Unknown Ether type ingress

Answers

• BWC Cybersecurity Overlord ✭✭✭

  January 2023

  @Chamil about Ethertype 0x8ffd, I did not found any information, you should ask the vendor of the device with the related MAC address what it is about. Known Ethertypes I looked at:

  https://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml

  
  

  About the 2nd Screenshot, it seems that you're receiving VLAN 100 tagged packets on your X0. Check your Network Interface and Switch configuration for that port. If X0 does not have a sub interface :V100 then make sure your switch is not polluting the port with tagged packets.

  --Michael@BWC

  0
• Simon_Weel Enthusiast ✭✭

  January 2023

  Ethertype 0x8ffd seems to be related to Aruba network devices - it pops up in a Wireshark script.

  1
• BWC Cybersecurity Overlord ✭✭✭

  January 2023

  @Simon_Weel nice catch, @Chamil are you using any Aruba Instant On devices?

  --Michael@BWC

  0
• LEE_S2022 Newbie ✭

  October 2023

  Hi,

  I've the same issue, message "DROPPED, Drop Code: 17(Unknown Ether type ingress."

  At packet monitor, shown:

  *Packet number: 3*
  Header Values:
   Bytes captured: 60, Actual Bytes on the wire: 60
  Packet Info(Time:10/05/2023 15:54:23.944):
   in:X11*(interface), out:--, DROPPED, Drop Code: 17(Unknown Ether type ingress.), Module Id: 16(fwCore), (Ref.Id: _3057_joqvuIppl), 5:5)
  Ethernet Header
   Ether Type: 0x88b7(0x88b7), Src=[8c:85:c1:xx:xx:13], Dst=[09:00:09:xx:xx:a6]
  Ethernet Type: Unknown
  

  ...

  "Ethernet II, Src: ArubaaHe_xx:xx:13 Dst: HewlettP_xx:xx:a6".

  
  

  Any solution please advise.

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• Twizz728 Newbie ✭

  October 2023

  @LEE_S2022 I'm curious about this myself. I have a VPN gateway that is connecting my site to a vendors site and now the vendor site is failing connection requests. I can't ping the vendor site and when I look through the packet monitor I'm seeing packets being dropped with the error code similar to yours.

  Ethernet Header

   Ether Type: 0x8ffd(0x8ffd), Src=[b8:37:b2:c4:97:ac], Dst=[ff:ff:ff:ff:ff:ff]

  Ethernet Type: Unknown

  Value:[0]

  DROPPED, Drop Code: 17(Unknown Ether type ingress.), Module Id: 16(fwCore), (Ref.Id: _3085_kprwvJqqm) 1:1)

  0