> On Sep 14, 2025, at 12:29, Karl Denninger <k...@denninger.net> wrote:
> Rolling this around in my head some more..... what is the underlying
> interface?
> I ask because I saw this happen with "re" driver interfaces (both IPv4 and 6)
> where it would not get an ARP map and thus couldn't see anything at all on
> the outside - there were enough other screwball things going on with the "re"
> driver (timeouts and similar) that I tossed that and now run on ix and a
> couple of SFP+ transceivers which has been entirely-stable (although igb also
> appears to work as I've gotten my hands on a box with a couple of those and
> tested that too.)
In my case it’s an ix. Connected to a 1gbps switch interface, but an ix
interface. And, the same hardware that was doing this fine a few months ago.
vlan0: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric 0
mtu 1500
options=4600703<RXCSUM,TXCSUM,TSO4,TSO6,LRO,RXCSUM_IPV6,TXCSUM_IPV6,MEXTPG>
ether a4:53:0e:79:b9:82
inet A.B.C.D netmask 0xffffff00 broadcast A.B.C.255
inet6 fe80::6e8:e675:f359:3465%vlan0 prefixlen 64 scopeid 0x4
groups: vlan
vlan: 6 vlanproto: 802.1q vlanpcp: 0 parent interface: ix0
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
nd6 options=1<PERFORMNUD>
ix0: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric 0
mtu 1500
options=4e53fbb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,WOL_UCAST,WOL_MCAST,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6,HWSTATS,MEXTPG>
ether a4:53:0e:79:b9:82
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> Given that arp issue I have to wonder if both are connected -- incidentally
> when I was testing that unit I also tried the "native" split IPv4/IPv6
> requester for dhcp rather than dhcpcd and had the same results, so I tend to
> think dhcpcd is probably not the cause.
Yup. I agree. There’s something off at a lower level, I’m just like “But I
didn’t change anything!!!” At least, that’s what my head keeps telling me. :-)
- Chris
