On 9/14/2025 12:38, Chris Ross wrote:
On Sep 14, 2025, at 12:29, Karl Denninger<[email protected]> 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>

If you find anything a note back here would be greatly excellent.  I do note that per the various notes from long ago I have both tso and lro turned off (but I use ipfw, which is where that apparently comes from) on the outside interface -- but I doubt that is involved as I did try with it on and it didn't change anything.


--
Karl Denninger
[email protected]
/The Market Ticker/
/[S/MIME encrypted email preferred]/

Attachment: smime.p7s
Description: S/MIME Cryptographic Signature

Reply via email to