Maciej Żenczykowski

My understanding is that dns66 provides a VPN with DNS servers (possibly grabbed from underlying network) a.b.c.d and e.f.g.h along with routes a.b.c.d/32 and e.f.g.h/32. So that all traffic to...

AFAIK it probably depends on whether it's enabled in opportunistic mode or not. Opportunistic is trivial to block (just block tcp/853) and requires the normally chosen (presumably via DHCP) dns...

``` $ lspci -nn | egrep -i Ether 00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection (2) I218-LM [8086:15a0] (rev 05) 05:00.0 Ethernet controller [0200]: Tehuti Networks Ltd. TN9710P 10GBase-T/NBASE-T...

I think the local config is: ``` $ cat /etc/udev/rules.d/70-persistent-net.rules | egrep -v '^#|^ *$' SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="a0:....", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="a0:....", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*",...

``` $ for i in /sys/class/net/e*; do echo --$i--; udevadm test-builtin net_id $i 2>/dev/null; done --/sys/class/net/eno1-- ID_NET_NAMING_SCHEME=v243 ID_NET_NAME_MAC=enxa08.... ID_OUI_FROM_DATABASE=Hewlett Packard ID_NET_NAME_ONBOARD=eno1 ID_NET_LABEL_ONBOARD=LAN (AMT) ID_NET_NAME_PATH=enp0s25 --/sys/class/net/ens4f0-- ID_NET_NAMING_SCHEME=v243 ID_NET_NAME_MAC=enx000.... ID_OUI_FROM_DATABASE=Sunrich Technology Limited...

So looks like ID_NET_NAME_PATH is unique but ID_NET_NAME_SLOT is not (there's two ens6's)

lspci tree graph with irrelevant portions stripped ``` $ lspci -t -nn -+-[0000:ff]-+-08.0 | +-08.2 ... | \-1f.2 +-[0000:80]-+-00.0-[81]-- | +-01.0-[82]-- | +-01.1-[83]-- | +-02.0-[84-86]--+-00.0

I assume this probably means the x550 based card is based around a single dual port chip, while the tehuti card is simply two single port chips on a single...

I *think* the easiest thing to do is probably just update /etc/udev/rules.d/70-persistent-net.rules to manually name these nics based on mac addresses. AFAICT pci slot based naming is just broken with...

If you have a patch for me to test I can do that no problem. In the meantime I've added manual mac->name mappings. On Thu, Feb 27, 2020 at 2:09...