Hi Stuart, I am not using VLANs. This is a direct link from one machine to another. No switch, no nothing in between. What information can I supply that would be of interest to you?
Best regards, Stephan On Sun, Mar 27, 2022 at 10:18:27AM +0100, Stuart Henderson wrote: > "4 bytes missing" - are you using vlans? if so, can you try without and > does the problem continue? > > > On 2022/03/26 22:05, Stephan Mending wrote: > > Hi *, > > I am currently in the unlucky position having to use two > > usb-to-ethernet-adapters on a router. > > > > Therefore, I bought a model from "ISY" called "USB-A to Gigabit LAN Adapter > > IAD-1010-A". You probably don't care about > > the name of it. > > > > axen0 at uhub0 port 12 configuration 1 interface 0 "ASIX AX88179A" rev > > 2.10/2.00 addr 9 > > axen0: AX88179, address f8:e4:3b:08:10:e2 > > ukphy0 at axen0 phy 3: Generic IEEE 802.3u media interface, rev. 1: OUI > > 0x000700, model 0x0006 > > > > The adapters are configured to act as interfaces for a local network. > > > > As soon as packets are received following messages are printed to > > /var/log/messages: > > > > axen0: invalid buffer(pkt#1), continue > > > > These messages are issued with each and every packet that is received on > > the interface. > > > > Taking a look at tcpdump: > > > > truncated-ip - 4 bytes missing!<normal dhcp request here> > > > > This message prefixes every packet that I sent towards the axen usb-adapter > > (not just dhcp). > > Same behavior for both of the adapters. > > > > Do you guys have any idea, what might be the issue? > > > > Best regards, > > Stephan > >
