Ask Your Question

Frame more than 126 bytes can not receive - I210 intel network adapter network adapter on Dell 0K8Y0N - Window OS

asked 2021-08-30 09:48:12 +0000

liujia gravatar image

Hi, I am newbie. I rent a dell DSS5100 server which configured as atom C2338 CPU and intel I210 network adapter. Server run well on Linux OS But re-install Windows 2019 with intel latest network adapter driver, it can not receive/process frame which has more than 127 bytes length. For example, ping -l 84 is okay, but ping -l 85 will time out.

I installed wireshark to check. For example, curl to check TCP/IP connection. TCP three hands are okay, but after client send 'GET HTTP1.1 /' package, server did not process, then client did 'TCP Retransmission', and finally send 'RST, ACK', server send a 'TCP Window Update', but connection was reset, http connection failed. But set a short user-agen it okay, for example, curl -A "curl"

Server(Dell 0K8Y0N) - can sent package well, but can not receive/process package which larger than 126 bytes.

Like this:

No.     Time           Source                Destination           Protocol Length Info
      6 2.497835         HTTP     131    GET / HTTP/1.1 

Frame 6: 131 bytes on wire (1048 bits), 131 bytes captured (1048 bits) on interface \Device\NPF_{70DCCE94-DC90-4F1F-9050-F582C1F63BC0}, id 0
Ethernet II, Src: PcsCompu_59:50:77 (08:00:27:59:50:77), Dst: LenovoBe_2a:c3:68 (20:76:93:2a:c3:68)
    Destination: LenovoBe_2a:c3:68 (20:76:93:2a:c3:68)
    Source: PcsCompu_59:50:77 (08:00:27:59:50:77)
    Type: IPv4 (0x0800)
Internet Protocol Version 4, Src:, Dst:
Transmission Control Protocol, Src Port: 50122, Dst Port: 80, Seq: 1, Ack: 1, Len: 77
    Source Port: 50122
    Destination Port: 80
    [Stream index: 2]
    [TCP Segment Len: 77]
    Sequence Number: 1    (relative sequence number)
    Sequence Number (raw): 4285732873
    [Next Sequence Number: 78    (relative sequence number)]
    Acknowledgment Number: 1    (relative ack number)
    Acknowledgment number (raw): 2026075288
    0101 .... = Header Length: 20 bytes (5)
    Flags: 0x018 (PSH, ACK)
    Window: 1025
    [Calculated window size: 262400]
    [Window size scaling factor: 256]
    Checksum: 0xea3b [unverified]
    [Checksum Status: Unverified]
    Urgent Pointer: 0
    [SEQ/ACK analysis]
    TCP payload (77 bytes)
Hypertext Transfer Protocol

No.     Time           Source                Destination           Protocol Length Info
      7 3.127867         TCP      131    [TCP Retransmission] 50122 → 80 [PSH, ACK] Seq=1 Ack=1 Win=262400 Len=77


I tried to set MTU lower than 126 or 84, but Windows can not set MTU smaller than 352.

edit retag flag offensive close merge delete

1 Answer

Sort by » oldest newest most voted

answered 2021-09-08 07:52:04 +0000

martyvis gravatar image

Hi Liujia,

I think you have also posted here on the Intel forum and are awaiting an answer from them

I do think (especially as you have said the server works fine on Linux) that you probably have either a Windows driver issue, or at least configuration issue with that driver. It does seems a particularly unusual behaviour you are experiencing. Ultimately I think Wireshark is only confirming what you have seen by your testing - and can't really fix the issue that might be in the driver.

edit flag offensive delete link more


Thanks for your answer. Yes, Wireshark help me know more about this case, it is a good tools. I asked Intel for support about the Windows driver, but Intel said that, 'this is not a problem with driver or controller. I210 is a mature product. customer should be contacting Dell becuase it is embedded device (I210) on Dell system', and you see that, Intel also closed my posted on I asked Dell support too, but Dell require 'Service Tag' which hosting company can not supply. So I have to posted for help from community forum, like here. If set a low MTU(for example, set MTU to 112 bytes) or IP fragment can temporary address this issue, how to do? I googled this - WinpkFilter which can supports MTU decrement. But I do not know about program, I do not know how to set a ...(more)

liujia gravatar imageliujia ( 2021-09-08 08:20:22 +0000 )edit

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Question Tools

1 follower


Asked: 2021-08-30 09:48:12 +0000

Seen: 239 times

Last updated: Sep 08 '21