 Host bridge: Intel Corporation Atom Processor C3000 Series System Agent (rev 11)
00:04.0 Host bridge: Intel Corporation Atom Processor C3000 Series Error Registers (rev 11)
00:05.0 Generic system peripheral [0807]: Intel Corporation Atom Processor C3000 Series Root Complex Event Collector (rev 11)
00:09.0 PCI bridge: Intel Corporation Atom Processor C3000 Series PCI Express Root Port #0 (rev 11)
00:0a.0 PCI bridge: Intel Corporation Atom Processor C3000 Series PCI Express Root Port #1 (rev 11)
00:0b.0 PCI bridge: Intel Corporation Atom Processor C3000 Series PCI Express Root Port #2 (rev 11)
00:0c.0 PCI bridge: Intel Corporation Atom Processor C3000 Series PCI Express Root Port #3 (rev 11)
00:0f.0 PCI bridge: Intel Corporation Atom Processor C3000 Series PCI Express Root Port #5 (rev 11)
00:12.0 System peripheral: Intel Corporation Atom Processor C3000 Series SMBus Contoller - Host (rev 11)
00:14.0 SATA controller: Intel Corporation Atom Processor C3000 Series SATA Controller 1 (rev 11)
00:15.0 USB controller: Intel Corporation Atom Processor C3000 Series USB 3.0 xHCI Controller (rev 11)
00:16.0 PCI bridge: Intel Corporation Atom Processor C3000 Series Integrated LAN Root Port #0 (rev 11)
00:17.0 PCI bridge: Intel Corporation Atom Processor C3000 Series Integrated LAN Root Port #1 (rev 11)
00:18.0 Communication controller: Intel Corporation Atom Processor C3000 Series ME HECI 1 (rev 11)
00:1f.0 ISA bridge: Intel Corporation Atom Processor C3000 Series LPC or eSPI (rev 11)
00:1f.2 Memory controller: Intel Corporation Atom Processor C3000 Series Power Management Controller (rev 11)
00:1f.4 SMBus: Intel Corporation Atom Processor C3000 Series SMBus controller (rev 11)
00:1f.5 Serial bus controller: Intel Corporation Atom Processor C3000 Series SPI Controller (rev 11)
01:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
02:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
03:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
04:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
06:00.0 Ethernet controller: Intel Corporation Ethernet Connection X553 1GbE (rev 11)
07:00.0 Ethernet controller: Intel Corporation Ethernet Connection X553 1GbE (rev 11)
lsusb:
Summary
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 1199:9071 Sierra Wireless, Inc. AirPrime MC7455 3G/4G LTE Modem