Date: Fri, 01 May 2020 21:32:13 +0000 From: bugzilla-noreply@freebsd.org To: usb@FreeBSD.org Subject: [Bug 246108] ue0 (ASIX Elec. Corp. AX88178) does not capture packets in promisc mode w/o IP address assigned Message-ID: <bug-246108-19105@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D246108 Bug ID: 246108 Summary: ue0 (ASIX Elec. Corp. AX88178) does not capture packets in promisc mode w/o IP address assigned Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: usb Assignee: usb@FreeBSD.org Reporter: emaste@freebsd.org >From dmesg: ugen0.7: <ASIX Elec. Corp. AX88178> at usbus0 axe0 on uhub2 axe0: <0> on usbus0 miibus0: <MII bus> on axe0 rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0 rgephy0: none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-F= DX, 1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow ue0: <USB Ethernet> on axe0 ue0: Ethernet address: ##:##:##:##:##:## ue0: link state changed to DOWN The USB-Ethernet interface is connected to a source (HDMI-IP extender) that= is continuously generating packets. Bring interface up: # ifconfig ue0 up; ifconfig ue0 ue0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=3D80008<VLAN_MTU,LINKSTATE> ether 00:50:b6:1a:15:80 media: Ethernet autoselect (100baseTX <full-duplex>) status: active nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> Attempt to capture traffic for a few seconds, observe no packets received: # tcpdump -ni ue0 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ue0, link-type EN10MB (Ethernet), capture size 262144 bytes ^C 0 packets captured 0 packets received by filter 0 packets dropped by kernel Assign an address: # ifconfig ue0 10.0.0.1/24 Observe packets received by tcpdump: # tcpdump -ni ue0 -c 5 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ue0, link-type EN10MB (Ethernet), capture size 262144 bytes 17:31:03.055453 IP 192.168.1.238.5004 > 239.255.42.42.5004: UDP, length 0 17:31:03.056452 IP 192.168.1.238.5004 > 239.255.42.42.5004: UDP, length 0 17:31:03.057453 IP 192.168.1.238.5004 > 239.255.42.42.5004: UDP, length 0 17:31:03.058499 IP 192.168.1.238.5004 > 239.255.42.42.5004: UDP, length 0 17:31:03.059483 IP 192.168.1.238.5004 > 239.255.42.42.5004: UDP, length 0 5 packets captured 5 packets received by filter 0 packets dropped by kernel amd64 on Lenovo X1 Carbon 7th gen, r360105+a579cace6430-c268079 --=20 You are receiving this mail because: You are the assignee for the bug.=
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