As soon as the Dummynet Kernel module is loaded and the appropriate ipfw add pipe 1 from localhost to localhost command is issued, I can no longer ping localhost — I receive the ping: sendto: No buffer space available error.

How can I solve this issue?


I was able to solve the problem myself - it appears that by bug or by feature the pipe starts working correctly as soon as some parameters of the pipe are configured. In my case, I issued the following command: ipfw pipe 1 config delay 0ms.

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