Opened 13 years ago
Last modified 10 years ago
#8369 closed defect
NAT connection to host is terribly slow — at Initial Version
| Reported by: | Artem S. Tashkinov | Owned by: | |
|---|---|---|---|
| Component: | network/NAT | Version: | VirtualBox 4.0.4 |
| Keywords: | nat | Cc: | |
| Guest type: | Linux | Host type: | Linux |
Description
Probably NAT is not meant for transferring data between host OS and guest OS, but since it's possible I suppose such a connection should have a speed comparable to Host-only connection.
However it's not the case.
When copying data from Fedora 14 guest to Fedora 14 host (both have i686 arch) I get 196KB/sec connection speed on average. Both hosts are 100% idle when copying (host OS exports SMB shares, guest OS has them mounted via CIFS).
When I copy data using Host-only adapter the speed soars to 20-30MB/sec.
P.S. Guest additions are not installed. Guest OS has Intel PRO/1000MT Desktop (82540EM) adapter.
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Low speed when copying a file from a guest OS to a host OS - screenshot