Opened 15 years ago
Closed 15 years ago
#3080 closed defect (duplicate)
Linux Host Networking problem in VirtualBox 2.1.0 (malformed Ethernet frames?)
| Reported by: | corvus | Owned by: | |
|---|---|---|---|
| Component: | network/hostif | Version: | VirtualBox 2.1.0 |
| Keywords: | Ethernet | Cc: | |
| Guest type: | other | Host type: | other |
Description
There is a problem with new network subsystem in VB 2.1.0. Something wrong happening with ethernet frames. To check it you just need to setup hostif networking and do network capture with tcpdump/wireshark. Both sniffers say that Ethernet frames are corrupted or Ethertype is not recognized.
In VB2.0.6 everything worked like a charm. But after update hostif networking doesn't work correctly.
Attachments (1)
Change History (7)
by , 15 years ago
| Attachment: | network.cap added |
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comment:2 by , 15 years ago
Replying to sandervl73:
Windows host or Linux host?
Linux host.
Btw, I found where the problem is. Seems like VBox extracts IP packet from stream and tcpdump/Wireshark captures raw TCP/IP outgoing stream. When the packet goes to the Guest OS it is packed into Ethernet frame and tcpdump/Wireshark sees that Ethernet frame.
So in the file that I provided you may see IP packets mixed with Ethernet frames on the same level! I know that tun/tap interface may work both with Ethernet and IP levels but why does VBox 2.1 mixes them? It didn't take place in 2.0.6.
comment:3 by , 15 years ago
| Summary: | Windows Host Networking problem in VirtualBox 2.1.0 (malformed Ethernet frames?) → Linux Host Networking problem in VirtualBox 2.1.0 (malformed Ethernet frames?) |
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follow-up: 5 comment:4 by , 15 years ago
Could you try the latest version of vboxnetflt attached to #3056? The instructions are there as well. It accumulates fixes for a number of issues.
comment:5 by , 15 years ago
Replying to sandervl73:
Could you try the latest version of vboxnetflt attached to #3056? The instructions are there as well. It accumulates fixes for a number of issues.
Thank you very much! It did work! YOu may close the bug now.
comment:6 by , 15 years ago
| Resolution: | → duplicate |
|---|---|
| Status: | new → closed |
Thanks for the feedback! Closing as duplicate of #3056.
Sample network capture (linux host + winxpsp2 guest). Was pinging host from guest. You may see icmp echo replies but no icmp echo requests (because of ethernet frame problem).